570 Model-Based Testing for Embedded Systems
Among the many obstacles to implement a model-based approach on a large scale in pro-
duction stream projects, the following ones are, in the authors’ opinion, especially important
in the automotive industry:
• Return on Investment (ROI) for a model-based approach is not guaranteed.
• MBD and testing, especially executable model development, are time-consuming activ-
ities. Typically, a model refers only to some aspects of the real system, and two models
of the same functionality may be essentially different. The resources (i.e., time and cost)
needed for creating a good model for other system aspects may be more than the benefits
realized.
• Sometimes the model does not address what is desired to be accomplished. ...