Context aware Modeling and Services Implementation With Event Driven in Ubiquitous Computing Environment
Hyoung-Sun Kim, Hyun Woo Kim, Aekyung Moon, Jun-Myun Cho, Chung-Sung Hong · Journal of Internet Computing and services · 2006
Context aware computing is an emerging paradigm to achieve ubiquitous computing environments by enabling computer systems to understand their situational contexts. A context aware system uses context to provide relevant information and services to the user depending on the user's task. In this paper, we propose an ontology based context aware modeling methodology that transmits low level contexts acquired by directly accessing various sensors in the physical environments to high level contexts. With these high level contexts, context aware application can provides proactive and intelligent services using ECA (Event Condition Action) rules. We implemented a presentation service in smart office environment.