Seamless Cross-Application Workflow Support by User Interface Fusion

In a mobile and ubiquitous computing environment, it becomes evident that users perceive tasks not as connected to some speci c application, but rather to some special context. Consequently, borders between applications providing distinct features are blurred and programs need to be interwoven. Features belonging to the same task or work ow need to be presented together. This presentation depends on the current application and user context, but also on the capabilities and constraints of the execution environment. In a ubiquitous computing environment, devices di er in display capabilities, input-output-interactions and user habits. This paper identi es the problem of disruptive cross-application work ows in ubiquitous computing and proposes dynamic user interface fusion to support the user in handling such work ows. In addition, a framework for dynamic user interface fusion is proposed.

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