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 !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~������c�	��0M�bjbj���	+�؎U\؎U\*
C�������JJ�$�$Z%Z%Z%D�����%�%�%�&:'d�%f��)�X.X.X.X.222e	e	e	e	e	e	e$�h�lk�-e�Z%2�1"222-e�$�$X.X.��eO:O:O:2~�$lX.Z%X.eO:2eO:O:�k\D.%,�_X.����t���������3|�]&�d�e0f�]�l4:lL�_�_XlZ%'`�22O:22222-e-eO:222f2222��������������������������������������������������������������������l222222222J>�#:	Using Software Product Line Application in Enterprise Resources Planning Systems 
Systimatic Literature Review 

Sabah Al.Busaidi 
Computer Science Department 
Sultan Qaboos University 
Muscat, Oman
S114080@student.squ.edu.om
Naoufel Kraiem
Computer Science Department 
Sultan Qaboos University- Muscat, Oman 
RIADI- ENSI
Campus of Manouba - Tunisia
naoufel@squ.edu.om


Abstract� The use of Enterprise Resource Planning (ERP) systems has dramatically increase in many companies in recent years, and research related to the implementation of ERP has increased in the last decade. On one hand, getting the advantages of ERP systems largely depends on the level of matching of ERP functionalities with the enterprise requirements. On the other hand, Product Line Engineering (PLE) is a method to manage both reuse and variability in a pre-defined way and thus brings software development to a more advanced stage. At the same time, Software Product Lines (SPLs) have emerged as a trend in software engineering. SPLs are set of software-intensive systems sharing a common, managed set of features that satisfy specific needs of a particular market or mission. Building SPLs for ERP systems will have side effects on the implementation process of ERP and will raise the flexibility of both configuration and customization issues of ERP implementation.
Objective: the main goal of this study is to provide the different ways of identifying and analyzing the techniques presented in the literature to improve ERP implementation problems using the methods, tools and techniques provided by SPLs. 
Method: in order to achieve that objective, we reviewed the relevant literatures and analyzed existing studies. 
Results: this literature review analyzes ten pieces of research in both ERP and SPLs concepts. It shows that the product line aspect can be used to solve configuration and customization issues of ERP. 
Keywords- ERP, Software Product Lines, ERP configuration,    ERP customization, variability. 
Introduction 
Reuse is employed more and more as a methodological and technological solution for developing complex software systems. A major challenge to the research community and industries is to find methods, process, appropriate language and tools for better reuse and mass configuration of software systems ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Ahnassay", "given" : "Alvin", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Bagheri", "given" : "Ebrahim", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Gasevic", "given" : "Dragan", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2011" ] ] }, "page" : "1-52", "title" : "EMPIRICAL EVALUATION IN SOFTWARE PRODUCT LINE ENGINEERING", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=2d5151f4-63c3-4b6b-a96f-8efe85cc3140" ] } ], "mendeley" : { "formattedCitation" : "[1]", "plainTextFormattedCitation" : "[1]", "previouslyFormattedCitation" : "[1]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[1]. Software Product Line Engineering (SPLE) is a new method of software reuse. Software Product Lines (SPLs) are considered to be a successful approach to reuse in several domains like cars, printers and phones especially in software development ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "10.17706/jsw.10.7.881-892", "ISSN" : "1796217X", "author" : [ { "dropping-particle" : "", "family" : "Ouali", "given" : "Sami", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Kra\u00efem", "given" : "Naoufel", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Al-khanjari", "given" : "Zuhoor", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Baghdadi", "given" : "Youcef", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issue" : "7", "issued" : { "date-parts" : [ [ "2013" ] ] }, "page" : "447-454", "title" : "A Model Driven Software Product Line Process A Meta-model for SPL", "type" : "article-journal", "volume" : "10" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=8e88c9e6-2568-46f7-afca-cb3b8eeeb731" ] } ], "mendeley" : { "formattedCitation" : "[2]", "plainTextFormattedCitation" : "[2]", "previouslyFormattedCitation" : "[2]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[2]. SPLE has been recognized as a paradigm which provides strategic software reuse ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "10.1109/ICECCS.2011.15", "ISBN" : "9780769543819", "abstract" : "In software product line (SPL) engineering, a software configuration can be obtained through a valid selection of features represented in a feature model (FM). With a strong separation between requirements and reusable components and a deep impact of high level choices on technical parts, determining and configuring an well-adapted software configuration is a long, cumbersome and error-prone activity. This paper presents a modeling process in which variability sources are separated in different FMs and inter-related by propositional constraints while consistency checking and propagation of variability choices are automated. We show how the variability requirements can be expressed and then refined at design time so that the set of valid software configurations to be considered at run time may be highly reduced. Software tools support the approach and some experimentations on a video surveillance SPL are also reported.", "author" : [ { "dropping-particle" : "", "family" : "Acher", "given" : "Mathieu", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Collet", "given" : "Philippe", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Lahire", "given" : "Philippe", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Moisan", "given" : "Sabine", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Rigault", "given" : "Jean Paul", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "Proceedings - 2011 16th IEEE International Conference on Engineering of Complex Computer Systems, ICECCS 2011", "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2011" ] ] }, "page" : "77-86", "title" : "Modeling variability from requirements to runtime", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=0a621423-c896-4bec-9b0d-c91de9e8ae48" ] } ], "mendeley" : { "formattedCitation" : "[3]", "plainTextFormattedCitation" : "[3]", "previouslyFormattedCitation" : "[3]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[3] and it allows enterprises to reduce development costs and time to market and increase product quality ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "10.1109/SPLC.2011.51", "ISBN" : "9780769544878", "author" : [ { "dropping-particle" : "", "family" : "Kato", "given" : "Shigeo", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Yamaguchi", "given" : "Nobuhito", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2011" ] ] }, "title" : "Variation Management for Software Product Lines with Cumulative Coverage of Feature Interactions", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=5be5ad38-20f5-4dc6-a442-62ea84c7c290" ] } ], "mendeley" : { "formattedCitation" : "[4]", "plainTextFormattedCitation" : "[4]", "previouslyFormattedCitation" : "[4]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[4]. It moves enterprises from developing a single software system to developing a set of software systems which share a similar and managed set of features. The use of SPL is mainly based on the reuse and mass configuration. It has been defined as a set of correlated systems that address a market segment and that are created from a common set of core assets ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Khtira", "given" : "Amal", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Benlarabi", "given" : "Anissa", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "El", "family" : "Asri", "given" : "Bouchra", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issue" : "4", "issued" : { "date-parts" : [ [ "2015" ] ] }, "page" : "1-11", "title" : "A Tool Support for Automatic Detection of Duplicate Features during Software Product Lines Evolution", "type" : "article-journal", "volume" : "12" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=35b9875c-ebcc-4445-96e1-8d0789b6aeaa" ] } ], "mendeley" : { "formattedCitation" : "[5]", "plainTextFormattedCitation" : "[5]", "previouslyFormattedCitation" : "[5]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[5].
Different Studies and research use varying definitions and implementation of ERP systems. According to Chofreh et al [6] the ERP system combines all information and processes of an enterprise into a single system that focuses how people and organizations access, store, gather, summarize, interpret, and use information for different purposes inside the organization ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "10.1016/j.jclepro.2014.01.010", "ISSN" : "09596526", "abstract" : "The world faces to the problem of integration between sustained business functions. The sustainability data is not sufficiently integrated and used for decision making. To solve this problem, organizations need information systems to facilitate their sustainability initiatives. In this study has been proposed Sustainable Enterprise Resource Planning (S-ERP) system as a holistic solution to support sustainability initiatives. The paper highlights the significance of S-ERP system and provides its future research direction to guide the academic researchers. Two research areas are included - the ERP and sustainability, to discover how academicians and practitioners solved the problems of integration and sustainability. The S-ERP systems' life cycle and identified six key areas include: concept, system design, pre-implementation, implementation, post-implementation, and system extension/retirement have been defined. They distinguish number of broad research themes based on key areas. S-ERP system appears as a promising solution to solve integration problems in sustainability; however the academic researchers need to take certain direction for assisting organizations for solving their business issues. ?? 