An Ontology-Based Context Model for Building Context-Aware Services

One of the most important points in context-aware computing is to build a reasonable context model. Currently, many models were not built in a common structure. It is hard to build other models depending on the existing ones. In this paper, we build a common ontology-based context model with Web Ontology Language (OWL), which provides an efficient and convenient way of ontology-building by adding domain-specific concepts into this common model. We show the structure of the model and explain the main concepts of it. With the common model, we propose our solutions to solve the problems of position and context history that may exist in the process of modeling a specific domain. Finally, we show a context model of Beijing Capital International Airport (BCIA), which was built on the common model. A simple reasoning test is run on the BCIA model with Semantic Web Rule Language (SWRL).