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Toward an OSGi-based infrastructure for context-aware applications

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3 Author(s)
Gu, T. ; Sch. of Comput., Nat. Univ. of Singapore, Singapore ; Pung, H.K. ; Zhang, D.Q.

Applications and services must adapt to changing contexts in dynamic environments. However, building context-aware applications is still complex and time-consuming due to inadequate infrastructure support. We propose a context-aware infrastructure for building and rapidly prototyping such applications in a smart-home environment. This OSGi-based infrastructure manages context-aware services reliably and securely and efficiently supports context acquisition, discovery, and reasoning. A formal, ontology-based context model enables semantic context representation, reasoning, and knowledge sharing. We propose an ontology-based context model that leverages Semantic Web technology and OWL (Web Ontology Language). OWL is an ontology markup language that enables context sharing and context reasoning. Based on our context model, we also propose a service-oriented context-aware middleware (SOCAM) architecture, including a set of independent services that perform context discovery, acquisition, and interpretation.

Published in:

Pervasive Computing, IEEE  (Volume:3 ,  Issue: 4 )