Generating context management infrastructure from high level context models
Karen Henricksen, Jadwiga Indulska, Andry Rakotonirainy · 2003
Abstract. The trend towards pervasive computing is driving a need for applications that are highly autonomous, as well as responsive to changes in their environments and in user requirements. Such applications are commonly termed context-aware, and are reliant on accurate information about aspects of their surroundings such as the location, goals and activities of users. Unfortunately, the construction of context-aware applications is a difficult task, and, for this reason, various infrastructures supporting the construction of such applications by assisting with the gathering, processing and dissemination of context information have re-cently appeared [1-3]. However, these are based on models of context that lack formality and expressiveness and offer little support for the design tasks associated with context-aware applications. In this paper, we present a context modelling approach that offers a means for developers to describe and program with context at a high level, without the need to consider issues related to context gathering, management or representation. We also describe a mapping process that transforms high-level context models to management systems capable of maintaining and supplying context information to applications at run-time.