An algebra of product families
Software and Systems Modeling (SoSyM)
Model based testing of an embedded session and transport protocol
TestCom'07/FATES'07 Proceedings of the 19th IFIP TC6/WG6.1 international conference, and 7th international conference on Testing of Software and Communicating Systems
Obsolete software requirements
Information and Software Technology
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Software product line development is a compromise between customer requirements, existing product line architectural constraints and commercial needs. Managing variability is the key to a successful product line development. Product line models of requirements and features can be constructed that contain variation points. New products can be driven by making requirement selections from a product line model of requirements but as the product line evolves selections are constrained by the design of the existing product line architecture and the cost of making these changes. We present a set of rules that map the selection constraint values of requirements to the selection constraint values of features which in turn map on to the selection constraint values of architectural assets. We illustrate the application of the rules using a worked example.