Abstract:

This paper shows a technique that allows adaptive user interfaces, span- ning multiple devices, to be rendered from the task specification at runtime taking into account the context of use. The designer can spec- ify a task model using the ConcurTaskTrees Notation and its context- dependent parts, and deploy the user interface immediately from the specification. By defining a set of context-rules in the design stage, the appropriate context-dependent parts of the task specification will be se- lected before the concrete interfaces will be rendered. The context will be resolved by the runtime environment and does not require any man- ual intervention. This way the same task specification can be deployed for several different contexts of use. Traditionally, a context-sensitive task specification only took into account a variable single deployment device. This paper extends this approach as it takes into account task specifications that can be executed by multiple co-operating devices.