2014 Elsevier Ltd. All rights reserved.", "author" : [ { "dropping-particle" : "", "family" : "Chofreh", "given" : "Abdoulmohammad Gholamzadeh", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Goni", "given" : "Feybi Ariani", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Shaharoun", "given" : "Awaluddin Mohamed", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Ismail", "given" : "Syuhaida", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Kleme\u0161", "given" : "Ji\u0159\u00ed Jarom\u00edr", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "Journal of Cleaner Production", "id" : "ITEM-1", "issue" : "October", "issued" : { "date-parts" : [ [ "2014" ] ] }, "page" : "139-147", "title" : "Sustainable enterprise resource planning: Imperatives and research directions", "type" : "article-journal", "volume" : "71" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=5c7c64c5-34d2-4510-a909-70f2efe2ed1a" ] } ], "mendeley" : { "formattedCitation" : "[6]", "plainTextFormattedCitation" : "[6]", "previouslyFormattedCitation" : "[6]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[6]. From the business point of view, ERP implementation has some issues related to configuration and customization, which we aim to solve by using the concept of SPLs. There are different approaches and frameworks in the literature targeting both ERP and SPL as a solution perspective. Research on ERP systems is increasing in order to adopt new trends of technologies and to change business process. Implementing an ERP system successfully is important for the future competitive strategy of a company. In 2016, Nasr and Gheith defined an ERP implementation as the process of transforming a standard ERP product into an operational system inside an organization ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "10.1145/2944165.2944171", "ISBN" : "9781450342933", "author" : [ { "dropping-particle" : "", "family" : "Ali", "given" : "Mohamed", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Nasr", "given" : "Eman S.", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Gheith", "given" : "Mervat H.", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "Proceedings of the 2nd Africa and Middle East Conference on Software Engineering - AMECSE '16", "id" : "ITEM-1", "issue" : "January", "issued" : { "date-parts" : [ [ "2016" ] ] }, "page" : "34-39", "title" : "A Requirements Elicitation Approach for Cloud Based Software Product Line ERPs", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=5ee045c3-27d4-486a-92e0-e8e33206504b" ] } ], "mendeley" : { "formattedCitation" : "[7]", "plainTextFormattedCitation" : "[7]", "previouslyFormattedCitation" : "[7]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[7]. The two basic concepts of ERP which require more consideration are configuration and customization [35]. Configuration is a normal step in any software process that does not require any change in the source code. Customization means the process of adding new features or modifying the existing features of an ERP product which require change in the source code, and deeply understanding of existing program�s functionality. For instance: modifications of user interfaces, output and messages and even program codes ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "10.1016/j.is.2011.10.010", "ISBN" : "0306-4379", "ISSN" : "03064379", "abstract" : "Implementation of Enterprise Resource Planning systems (ERPs) is a complex and costly process, which usually results in serious failures. The majority of previous studies and research projects have been conducted in identifying ERP Critical Success Factors (CSFs) rather than Critical Failure Factors (CFFs). On the other hand, most studies have been devoted to developed countries, while in developing countries, many companies have moved towards using such systems. The majority of IT/IS management standards and guidelines have been developed by technologically-leading countries. But developing countries, which mostly confront with especial challenges, have a different condition from the implicit assumptions of leading countries. Iran is one of these countries that many of its ERP implementation projects led to failure. There is no comprehensive study that identifies ERP CFFs in Iranian industries. The main purpose of this study is to identify such factors and classify them to help other industries, consultants and implementers to prevent failures in the implementation of ERP projects. So, at first, with the semi structured interviews and literature reviews, 47 failure factors were identified. After that a questionnaire developed and sent to ERP project team members in Iranian industries that failed in their ERP projects. Robust Exploratory Factor Analysis (EFA) has been used for data analysis, which finally classified critical failure factors in seven groups named as vendor and consultant, human resources, managerial, project management, processes, organizational and technical. The results of this study have provided a very useful reference for scholars and managers to identify the relevant issues of ERP projects failure in developing countries. ?? 2011 Elsevier Ltd. All rights reserved.", "author" : [ { "dropping-particle" : "", "family" : "Amid", "given" : "Amin", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Moalagh", "given" : "Morteza", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Zare Ravasan", "given" : "Ahad", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "Information Systems", "id" : "ITEM-1", "issue" : "3", "issued" : { "date-parts" : [ [ "2012" ] ] }, "page" : "227-237", "publisher" : "Elsevier", "title" : "Identification and classification of ERP critical failure factors in Iranian industries", "type" : "article-journal", "volume" : "37" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=10de68ca-958f-4f45-92c2-62885d9fe53a" ] } ], "mendeley" : { "formattedCitation" : "[8]", "plainTextFormattedCitation" : "[8]", "previouslyFormattedCitation" : "[8]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[8]. Mazo and Assar (2014), stated that the difference between ERP systems and PLE concur on two concepts: variability management and the capability to be configured, customized and adapted to possibly various environments ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Mazo", "given" : "Ra\u00fal", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Assar", "given" : "Sa\u00efd", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Salinesi", "given" : "Camille", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "Ben", "family" : "Hassen", "given" : "Noura", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issue" : "1", "issued" : { "date-parts" : [ [ "2014" ] ] }, "title" : "Using Software Product Line to improve ERP Engineering : Literature Review and Analysis", "type" : "article-journal", "volume" : "1" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=6ec7915c-a1b1-4c9d-85b3-b674f5ca2df6" ] } ], "mendeley" : { "formattedCitation" : "[9]", "plainTextFormattedCitation" : "[9]", "previouslyFormattedCitation" : "[9]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[9]. The systematic handling and the reuse of artifacts of variability provide significant concepts for various industrial settings. Variability models are a key concept in software product line engineering and also ERP systems ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "ISBN" : "9781450310581", "author" : [ { "dropping-particle" : "", "family" : "N\u00f6bauer", "given" : "Markus", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Seyff", "given" : "Norbert", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Stoiber", "given" : "Reinhard", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2012" ] ] }, "page" : "21-26", "title" : "Managing Variability of ERP Ecosystems : Research Issues and Solution Ideas from Microsoft Dynamics AX", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=6d61dccd-1046-4094-8e1b-bbc3d74a05c2" ] } ], "mendeley" : { "formattedCitation" : "[10]", "plainTextFormattedCitation" : "[10]", "previouslyFormattedCitation" : "[10]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[10].
 Variability in ERP systems is implemented by representing organizational data in operational tables and configuration parameters in strategic tables describing varying operational information ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Mazo", "given" : "Ra\u00fal", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Assar", "given" : "Sa\u00efd", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Salinesi", "given" : "Camille", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "Ben", "family" : "Hassen", "given" : "Noura", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issue" : "1", "issued" : { "date-parts" : [ [ "2014" ] ] }, "title" : "Using Software Product Line to improve ERP Engineering : Literature Review and Analysis", "type" : "article-journal", "volume" : "1" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=6ec7915c-a1b1-4c9d-85b3-b674f5ca2df6" ] } ], "mendeley" : { "formattedCitation" : "[9]", "plainTextFormattedCitation" : "[9]", "previouslyFormattedCitation" : "[9]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[9]. SPL is usually represented by means of a Product Line Model (PLM). A PLM represents, in an intensive way, the collection of products that belong to the product line ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "ISBN" : "9781467366304", "author" : [ { "dropping-particle" : "", "family" : "Triki", "given" : "Raouia", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Salinesi", "given" : "Camille", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Triki", "given" : "Raouia", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Salinesi", "given" : "Camille", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Mazo", "given" : "Ra\u00fal", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2015" ] ] }, "title" : "Product Lines To cite this version : Three strategies to Specify Multi-Instantiation in Product Lines", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=9b2e0e19-f37f-40b3-b5e8-2a1a261c8ec4" ] } ], "mendeley" : { "formattedCitation" : "[11]", "plainTextFormattedCitation" : "[11]", "previouslyFormattedCitation" : "[11]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[11]. The goal of this paper is to combine the concepts of ERP and SPL available knowledge. As the level of importance of these topics increases, there is not enough research to cover them. Thus, the available literature is scarce: only ten papers fulfilled the study and inclusion criteria, and amount of these contributions are restricted to a limited number of methods, models and techniques.  
This paper is structured as follows. Section 2 briefly presents the background, which discusses the two main concepts needed to understand the rest of the paper. Section 3 shows an overview of the research method that was employed to perform the literature review. Section 4 highlights and discusses the main findings derived from the analysis of the results and points out the recommendations and Section 5 explains these results. Finally, we conclude the paper and highlight possible future work in Section 6.
Background
