OLS: An Ontology Based Information System

This paper presents a design ontology that deals with the hypermedia presentation aspects involved in the development of a semantic Web information system. The ontology is driven by two main design models: the conceptual and the application models. The application model extends the conceptual model with presenting data and inferring. During the presentation generation the input data goes through a sequence of transformation steps. Using semantic Web technology we chose to represent the models and their instances in OWL DL. Protege 3.2 (2007) and some of its plug-ins are used to develop this experiment. In this study we'll implement an ontology based information system in web environment and query this ontology through Web interface