Smart phones show increasing capabilities for context-aware applications. The development of such applications involves implementation of mechanisms for context acquisition and context adaptation. To facilitate efficient use of the device's resources and avoid monitoring the same context changes from multiple points, it is necessary that applications share the context acquisition mechanism. In this paper, we intend to develop a generic context acquisition engine which is capable of context capturing, composition and broadcasting. By deploying the engine on a mobile device, context changes are monitored from single point and disseminated to various context aware applications running on the same device. As a proof of concept, the context acquisition engine has been implemented on the Android platform.
Using mobile devices enhances overall collaboration and communication between team workers. Co-workers can collaborate and share content regardless of their location. Workflow management is a widely accepted technology that supports collaboration; however, existing workflow approaches provide only a limited support for content management. Moreover, constantly changing collaborators' contexts and needs demand more adaptable and flexible workflows. The aim of this paper is to examine how collaborative workflows can be adapted for mobile devices, be capable of dealing with current collaborators' context and support content manipulation. As a result, a conceptual reference framework for the definition, management and execution of mobile context-aware content-centric workflows is introduced.
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