Product Line Engineering (PLE) is an emerging model that allows the development products by reuse of artifacts from a product line. A Product Line (PL) is a set of system sharing a similar, controlled set of features that satisfy the specific needs of a particular market segment or mission and that are developed from a common set of core assets in a predefined way ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "ISBN" : "9781467366304", "author" : [ { "dropping-particle" : "", "family" : "Triki", "given" : "Raouia", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Salinesi", "given" : "Camille", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Triki", "given" : "Raouia", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Salinesi", "given" : "Camille", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Mazo", "given" : "Ra\u00fal", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2015" ] ] }, "title" : "Product Lines To cite this version : Three strategies to Specify Multi-Instantiation in Product Lines", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=9b2e0e19-f37f-40b3-b5e8-2a1a261c8ec4" ] } ], "mendeley" : { "formattedCitation" : "[11]", "plainTextFormattedCitation" : "[11]", "previouslyFormattedCitation" : "[11]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[11]. Software Product Line Engineering (SPLE) often distinguishes two main processes. The first is a domain engineering process which deals with developing and maintaining reusable core or domain assets that typically are reusable components of software. In this process, products are built from a set of artifacts that have been specifically designed as a reusable core asset base. These core assets comprise the software architecture, its documentation, specifications, tools and software components ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Mazo", "given" : "Ra\u00fal", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Assar", "given" : "Sa\u00efd", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Salinesi", "given" : "Camille", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "Ben", "family" : "Hassen", "given" : "Noura", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issue" : "1", "issued" : { "date-parts" : [ [ "2014" ] ] }, "title" : "Using Software Product Line to improve ERP Engineering : Literature Review and Analysis", "type" : "article-journal", "volume" : "1" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=6ec7915c-a1b1-4c9d-85b3-b674f5ca2df6" ] } ], "mendeley" : { "formattedCitation" : "[9]", "plainTextFormattedCitation" : "[9]", "previouslyFormattedCitation" : "[9]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[9]. The second process is application engineering which deals with the development of software products, or applications, using these core assets for quick and efficient composition of software products tailored to the customer�s requirements ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "ISBN" : "9781605589688", "author" : [ { "dropping-particle" : "", "family" : "Hanssen", "given" : "Geir Kjetil", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "0" ] ] }, "page" : "1-7", "title" : "Opening Up Software Product Line Engineering", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=fb1cf3e4-5468-4716-80a0-4d8799bad131" ] } ], "mendeley" : { "formattedCitation" : "[12]", "plainTextFormattedCitation" : "[12]", "previouslyFormattedCitation" : "[12]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[12]. The transition between the two domains is made through a configuration that adapts a domain model to define an application product ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "0" ] ] }, "title" : "Intelligent software product line configurations A literature review", "type" : "article" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=5a2e66e5-9ddc-4990-826e-d2245788bb37" ] } ], "mendeley" : { "formattedCitation" : "[13]", "plainTextFormattedCitation" : "[13]", "previouslyFormattedCitation" : "[13]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[13]. SPL is usually shown by using a Product Line Model (PLM) ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "ISBN" : "9781467366304", "author" : [ { "dropping-particle" : "", "family" : "Triki", "given" : "Raouia", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Salinesi", "given" : "Camille", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Triki", "given" : "Raouia", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Salinesi", "given" : "Camille", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Mazo", "given" : "Ra\u00fal", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2015" ] ] }, "title" : "Product Lines To cite this version : Three strategies to Specify Multi-Instantiation in Product Lines", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=9b2e0e19-f37f-40b3-b5e8-2a1a261c8ec4" ] } ], "mendeley" : { "formattedCitation" : "[11]", "plainTextFormattedCitation" : "[11]", "previouslyFormattedCitation" : "[11]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[11]. Product Line Models (PLMs) can be specified with different languages like Feature Models, Constraint-based PLMs, or Orthogonal Variability Models and Decision Models ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Jaramillo", "given" : "Leon", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Salinesi", "given" : "Camille", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Jaramillo", "given" : "Leon", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Salinesi", "given" : "Camille", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Dumitrescu", "given" : "Cosmin", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2014" ] ] }, "title" : "Material Needs Forecast for Product Lines , a Bayesian-based Analysis Approach To cite this version : Material Needs Forecast for Product Lines , a Bayesian-based Analysis Approach", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=0ae88ffd-f27d-40a3-915d-40df5d204e76" ] } ], "mendeley" : { "formattedCitation" : "[14]", "plainTextFormattedCitation" : "[14]", "previouslyFormattedCitation" : "[14]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[14], ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Galindo", "given" : "A", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Dhungana", "given" : "Deepak", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Rabiser", "given" : "Rick", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Benavides", "given" : "David", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Gr", "given" : "Paul", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Galindo", "given" : "A", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Dhungana", "given" : "Deepak", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Rabiser", "given" : "Rick", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Benavides", "given" : "David", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Botterweck", "given" : "Goetz", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2015" ] ] }, "title" : "Supporting Distributed Product Configuration by Integrating Heterogeneous Variability Modeling Approaches To cite this version : Supporting Distributed Product Configuration by Integrating Heterogeneous Variability Modeling Approaches", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=9fb7741b-598a-4f8e-be91-af1b1ce57f95" ] } ], "mendeley" : { "formattedCitation" : "[15]", "plainTextFormattedCitation" : "[15]", "previouslyFormattedCitation" : "[15]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[15]. Therefore, PLE is an important method and is used to reduce time to market and TCO cost as well as it reducing the configuration time of new products ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Salinesi", "given" : "Mazo Camille", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "0" ] ] }, "page" : "1-153", "title" : "Methods, Techniques and Tools for Product Line Model Verification", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=647e89e9-c041-4419-9948-9e8b7389a121" ] } ], "mendeley" : { "formattedCitation" : "[16]", "plainTextFormattedCitation" : "[16]", "previouslyFormattedCitation" : "[16]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[16]. According to Voelter�s research, there are some reasons for adopting SPL in enterprises like, it minimizes development time, effort, cost, and complexity by taking advantage of the commonality within a portfolio of same products ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "10.1109/SPLINE.2007.4339272", "ISBN" : "0769528880", "abstract" : "Software product line engineering aims to reduce development time, effort, cost, and complexity by taking advantage of the commonality within a portfolio of similar products. The effectiveness of a software product line approach directly depends on how well feature variability within the portfolio is implemented and managed throughout the development lifecycle, from early analysis through maintenance and evolution. This paper presents an approach that facilitates variability implementation, management and tracing by integrating model-driven and aspect-oriented software development. Features are separated in models and composed by aspect-oriented composition techniques on model level. Model transformations support the transition from problem to solution domain. 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Beside obvious advantages of SPL, there are also several potential drawbacks and challenges. According to Schaefer�s finding in [18], reducing the time of software development affects the product�s quality. This is especially occurs in the development of applications with high safety and security requirements. Moreover, maintenance of product lines is more difficult and expensive compared with single-system maintenance ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Schaefer", "given" : "Ina", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "H\u00e4hnle", "given" : "Reiner", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "SOF T WARE TECHNOLOGIES", "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2011" ] ] }, "title" : "Formal Methods in Software Product Line Engineering", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=2130192d-c53c-4dcc-960a-5f9282ba0dc5" ] } ], "mendeley" : { "formattedCitation" : "[18]", "plainTextFormattedCitation" : "[18]", "previouslyFormattedCitation" : "[18]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[18]. Variability is one of the main keys of SPLs. It describes the variances that exist across the artifacts like various implementations or algorithms for different environments and/or requirements ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "10.1016/j.jss.2013.10.010", "author" : [ { "dropping-particle" : "", "family" : "Benavides", "given" : "David", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Schmidt", "given" : "Douglas", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issue" : "November", "issued" : { "date-parts" : [ [ "2013" ] ] }, "title" : "Evolving feature model configurations in software product lines", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=14df909e-e6ed-47e3-b2d5-cd63ba4bb86f" ] } ], "mendeley" : { "formattedCitation" : "[19]", "plainTextFormattedCitation" : "[19]", "previouslyFormattedCitation" : "[19]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[19]. Different variability models and techniques have been proposed in ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Ouali", "given" : "Sami", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Kra\u00efem", "given" : "Naoufel", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "Ben", "family" : "Ghezala", "given" : "Henda", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "International Journal of Emerging Technology and Advanced Engineering", "id" : "ITEM-1", "issue" : "September 2016", "issued" : { "date-parts" : [ [ "2015" ] ] }, "title" : "Intentional Software Product Line using Model Driven Engineering Intentional Software Product Line using Model Driven Engineering", "type" : "article-journal", "volume" : "5" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=04bf24a4-bdba-41ba-a0a7-a5e100373331" ] } ], "mendeley" : { "formattedCitation" : "[20]", "plainTextFormattedCitation" : "[20]", "previouslyFormattedCitation" : "[20]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[20], for instance: MAP Model, Feature Model and OVM Model. Voelter (2007), has defined the activity that is concerned with identifying, designing, implementing, and tracing flexibility in SPLs as variability management ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "10.1109/SPLINE.2007.4339272", "ISBN" : "0769528880", "abstract" : "Software product line engineering aims to reduce development time, effort, cost, and complexity by taking advantage of the commonality within a portfolio of similar products. The effectiveness of a software product line approach directly depends on how well feature variability within the portfolio is implemented and managed throughout the development lifecycle, from early analysis through maintenance and evolution. This paper presents an approach that facilitates variability implementation, management and tracing by integrating model-driven and aspect-oriented software development. 