TEMPORAL CONTEXT INFORMATION MODELING AND MANAGEMENT SCHEME USING EXTENDED ONTOLOGY MODEL FOR CONTEXT-AWARE SYSTEMS

摘要

PURPOSE: A temporal context information modeling and a management scheme using an extended ontology model for context-aware systems are provided to store and temporally-change context information continuously based on past context information. CONSTITUTION: A context information query processor(120) searches a database based on a query request received from the outside and outputs query result data. When a certain change happens in the database, a context information event processor(150) generates a context information event. A context information rule/inference processor(130) provides a rule processing function based on the preset rule information when the context information event occurs.