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Transitioning Legacy Assets to a Product Line Architecture



Nierstrasz, O.; Lemoine, M. ; Association for Computing Machinery -ACM-, Special Interest Group on Software Engineering -SIGSOFT-:
Software Engineering. Proceedings ESEC/FSE'99
Berlin: Springer, 1999 (Lecture Notes in Computer Science 1687)
ISBN: 3-540-66538-2
ISSN: 0302-9743
pp.446-463 : Ill., Lit.
European Software Engineering Conference (ESEC) <7, 1999, Toulouse>
Symposium on the Foundations of Software Engineering <7, 1999, Toulouse>
Conference Paper
Fraunhofer IESE ()
architecture recovery; domain-specific software architecture; reengineering; reuse; software product line

A successful software system evolves over time, but this evolution often occurs in an ad-hoc fashion. One approach to structure system evolution is the concept of software product lines where a core architecture supports a variety of application contexts. However, in practice, the high cost and high risks of redevelopment as well as the substantial investments made to develop the existing systems most often mandate significant leverage of the legacy assets. Yet, there is little guidance in the literature on how to transition legacy assets into a product line set-up. In this paper, we present RE-PLACE, an approach developed to support the transition of existing software assets towards a product line architecture while taking into account anticipated new system variants. We illustrate this approach with its application in an industrial setting.