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Furthermore, Triki ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "ISBN" : "9781467366304", "author" : [ { "dropping-particle" : "", "family" : "Triki", "given" : "Raouia", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Salinesi", "given" : "Camille", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Triki", "given" : "Raouia", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Salinesi", "given" : "Camille", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Mazo", "given" : "Ra\u00fal", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2015" ] ] }, "title" : "Product Lines To cite this version : Three strategies to Specify Multi-Instantiation in Product Lines", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=9b2e0e19-f37f-40b3-b5e8-2a1a261c8ec4" ] } ], "mendeley" : { "formattedCitation" : "[11]", "plainTextFormattedCitation" : "[11]", "previouslyFormattedCitation" : "[11]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[11] has stated that variability is the ability of a system or artifact to be configured, customized, extended, or changed for use in a specific context. The term customization refers to the process of adapting a software product to a range of different users by changing features in the software in order to satisfy their needs. Capturing customization opportunities is known as variability points which means an important activity that allows developers to set the effective ways in which software artifacts can be reused ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Khtira", "given" : "Amal", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Benlarabi", "given" : "Anissa", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "El", "family" : "Asri", "given" : "Bouchra", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issue" : "4", "issued" : { "date-parts" : [ [ "2015" ] ] }, "page" : "1-11", "title" : "A Tool Support for Automatic Detection of Duplicate Features during Software Product Lines Evolution", "type" : "article-journal", "volume" : "12" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=35b9875c-ebcc-4445-96e1-8d0789b6aeaa" ] } ], "mendeley" : { "formattedCitation" : "[5]", "plainTextFormattedCitation" : "[5]", "previouslyFormattedCitation" : "[5]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[5]. According to Heidenreich ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "10.1007/978-3-642-16086-8_3", "ISBN" : "3642160859", "ISSN" : "03029743", "abstract" : "Software product lines using feature models often require the relation between feature models in problem space and the models used to describe the details of the product line to be expressed explicitly. This is particularly important, where automatic product derivation is required. Different approaches for modelling this mapping have been proposed in the literature. However, a discussion of their relative benefits and drawbacks is currently missing. As a first step towards a better understanding of this field, this paper applies two of these approaches-- FeatureMapper as a representative of declarative approaches and VML* as a representative of operational approaches--to the case study. We show in detail how the case study can be expressed using these approaches and discuss strengths and weaknesses of the two approaches with regard to the case study.", "author" : [ { "dropping-particle" : "", "family" : "Heidenreich", "given" : "Florian", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "S\u00e1nchez", "given" : "Pablo", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Santos", "given" : "Jo\u00e3o", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Zschaler", "given" : "Steffen", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Alf\u00e9rez", "given" : "Mauricio", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Ara\u00fajo", "given" : "Jo\u00e3o", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Fuentes", "given" : "Lidia", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Kulesza", "given" : "Uir\u00e1", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Moreira", "given" : "Ana", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Rashid", "given" : "Awais", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)", "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2010" ] ] }, "page" : "69-114", "title" : "Relating feature models to other models of a software product line: A comparative study of FeatureMapper and VML", "type" : "article-journal", "volume" : "6210 LNCS" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=4a673f3f-b718-432d-adf5-15ad0d8302e1" ] } ], "mendeley" : { "formattedCitation" : "[21]", "plainTextFormattedCitation" : "[21]", "previouslyFormattedCitation" : "[21]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[21], there are several steps in order to model variability in the solution space for example: create a reference model for the family of products in the software product line. This reference model must incorporate certain variability mechanisms for supporting the variants specified in the feature model. In recent years, ERP systems have received much attention. From the ERP perspective, Lotfy (2015), defined ERP systems as architectural models which identify the technology, processes, and the people as the core components of the ERP environment ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "abstract" : "The critical factors in the onward and upward phase that maximize the value o the enterprise resource planning (ERP) system from the user\u2019s point of view remain unidentified. A recent study of a public sector organization in the state of Colorado showed that the users\u2019 perspectives regarding the benefits of an ERP system are unrecognized, as well as how the users of the ERP system view the ERP benefits post-implementation. The purpose of this study is to determine the factors that maximize the value of the implemented ERP system in the onward and upward phase postimplementation from the user\u2019s point of view (ERP user value), and how these factors affect the ERP user productivity, effectiveness, and internal efficiency which are major issues for management. A proposed conceptual structural model, based on the Technology-Organization-Environment (TOE) framework, is presented. It is posited that the conceptual model can be used to predict the post-implementation factors from the ERP user\u2019s point of view and measure their impact on the overall ERP benefits for the organization. The research question, hypotheses, and current state of research are presented and discussed.", "author" : [ { "dropping-particle" : "", "family" : "Lotfy", "given" : "Mohamed A", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "Issues in Information Systems", "id" : "ITEM-1", "issue" : "III", "issued" : { "date-parts" : [ [ "2015" ] ] }, "page" : "54-63", "title" : "A Conceptual Model To Measure ERP User-Value", "type" : "article-journal", "volume" : "16" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=c1369383-7eb4-492d-9250-6e39abd90444" ] } ], "mendeley" : { "formattedCitation" : "[22]", "plainTextFormattedCitation" : "[22]", "previouslyFormattedCitation" : "[22]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[22]. Enterprise resource planning (ERP) system implementation projects are very complex, costly and have a high failure risk. There are two strategic approaches of ERP system implementation. The first approach is the TEIs go for a generic version of ERP system. In this approach the institute has to make the changes in the processes to fit the functionality of the ERP system. This takes advantage of future upgrades in the system. The second approach allows institutes to customize the ERP system as per the processes of the institute. ERP implementation focuses on two main challenges: configuration and customization ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "10.1016/j.compind.2014.03.003", "ISBN" : "0166-3615", "ISSN" : "01663615", "abstract" : "An enterprise resource planning (ERP) system is an information system that supports and integrates many facets of a business. A critical issue in ERP implementation is how to bridge the gap between the ERP system and an organization's business processes by customizing either the system, or the business processes of the organization, or both. Literature review shows that customization is a major hindrance in most of the ERP implementation projects. This research applies nominal group technique (NGT) and analytical hierarchy process (AHP) techniques to Luo and Strong's framework to help organizations determine feasible customization choices for their ERP implementation initiatives. A case study is presented to illustrate its applicability in practice. The study has theoretical and practical implications for our understanding of ERP implementation process. \u00a9 2014 Elsevier B.V.", "author" : [ { "dropping-particle" : "", "family" : "Parthasarathy", "given" : "Sudhaman", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Sharma", "given" : "Srinarayan", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "Computers in Industry", "id" : "ITEM-1", "issue" : "6", "issued" : { "date-parts" : [ [ "2014" ] ] }, "page" : "1009-1017", "publisher" : "Elsevier B.V.", "title" : "Determining ERP customization choices using nominal group technique and analytical hierarchy process", "type" : "article-journal", "volume" : "65" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=2d1dd514-cf72-4e7a-9383-0b4b9e7b6b3c" ] } ], "mendeley" : { "formattedCitation" : "[23]", "plainTextFormattedCitation" : "[23]", "previouslyFormattedCitation" : "[23]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[23]. It is important to understand the configuration and customization aspects of ERP system in order to manage the systems efficiently. According to the study conducted by Misfer in 2015, the customization process requires source code modification, while configuration is applied through a predefined parameter setting to modify application functions within pre-defined scope ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "10.7763/LNSE.2015.V3.173", "ISSN" : "23013559", "author" : [ { "dropping-particle" : "", "family" : "Al-Shardan", "given" : "Mona