Research of a Goal-Driven Architecture in Ubiquitous Environments

In ubiquitous environments, an application should adapt its behaviors in real time depending on its context and user¿s needs that can be described by the notion of high-level goals. In this paper, goals are used to guide the automatic assembly of a context-aware application from service components on the fly. A lightweight architecture LCASOA based on OSGi (Open Services Gateway Initiative) is proposed to resolve goals, as well as support context acquisition, discovery and reasoning. It also provides a sophisticated service composition mechanism for the service-oriented architecture. A Context Pair Language and the production rule are used as semantic basis to model and express contextual information and goals. A prototype for telematics system is developed to demonstrate the schema´s usefulness.