The W-Model for Testing Software Product Lines

Testing is one of the important means of software quality assurance. Each software development paradigm requires an appropriate test model. Software product line engineering emerges as a new software development method. This paper puts forward a new test model for software product lines, the W-model, describes two separate and closely related sub-models of domain test and application test. Key issues and activities specific to testing software product lines such as variability test and regression test are addressed and explained with an example.