Misfer", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Ziani", "given" : "Djamal", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "Lecture Notes on Software Engineering", "id" : "ITEM-1", "issue" : "2", "issued" : { "date-parts" : [ [ "2015" ] ] }, "page" : "95-100", "title" : "Configuration as a Service in Multi-Tenant Enterprise Resource Planning System", "type" : "article-journal", "volume" : "3" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=952e29cf-a864-4fe9-b7b2-41e032e9d0ce" ] } ], "mendeley" : { "formattedCitation" : "[24]", "plainTextFormattedCitation" : "[24]", "previouslyFormattedCitation" : "[24]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[24]. ERP configuration is about balancing the way the customer wants the system to work, for example; customer requirements, with the way it was designed to work. ERP systems typically build many changeable parameters that modify system operation ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Mazo", "given" : "Ra\u00fal", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Assar", "given" : "Sa\u00efd", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Salinesi", "given" : "Camille", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "Ben", "family" : "Hassen", "given" : "Noura", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issue" : "1", "issued" : { "date-parts" : [ [ "2014" ] ] }, "title" : "Using Software Product Line to improve ERP Engineering : Literature Review and Analysis", "type" : "article-journal", "volume" : "1" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=6ec7915c-a1b1-4c9d-85b3-b674f5ca2df6" ] } ], "mendeley" : { "formattedCitation" : "[9]", "plainTextFormattedCitation" : "[9]", "previouslyFormattedCitation" : "[9]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[9]. The configuration process is considered as one of the key successes of any SaaS ERP, while customization of ERP is one of the main issues that organizations have been complaining about due to its cost and complexity ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "10.7763/LNSE.2015.V3.173", "ISSN" : "23013559", "author" : [ { "dropping-particle" : "", "family" : "Al-Shardan", "given" : "Mona Misfer", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Ziani", "given" : "Djamal", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "Lecture Notes on Software Engineering", "id" : "ITEM-1", "issue" : "2", "issued" : { "date-parts" : [ [ "2015" ] ] }, "page" : "95-100", "title" : "Configuration as a Service in Multi-Tenant Enterprise Resource Planning System", "type" : "article-journal", "volume" : "3" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=952e29cf-a864-4fe9-b7b2-41e032e9d0ce" ] } ], "mendeley" : { "formattedCitation" : "[24]", "plainTextFormattedCitation" : "[24]", "previouslyFormattedCitation" : "[24]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[24]. Several different studies have been conducted to identify the benefits gained by successful ERP implementation in enterprises such as Chen and Wang�s study in 2016, which argues that the potential benefits of ERP implementation can be classified into tangible and intangible benefits. Despite these significant benefits, there are some major problems with ERP systems ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "http://dx.doi.org/10.1016/j.compind.2015.05.006", "ISSN" : "0166-3615", "abstract" : "Abstract Enterprise resource planning (ERP) systems have been used in integrating information and accelerating its distribution across functions and departments with the aim to increase organizations\u2019 operational performance. Thus, it is worth measuring ERP system performance based on its impact to critical performance of an organization: this requires a systematic method that bridges ERP performance measurement and key organizational performance. The hierarchical balanced scorecard (HBSC) model with respect to multiple criteria decision-making is such a systematic approach to ERP performance measurement. An ERP evaluation framework that integrates the balanced scorecard dimensions, linguistic variables, and non-additive fuzzy integral provides an objective approach to measuring both the performance level of the ERP system and its contribution to the strategic objectives of high-tech firms. Taking Taiwan\u2019s high-tech firms as an example, this study demonstrates the effectiveness of this integrated approach to measure the performance of ERP systems at the post-implementation stage under evaluators\u2019 subjective, uncertainty, and vagueness judgments.", "author" : [ { "dropping-particle" : "", "family" : "Shen", "given" : "Yung-chi", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Chen", "given" : "Pih-shuw", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Wang", "given" : "Chun-hsien", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "Computers in Industry", "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2015" ] ] }, "page" : "127-139", "title" : "Computers in Industry A study of enterprise resource planning ( ERP ) system performance measurement using the quantitative balanced scorecard approach", "type" : "article-journal", "volume" : "75" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=1ee77e3a-0bbe-401e-8c6f-2d18c60770e9" ] } ], "mendeley" : { "formattedCitation" : "[25]", "plainTextFormattedCitation" : "[25]", "previouslyFormattedCitation" : "[25]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[25]. Furthermore, in 2001, Toni and Klara summarized some drawbacks in the ERP system that increase the cost of implementing software packages, the cost of software incremental hardware, training, and implementation support is also high ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "10.1109/HICSS.2001.927129", "ISBN" : "0-7695-0981-9", "ISSN" : "1530-1605", "PMID" : "21523564", "abstract" : "The paper describes the impact of critical success factors (CSFs) across the stages of enterprise resource planning (ERP) implementations using the responses from 86 organizations that completed or are in the process of completing an ERP implementation. Our results provide advice to management on how best to utilize their limited resources to choose those CSFs that are most likely to have an impact upon the implementation of the ERP system.", "author" : [ { "dropping-particle" : "", "family" : "Somers", "given" : "T.M.", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Nelson", "given" : "K.", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "Proceedings of the 34th Annual Hawaii International Conference on System Sciences", "id" : "ITEM-1", "issue" : "c", "issued" : { "date-parts" : [ [ "2001" ] ] }, "page" : "1-10", "title" : "The impact of critical success factors across the stages of enterprise resource planning implementations", "type" : "article-journal", "volume" : "00" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=367c9242-61e4-4841-b134-2d110967d693" ] } ], "mendeley" : { "formattedCitation" : "[26]", "plainTextFormattedCitation" : "[26]", "previouslyFormattedCitation" : "[26]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[26]. Even so, the complexity of ERP systems is the most important problem if the systems are not used in an efficient and predictable way. For instance, an ERP system implementation can takes one month to five years ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "abstract" : "The critical factors in the onward and upward phase that maximize the value o the enterprise resource planning (ERP) system from the user\u2019s point of view remain unidentified. A recent study of a public sector organization in the state of Colorado showed that the users\u2019 perspectives regarding the benefits of an ERP system are unrecognized, as well as how the users of the ERP system view the ERP benefits post-implementation. The purpose of this study is to determine the factors that maximize the value of the implemented ERP system in the onward and upward phase postimplementation from the user\u2019s point of view (ERP user value), and how these factors affect the ERP user productivity, effectiveness, and internal efficiency which are major issues for management. A proposed conceptual structural model, based on the Technology-Organization-Environment (TOE) framework, is presented. It is posited that the conceptual model can be used to predict the post-implementation factors from the ERP user\u2019s point of view and measure their impact on the overall ERP benefits for the organization. The research question, hypotheses, and current state of research are presented and discussed.", "author" : [ { "dropping-particle" : "", "family" : "Lotfy", "given" : "Mohamed A", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "Issues in Information Systems", "id" : "ITEM-1", "issue" : "III", "issued" : { "date-parts" : [ [ "2015" ] ] }, "page" : "54-63", "title" : "A Conceptual Model To Measure ERP User-Value", "type" : "article-journal", "volume" : "16" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=c1369383-7eb4-492d-9250-6e39abd90444" ] } ], "mendeley" : { "formattedCitation" : "[22]", "plainTextFormattedCitation" : "[22]", "previouslyFormattedCitation" : "[22]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[22].
Research Method
This section discusses the methodology followed in collecting and analyzing the research and journals used in this report. A main element in the systematic literature reviews is the clear definition of a review protocol in the planning phase that guides its execution. It tries to minimize researchers� bias and helps in structuring the retrieved results. The protocol describes: the research questions for the literature review, the search strategy; the search strings and terms used for searching; the selection and quality assessment criteria that are general restrictions, the inclusion and exclusion criteria for selecting a relevant subset of the publications found, and the data extraction process. It is somewhat difficult to narrow the report on ERP and SPL to specific orders; the relevant material is spread out across numerous studies. The work reported in this paper was achieved by using Kitchenham�s et all methodological strategies. Fig. 1 is an overview of the main steps of the research process ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Mazo", "given" : "Ra\u00fal", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Assar", "given" : "Sa\u00efd", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Salinesi", "given" : "Camille", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "Ben", "family" : "Hassen", "given" : "Noura", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issue" : "1", "issued" : { "date-parts" : [ [ "2014" ] ] }, "title" : "Using Software Product Line to improve ERP Engineering : Literature Review and Analysis", "type" : "article-journal", "volume" : "1" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=6ec7915c-a1b1-4c9d-85b3-b674f5ca2df6" ] } ], "mendeley" : { "formattedCitation" : "[9]", "plainTextFormattedCitation" : "[9]", "previouslyFormattedCitation" : "[9]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[9]. It provides a discussion of the development of the review protocol used in this study. The review protocol identifies the methods used for finding primary studies [1].


