Future Driving Assistance Systems (DAS) will have to react to changes within\nthe system at runtime. This might be the case in Car-to-X systems where the availability of\ncommunication partners changes dynamically. Another example are systems like DAS for\ntruck and trailer combinations where a trailer might be disconnected and replaced by another\none several times a day. State-of-the-art DAS are not capable of handling these runtime\nchanges. In our approach we make usage of the principles of Service-orientation to generate\nself-adaptive DAS on architectural level. But this technical approach requires the definition\nof a development process that fits into the practices within the automotive industry. This\npaper introduces SOMA4DDAS, a model-based development process based on the UML\nprofile SoaML. SOMA4DDAS describes a tri-phase procedure to transfer an idea for a DAS\ninto a detailed specification of the application and the Services involved. These phases are\nintegrated into the ââ?¬Å?core process for system and software developmentââ?¬Â (CPSSD), a standard\nprocess within the automotive industry. The paper illustrates the benefits of this approach by\ndeveloping a truck and trailer DAS consisting of 13 different Services.
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