A Context-Aware Services Development Model

Currently the context models focus more on the expression ability rather on the automatic deployment and execution capability. Also a context aware platform is required to support the modeling and automatic deployment and execution of the context aware system. This paper aims to build an executable context model and define the architecture of the context aware system as well. Firstly a context-aware services development model is proposed. And then the architecture of the context-aware system is defined. The lifecycle of such system includes two phase, namely design phase and running phase. In service design phase, the development model can describe user´s context, situation, and services´ configuration information. While in running phase, the execution engine can build the instances of a model and navigating the execution of the model, namely, receive the context changing events, manage the user´s Scene transitions and invoke the context-aware services according to the scene´s configuration. In addition the model is exemplified with an elder health monitoring model.