Centre for Telematics and Information Technology, CTIT
Abstract
The design process is structured into a preparation and an execution phase. In the preparation phase, designers identify (and, when necessary, define) the required levels of models, their abstract platforms and the modelling language(s) to be used. In addition, a designer may also identify or define transformations between related levels of models. The results of the preparation phase are used in the execution phase, which entails the creation of models of an application using specific modelling languages and abstract platforms.\ud
The main aspects of the approach are illustrated with a case study involving the design of context-aware mobile services. We define three levels of models: a platform-independent service specification level, a platformindependent service design level and a platform-specific service design level. Particular attention is given to the representation and transformation of behavioural aspects of service designs