A process to increase the model quality in the context of model-based testing

In the past years model-based testing (MBT) has become a widely-used approach to the test automation in the industrial context. Until now the application of MBT has been limited to the software quality engineers with very good modelling skills. In order to guarantee the completeness of a model and to increase its precision there is a need to allow the usage of the approach by other project stakeholders such as requirements engineers as well as software quality engineers with a limited modelling experience. In this contribution we share the challenges discovered during the several years of the application of a certain MBT technique in a SCRUM project with particular regard to the definition of precise and complete models. A process which involves the entire software project team into the model definition starting at the very early stages of product development is presented along with its concrete implementation. First experiences with the application of the process in a particular project are presented¹.