Figure  SEQ Figure \* ARABIC 1: Overall Process of Systematic Literature Review

Three main stages can be followed in order to perform a systematic review: planning the review, conducting the review and reporting the results as shown in Fig. 2 ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Mazo", "given" : "Ra\u00fal", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Assar", "given" : "Sa\u00efd", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Salinesi", "given" : "Camille", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "Ben", "family" : "Hassen", "given" : "Noura", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issue" : "1", "issued" : { "date-parts" : [ [ "2014" ] ] }, "title" : "Using Software Product Line to improve ERP Engineering : Literature Review and Analysis", "type" : "article-journal", "volume" : "1" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=6ec7915c-a1b1-4c9d-85b3-b674f5ca2df6" ] } ], "mendeley" : { "formattedCitation" : "[9]", "plainTextFormattedCitation" : "[9]", "previouslyFormattedCitation" : "[9]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[9].  

The first phase (Planning Review) includes identifying the basic needs for a review and developing a review protocol. 
The second phase (Conducting Review) involves identifying and selecting main studies, evaluating the quality of the primary studies, and extracting and producing the information reported in the primary studies ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Ahnassay", "given" : "Alvin", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Bagheri", "given" : "Ebrahim", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Gasevic", "given" : "Dragan", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2011" ] ] }, "page" : "1-52", "title" : "EMPIRICAL EVALUATION IN SOFTWARE PRODUCT LINE ENGINEERING", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=2d5151f4-63c3-4b6b-a96f-8efe85cc3140" ] } ], "mendeley" : { "formattedCitation" : "[1]", "plainTextFormattedCitation" : "[1]", "previouslyFormattedCitation" : "[1]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[1].
The third phase (Reporting Review) comprises synthesizing the data removed during the review execution and summarizing the results of the involved primary studies. The results and analysis of this review is reported in Section 4. The extracted information are presented according to the review questions and is supported by descriptive analysis and graphical representation ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Ahnassay", "given" : "Alvin", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Bagheri", "given" : "Ebrahim", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Gasevic", "given" : "Dragan", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2011" ] ] }, "page" : "1-52", "title" : "EMPIRICAL EVALUATION IN SOFTWARE PRODUCT LINE ENGINEERING", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=2d5151f4-63c3-4b6b-a96f-8efe85cc3140" ] } ], "mendeley" : { "formattedCitation" : "[1]", "plainTextFormattedCitation" : "[1]", "previouslyFormattedCitation" : "[1]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[1].


                         


Figure  SEQ Figure \* ARABIC 2: The main stages to perform a systematic review
LITERATURE REVIEW CONDUCT AND RESULTS
Systematic reviews are becoming a standard research method amongst software engineers. The lack of explored topics holds true in the areas of Enterprise Resource Planning (ERP) and Software Product Lines (SPLs) and justifies the need for more systematic literature reviews of software product line methods, techniques, and the approaches used to improve ERP systems. Systematic reviews are conducted to summarize existing evidence concerning a specific research question, topic area and to identify areas where research is lacking. The research questions asked in this literature review were designed to summarize what software product line methods, techniques, and approaches exist today, how we can use them in solving ERP issues and what methods or approaches are proposed in the study.

Research questions
Our review was guided by the following research questions: 
RQ.1 What is the research proposed (method, approach or framework)?
RQ.2 At which stages are SPL tools and techniques used to handle configuration and customization?
RQ.3 Which variability model is used to deal with configuration and customization? 
RQ.4 Who are benefits the most from the presented work? (Supplier, Partner Company, end user,)? 
RQ.5 Which support tool is developed to automate software product line application in the system? 
RQ.6 How is the proposed method, approach or framework applied and validated?

Search strings and digital libraries
Specific publication databases were selected on the basis that they included research papers in computing and information technology sciences. These digital databases were chosen because they offered the most essential and highest impact journals and conference proceedings and covered the fields of enterprise resource planning and software product line engineering ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Ahnassay", "given" : "Alvin", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Bagheri", "given" : "Ebrahim", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Gasevic", "given" : "Dragan", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2011" ] ] }, "page" : "1-52", "title" : "EMPIRICAL EVALUATION IN SOFTWARE PRODUCT LINE ENGINEERING", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=2d5151f4-63c3-4b6b-a96f-8efe85cc3140" ] } ], "mendeley" : { "formattedCitation" : "[1]", "plainTextFormattedCitation" : "[1]", "previouslyFormattedCitation" : "[1]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[1]. We referred in the search string to the title and the abstract of the paper and we defined the following search strategy: the sources were selected based on an analysis of product line and ERP domain literature. The presented review includes studies published from 2006 to 2016 considering issues related to ERP implementation that are configuration and customization and software product line techniques. We used Google Scholar, Scopus and the digital search feature of IEEE. Retrieving studies and papers from the above databases requires a specific combination of keywords. These keywords establish the identity of papers that suggest the integration of Enterprise Resource Planning and Software Product Line. 
We have used the following search terms used to identify possibly relevant publications in the computing and information technology sciences literature, �Software product line� + ��ERP� or �product line engineering� + �enterprise resource planning�, or �Enterprise Resource Planning� + �Software Product Line Engineering� or �Software Product line models� or �SPL variability�, �ERP�, �ERP implementation�, �ERP configuration�, �ERP customization�. 
Selection and qualification
As the keywords used to find researches are indicated above, the following section lists the exclusion criteria which are defined in the selection stage to decide the papers appropriate for the study:

Publications published between 2006 and 2016 are kept: Only interested in current and relevant publications conducted in recent years. The year 2006 is mentioned up to the year of 2016
The paper should be already published in a trusted conference, journal, report or workshop: Tutorials and electronic books are excluded.
Only publications written in English were kept: language barriers restrict this review to consider papers written in English only, for example, papers written in Dutch or in Spanish were excluded.
Papers where the full-text is available: If the full-text is available for review it is included, otherwise there is no information to review and extract.

At the end of these stages, only 10 studies were left and they are presented in Appendix 1. 
According to our research, the earliest experience was in 2007 by Software Product Lines Approach in Enterprise System Development ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "10.1109/SPLINE.2007.18", "ISBN" : "0-7695-2888-0", "abstract" : "Enterprise Software is an untapped area for Software Product Lines (SPL) approach. Our current understanding of enterprise SPL is as follows. The enterprise SPL is based upon an application centric architecture, which manages variability of platform and non-functional requirements, and these companies would not enjoy the benefit of ERP in terms of cost and speed. Moreover, design architecture [12] makes us difficult achieves variability management for functional requirements in an application layer. NRI has been executing this approach through two projects, (I) development of semi made-to-order package software for the retail chains and (II) restructuring of enterprise systems owned by Seven & i Holdings, the biggest conglomerate of retail industry in Japan. This paper mainly describes what application centric architecture is and how this approach differs from others with lessons learned for the last five years.", "author" : [ { "dropping-particle" : "", "family" : "Ishida", "given" : "Yuzo", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "11th International Software Product Line Conference", "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2007" ] ] }, "page" : "44-53", "title" : "Software Product Lines Approach in Enterprise System Development", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=6fead529-15b5-4c82-a9a1-2c1f4e88f139" ] } ], "mendeley" : { "formattedCitation" : "[27]", "plainTextFormattedCitation" : "[27]", "previouslyFormattedCitation" : "[27]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[27]. There are no articles published between 2000 and 2006 selected in this review. 

