MPLM - MaTeLo product line manager: [relating variability modelling and model-based testing]

The diversity of requirements elicited from different customers leads to the development of many variants. Furthermore, compliance with safety standards as mandated for safety-critical systems requires high test efforts for each variant. Model-based testing aims to reduce test efforts by automatically generating test cases from test models. In this paper, we introduce variability management to usage models, a widely used model-based testing formalism. We present an approach that allows to derive usage model variants from a desired set of features and thus generate test cases for each variant. The approach is integrated in the industrial model-based testing tool chain MaTeLo and exemplified using an industrial case study from the aerospace domain.