CAWET: A Tool of Context-Aware Workflow with Hand-Held Devices

Abstract

Hand-held devices are rapidly becoming a common technology at work, school, and play. The technologies related with hand-held devices have widely applied to the areas of ubiquitous computing or embedded computing. In recent years, context-aware computing is rapidly developing and can bring important benefits such as interaction with computation by explicit acts of communication and implicit context. In this paper, we present CAWET (Context-Aware Workflow Editor Tool), a context-aware, adaptive and personalized development tool that can edit userpsilas current context information in ubiquitous computing environment through hand-held devices. In order to enhance the support offered by hand-held devices to users, enhanced convenience, more services and functionalities will be added into an initial workflow scenario without interfering workflow services. CAWET architecture provides context-aware information by using uWDL document as the context, which is not only used to express context data but also relation information among services into the fields of its nodes. The suggested CAWET uses an algorithm for context comparison between context sub-tree and userpsilas situation information. The algorithm selects a context that has values and types entirely equal to those of the userpsilas contexts.