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Issue No. 04 - July-Aug. (2012 vol. 38)
ISSN: 0098-5589
pp: 737-754
Marco Tulio Valente , University of Minas Gerais, Belo Horizonte
Virgilio Borges , COTEMIG, Brazil
Leonardo Passos , University of Waterloo, Waterloo
The extraction of nontrivial software product lines (SPL) from a legacy application is a time-consuming task. First, developers must identify the components responsible for the implementation of each program feature. Next, they must locate the lines of code that reference the components discovered in the previous step. Finally, they must extract those lines to independent modules or annotate them in some way. To speed up product line extraction, this paper describes a semi-automatic approach to annotate the code of optional features in SPLs. The proposed approach is based on an existing tool for product line development, called CIDE, that enhances standard IDEs with the ability to associate background colors with the lines of code that implement a feature. We have evaluated and successfully applied our approach to the extraction of optional features from three nontrivial systems: Prevayler (an in-memory database system), JFreeChart (a chart library), and ArgoUML (a UML modeling tool).
Software product lines, virtual separation of concerns, refactoring tools, annotations
Marco Tulio Valente, Virgilio Borges, Leonardo Passos, "A Semi-Automatic Approach for Extracting Software Product Lines", IEEE Transactions on Software Engineering, vol. 38, no. , pp. 737-754, July-Aug. 2012, doi:10.1109/TSE.2011.57
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