Data extraction
We read each of the 10 papers� abstracts very closely to extract the required data. We used a predefined form which consists of a number of attributes to extract and store the data. These attributes are required in order to answer the main review questions ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "abstract" : "Variability Management (VM) in Software Product Line (SPL) is a key activity that usually affects the degree to which a SPL is successful. SPL community has spent huge amount of resources on developing various approaches to dealing with variability related challenges over the last decade. To provide an overview of different aspects of the proposed VM approaches, we carried out a systematic literature review of the papers reporting VM in SPL. This paper presents and discusses the findings from this systematic literature review. The results reveal the chronological backgrounds of various approaches over the history of VM research, and summarize the key issues that drove the evolution of different approaches. This study has also identified several gaps that need to be filled by future efforts in this line of research", "author" : [ { "dropping-particle" : "", "family" : "Chen", "given" : "Lianping", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Babar", "given" : "Muhammad Ali", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Ali", "given" : "Nour", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "SPLC '09 Proceedings of the 13th International Software Product Line Conference", "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2009" ] ] }, "page" : "Pages 81-90", "title" : "Variability Management in Software Product Lines : A Systematic Review", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=f4fb9fb0-8066-4736-a182-01e707a84c84" ] } ], "mendeley" : { "formattedCitation" : "[28]", "plainTextFormattedCitation" : "[28]", "previouslyFormattedCitation" : "[28]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[28]. In addition to obtaining the information required to answer the research questions and quality assessment criteria, the following standard information was also extracted from each primary study: Title of the Paper, Sources (Database and Journal), Date Published, Paper URL, Document Object Identifier (DOI) and Authors. The main goal of collecting the above information is to provide analysis of the meta-data of the research itself. This measurement will provide insight into the growth and interest in software product line research. However, this review has limited its work to reporting the findings associated with answering the research questions ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Ahnassay", "given" : "Alvin", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Bagheri", "given" : "Ebrahim", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Gasevic", "given" : "Dragan", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2011" ] ] }, "page" : "1-52", "title" : "EMPIRICAL EVALUATION IN SOFTWARE PRODUCT LINE ENGINEERING", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=2d5151f4-63c3-4b6b-a96f-8efe85cc3140" ] } ], "mendeley" : { "formattedCitation" : "[1]", "plainTextFormattedCitation" : "[1]", "previouslyFormattedCitation" : "[1]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[1]. 

Table 1 summarizes the different methods, approaches or frameworks that exploit SPL techniques in ERP system, configuration and customization processes. These methods, approaches or frameworks are distinct in the aspects which are covered, loosely structured and not systematically anticipated and their descriptions vary considerably. Each author has a different vision of the ERP and SPLs and the authors present their works accordingly.  

TABLE 1
DATA EXTRACTION FOR RQ1: PROPOSED METHOD, APPROACH OR FRAMEWORK
PaperPROPOSED METHOD APPROACH OR FRAMEWORKP1Describes what application centric architecture is and how this approach differs from others with lessons learned for the last five yearsP2Discusses the integration of a plug-in platform for enterprise software with an existing product line engineering tool suite to support system adaptationP3Proposes a Variant Description Model that comprises all variants resolved and based on the variability defined in the feature modelP4Presents Mapping between the feature model and the family model, which contains ERP configuration options and documentation.P5Deducts a Variant Result Model which means the concrete product configuration P6An investigation of PLE role in identifying and codifying tacit business knowledge in two industrial case studies in the domain of ERP system P7A study of a particular software product line which used ERP as experimentationP8Discusses ERP domain constraints and provides conceptual solutions on how to adapt and extend SPL techniques for this particular context.
Aims to support product configuration in software ecosystems based on several variability models with different semantics that have been created using different notations.P9Introduces practical experience from the application of PLAs in four enterprises of the ERP system domain
Uses decision-flow forms as a variability resolution process which involved of a set of interrelated decisions for a suitable ERP configurationP10Introduces SPLs requirements elicitation approach for cloud ERP systems. 
TABLE 2
DATA EXTRACTION FOR RQ2: IMPLEMENTATION STAGES
PaperIMPLEMENTATION STAGES (CONFIGURATION & CUSTOMIZATION)P1ERP configuration and customizationP2ERP configuration and customizationP3ERP configuration = ERP customizationP4ERP configuration = ERP customizationP5ERP configuration P6ERP configuration and customization P7ERP configuration P8ERP configurationP9 ERP configuration

P10ERP configuration and customization 
Table 2 summarizes the implementation stages at which SPL techniques are applied whither in configuration or customization or both. It is clearly shown in the table that configuration is the most implementation stage used by SPL techniques. Martinez�s study ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Martinez", "given" : "Jabier", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Alonso", "given" : "Carmen", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "In SPLC Workshops", "id" : "ITEM-1", "issue" : "November", "issued" : { "date-parts" : [ [ "2016" ] ] }, "page" : "(pp. 263-266).", "title" : "Introducing Product Line Architectures in the ERP Industry : Challenges and Lessons Learned . Introducing Product Line Architectures in the ERP Industry : Challenges and Lessons Learned", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=b1e99b46-6827-4f28-9cd3-39d32476cd9e" ] } ], "mendeley" : { "formattedCitation" : "[29]", "plainTextFormattedCitation" : "[29]", "previouslyFormattedCitation" : "[29]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[29] mentions, that configuration and customization are considered as being the same.

The variability models and modeling tools which have been used in each method, approach or framework are presented in Table 3. There is no clearly mentioned tool in most of the studies except the one proposed by Wolfinger which mentions DOPLER as a tool that is used for variability modeling in the ERP engineering context ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "10.1109/ICCBSS.2008.30", "ISBN" : "0769530915", "author" : [ { "dropping-particle" : "", "family" : "Wolfinger", "given" : "Reinhard", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Reiter", "given" : "Stephan", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Dhungana", "given" : "Deepak", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Gr\u00fcnbacher", "given" : "Paul", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Pr\u00e4hofer", "given" : "Herbert", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2008" ] ] }, "page" : "21-30", "title" : "Supporting Runtime System Adaptation through Product Line Engineering and Plug-in Techniques", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=5ee4ef17-9e74-4094-aecf-69b92ba5ca99" ] } ], "mendeley" : { "formattedCitation" : "[30]", "plainTextFormattedCitation" : "[30]", "previouslyFormattedCitation" : "[30]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[30].
TABLE 3
DATA EXTRACTION FOR RQ3: VARIABILITY MODEL
PaperVARIABILITY MODELS AND MODELING TOOLSP1Three variability management 
Variability Management of Platform
Variability Management of Non-Functional Requirements
Variability Management of Functional RequirementsP2Feature model 
DOPLER tool for 
variability modeling
 high level decision makingP3Variability modeling tool not clearly mentioned
Variations points are ERP functionalities according to user�s requirements P4Two-layer feature model �FODA� 
First layer: business processes features 
Second layer: configurations features for specific customers P5Feature model
Variability modeling tool not clearly mentionedP6Variability modeling tool not clearly mentioned
Feature modelP7Variability modeling tool not mentionedP8Feature model a centralized feature repositoryP9Feature model
OVM-style model
Decision-oriented modelP10Feature modelTABLE 4
DATA EXTRACTION FOR RQ4: ACTORS INVOLVED
PaperACTORS INVOLVEDP1End users (clients)P2End users (stakeholders) P3End user and Partner companyP4Partner company P5End users and Partner companyP6End users and Partner companyP7Partner company P8Partner company P9Stakeholders, Vendors and suppliersP10Stakeholders, requirements elicitation system, requirements engineers, development engineers, and test and integration engineers.
Table 4 shows the actors who are concerned in the existing variability model. End-users are the most implicated actors in the configuration and customization processes.

Table 5 describes the tools suggested to support the proposed method, approach or framework and the variability modeling approach. Each study presents different tools and techniques in order to support variability modeling. A study published by Wolfinger ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "10.1109/ICCBSS.2008.30", "ISBN" : "0769530915", "author" : [ { "dropping-particle" : "", "family" : "Wolfinger", "given" : "Reinhard", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Reiter", "given" : "Stephan", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Dhungana", "given" : "Deepak", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Gr\u00fcnbacher", "given" : "Paul", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Pr\u00e4hofer", "given" : "Herbert", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2008" ] ] }, "page" : "21-30", "title" : "Supporting Runtime System Adaptation through Product Line Engineering and Plug-in Techniques", "type" : "article-journal" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=5ee4ef17-9e74-4094-aecf-69b92ba5ca99" ] } ], "mendeley" : { "formattedCitation" : "[30]", "plainTextFormattedCitation" : "[30]", "previouslyFormattedCitation" : "[30]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[30], proposes complete configuration tool suites to support variability modeling and to prepare and direct product derivation and customization.

