Context representation formalism and its integration into context as a service in clouds

Context Management technology itself is not novel and ICT companies are already trying to find a technically feasible solution and appealing marketing usage of the context-awareness. However, after many years of technology scouting and academic scrutiny within this still innovating area, the usage of the personalized and context-aware services is still limited due to totally new business models that shall be put in place. The context information available in the real world from many potential context sources shall be handled as a near real-time, efficiently processed by many devices and be interoperable among different actors dealing with the context. Therefore among a comprehensive context management framework and its efficient representation the context information shall be exposed in an way easy to use and consume. Even more better is if the context information and data are embedded within service clouds using frontier technology of cloud computing embedding not only the tools for a reach, flexible and scalable service creation but also integrating context knowledge and an efficient real-time data management. A solution integrating the context information in the clouds with its efficient context representation and publish-subscribe web service based interface is described in this paper.