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Model-checking and Model-based Testing of Automotive Embedded Systems: Starting from the System Architecture


Licentiate presentation

Start time:

2014-12-19 13:15

End time:

2014-12-19 15:00


Gamma, MDH, Västerås

Contact person:


The public defense of Raluca Marinescus licentiate thesis in Computer Science and Engineering will take place at Mälardalen University on December 19, 2014, at 13.15 PM in room Gamma, Västerås.

Title: “Model-checking and Model-based Testing of Automotive Embedded Systems: Starting from the System Architecture”.  

The examining committee consists of Associate Professor Bernhard Aichernig, Graz University of Technology; Adjunct Professor Luigia Petre, Åbo akademi; Associate Professor Daniel Sundmark, MDH; Among the members of the examining committee, Associate Professor Bernhard Aichernig has been appointed the faculty examiner. Reserve; Professor Ivica Crnkovic, MDH.


Embedded systems, which are computer systems with dedicated functionality and integrated within a larger mechanical or electrical system, are widely used nowadays to provide complex functions to a wide range of electronic systems found, for example, in mobile phones, cars, or medical equipments. In the automotive industry, older technologies, like mechanical and hydraulic systems are being replaced by embedded systems to provide highly complex functions like cruise control or automatic braking. In this context, the development process of such systems requires a revised process that addresses their particular needs. One possible solution is the use of architectural (structural) models, which are graphical representations of the system’s structure as a set of interconnected components. An important aspect in such models is related to components and their communication with neighboring ones. One needs to ensure that, e.g., once the brake pedal of a car is pressed by the driver, it will stop the car within a determined amount of time. Another aspect includes how a component “computes” its output given a specific activation pattern. For instance, a braking system equipped with ABS should ensure that the computed braking force will not lock the wheel. This last aspect is called the component’s behavior.

In this thesis, we focus on integrating the structural and behavioral aspects of the system described in a language called EAST-ADL, used in the automotive industry. Our work provides new opportunities for the analysis of the integrated structure and behavior of the automotive systems. The analysis methods that we use are mathematically-based techniques that can be used to provide guarantees about the correctness of models of automotive embedded systems. In this work, various extensions of the rigorous analysis tool called UPPAAL are used to verify all possible behaviors of the integrated system models. However, since the software implementation of the analysis model is the one deployed on the vehicle, we also propose a method to test the implementation by using the same framework as in the above analysis. The combination of the two methods, analysis and testing, should increase the confidence in the system’s correctness. 

Raluca Marinescu,