An Object-Oriented Version Model for Context-Aware Data Management

Context-aware computing is a major trend in mobile computing, pervasive computing and web engineering. Several models, frameworks and infrastructures have been developed to represent, process and manage context. While most of these approaches support the adaptation of application logic based on context, the requirements of context-aware systems in terms of data management have received little attention. This is most apparent in the field of web engineering as many web sites are data-intensive and require context-dependent content adaptation to support internationalisation, personalisation and multiple channels. We present a version model featuring alternative versions for context-aware data management and query processing that has been integrated in an object-oriented database system. Finally, we also describe the implementation of a mobile tourist information system based on this system.

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