TABLE 5
DATA EXTRACTION FOR RQ5: VARIABILITY TOOL SUPPORT
PaperVARIABILITY TOOL SUPPORTP1Variability tool support not clearly mentioned
relational database (RDBMS) software as middleware open source software (OSS)
Inversion of Control (IoC) container as basic mechanism of pluggable architecture. 
Use of a SPL platform as middle layer to manage variabilityP2NET-based plug-in platform for dynamic loading, unloading and composition of components
Decision-king employed to define the variability model
Project-King that allows defining scenario specific configurations of PL variability model
Configuration-Wizard which processes the scenario specific variability model and presents decisions to the user in a wizard-like interfaceP3Product Line Unified Modeler (PLUM) tool suite used to model a specified scope in each ERP product, implementation and management of Software Product Lines (SPLP4PURE: variants, the tool used, shipped as Eclipse plugins.
Three plugins:
a model validation plugin that enforces a domain specific internal structure of the feature model 
an import plugin that extracts customization menu items in order to build up the Family Model in an automated way
a transformation plugin to set the ERP customizing parameters according to the Variant Result ModelP5Product Line Unified Modeler (PLUM) to improve the capability of the companies to identify and encode tacit business knowledge into reliable, easy to use and to use share knowledge architecture.P6Not clearly mentionedP7PL4X ERP configurator 
Microsoft dynamic AX
ALM for the establishment of traceability between the problem and solution spaces P8Artificial Intelligence techniques 
Decision tree  
Rapid Miner tool which allows user to experiment with a host of decision tree algorithmP9Application programming interface (the Invar API) to support different legislation strategies for variability models
FaMa or FAMILIAR tools for variability (feature) modelingP10Code generator tool which is a development tool that takes as an input the features configurations and builds the reusable assets based on these configurations
Table 6 presents the case studies in which the proposed method, approach or framework is validated and evaluated with the final results of the published work.

TABLE 6
DATA EXTRACTION FOR RQ6: CASE STUDY AND RESULTS
PaperCASE STUDY AND RESULTSP1Defined the boundary between application and platform based on the application development perspective at first, they built up the platform by integrating dozens of OSS products to boost our SPL projects. 
The in-Motion pattern works well in this case, which allows the gradual evolvement of the architecture and the designs through validation in actual projects. P2Conducts a case study in collaboration with the industrial partner BMD Systemhouse GmbH  
Develops 5 different and advanced usage scenarios 
Shows the feasibility and usefulness of the approach by means of these usage scenarios where the variability of the ERP system is represented by means of variability models. 
The different elements of these variability models represent modules of the ERP system and the relationships among these modules P3The experience was done in the Reuse-Cluster Approach Project with four ERP major companies in Egypt P4Applies the method in three European divisions of a metal forming company. Each company uses an SAP ERP system. 
Describes 3 scenarios 
Isolated ERP solution development
�Template�-based solutions
PL solutions
Presents quantitative analysis and Lessons learned to prove the feasibility of applying SPLE concept to ERP system 
P5Conducts two industrial case studies within a Cluster Approach Project implemented in four major companies in Egypt in the domain of ERP system.P6Evaluates both Copiere and Openbravo.P7Provides Concrete examples from Microsoft dynamic AX platform 
Support for sales consultants through sales scenario 
Support for customer application configuration through Analysis and Design Scenario
Implement prototype tool called PL4X ERP configurator.P8In order to measure the prediction accuracy of the tree on product configurations currently in progress, they have used Rapid-Miner to test the tree with five such configurations. When they compared the results, they find that a correct prediction of a faulty configuration was made in 2 out of 3 casesP9The feasibility of the approach and its implementation are shown by using them with the most three common types of variability modeling approaches in the PL community.
The example presented in the paper is derived from industrial experience in ERP, to validate the feasibility and flexibility of the approach. They further applied the approach to support the configuration of privacy settings in the Android ecosystem based on numerous variability models.
 The performance of different model enactment strategies used in the approach is evaluated.P10This ERP system has been implemented in the National Research Center (NRC) (further details unavailable).
DISCUSSION
A systematic literature review was conducted to identify the different ways of applying SPLs engineering to ERP systems. Many studies have mentioned various definitions and implementation process of ERP and SPLs aspects. The review highlights several of the approaches, methods, techniques and tools needed for combining SPLs concepts with ERP systems. A considerable amount of research addresses SPLs and ERP concepts, but far fewer publications cover them both. From the business point of view, ERP implementation has some issues related to configuration and customization. As most research focused on the aspects of ERP system, there are omissions in how to solve these issues. According to the literature, the product line approach was used to either configure or customize ERP systems, or both, by using several methods with different approaches. For example Hamza and Aly in ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "DOI" : "10.1145/1964138.1964143", "author" : [ { "dropping-particle" : "", "family" : "Hamza", "given" : "Haitham", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Aly", "given" : "Gamal", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "KOPLE '10 Proceedings of the 2010 Workshop on Knowledge-Oriented Product Line Engineering", "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2010" ] ] }, "title" : "Using product line architectures to leverage systematic reuse of business knowledge: an industrial experience", "type" : "article-journal", "volume" : "1-5" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=f622306a-0625-4757-ab1e-573605d1d82c" ] } ], "mendeley" : { "formattedCitation" : "[31]", "plainTextFormattedCitation" : "[31]", "previouslyFormattedCitation" : "[31]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[31], N�bauer in ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "ISBN" : "9781450310581", "author" : [ { "dropping-particle" : "", "family" : "N\u00f6bauer", "given" : "Markus", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Seyff", "given" : "Norbert", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" }, { "dropping-particle" : "", "family" : "Stoiber", "given" : "Reinhard", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2012" ] ] }, "page" : "21-26", "title" : "Managing Variability of ERP Ecosystems : Research Issues and Solution Ideas from Microsoft Dynamics AX", "type" : "article-journal" }, "uris" : [ 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"non-dropping-particle" : "", "parse-names" : false, "suffix" : "" } ], "container-title" : "Computer Standards & Interfaces", "id" : "ITEM-1", "issued" : { "date-parts" : [ [ "2015" ] ] }, "page" : "9-19", "publisher" : "Elsevier B.V.", "title" : "Computer Standards & Interfaces Fault-tolerant context development and requirement validation in ERP systems", "type" : "article-journal", "volume" : "37" }, "uris" : [ "http://www.mendeley.com/documents/?uuid=5417bce6-5455-4cb4-9d2c-8cb17354079c" ] } ], "mendeley" : { "formattedCitation" : "[32]", "plainTextFormattedCitation" : "[32]", "previouslyFormattedCitation" : "[32]" }, "properties" : { "noteIndex" : 0 }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }[32], and Galindo in  ADDIN CSL_CITATION { "citationItems" : [ { "id" : "ITEM-1", "itemData" : { "author" : [ { "dropping-particle" : "", "family" : "Galindo", "given" : "A", "non-dropping-particle" : "", "parse-names" : false, "suffix" : "" 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product line just in ERP systems configuration. 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Furthermore, each study presents different tools and techniques in order to support variability modeling. 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Conclusion
The goal of this paper was to identify the different ways to apply the software product line application to ERP systems. To recognize this, a systematic literature review was conducted by following a search strategy and applying selection criteria and a qualification process. In the data extraction process, we found that this approach has been applied for the main ERP implementation processes, configuration and customization. The literature, however, shows the importance of product line engineering methods, techniques and tools, but there is still a lack of interest in addressing ERP engineering issues with the product line strategy. Our iterative method resulted in a final set of six different studies from which we extracted relevant elements for six research questions: (1) The ERP implementation issues, (2) the proposed method, (3) the variability model used and artifacts presented in the model, (4) the actors who benefit from the method (5) the tools, and (6) the case study used. Based on selected papers selected from the literature we noticed that product line engineering could reduce the complexity of the ERP configuration and customization issues. This item was analyzed and discussed and two scenarios have been presented to demonstrate its feasibility in accordance with our SLR results.
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Planning the review

Conducting the review

Reporting the review



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