Possession System : Middleware for Adaptive Collaborative Applications

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  • グループウェアツールキット Possession System:Middleware for Adaptive Collaborative Applications
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Abstract

In this paper we describe the design and implementation of a middleware system named Possession System.The system is designed based on Possession Model which provides users with a consistent view of application components networked sensors and distributed devices by introducing two separated abstractions:Body and Soul.Possession System realizes a simple framework to deal with adaptation of distributed collaborative applications by changing relationship among Bodies and Souls.Furthermore it enables users to interact with system components with a simple operation named possession.Distributed collaborative applications built on top of our middleware realize adaptive behavior which is achieved by a mechanism combining system events with various behavioral changes of application components including the migration of components.The middleware is applicable to adaptive systems in mobile and ubiquitous computing environment where unpredictable changes in available computing resources device configuration and geographic location frequently occur.We describe how collaborative applications using our middleware adaptively behave.

In this paper,we describe the design and implementation of a middleware system named Possession System.The system is designed based on Possession Model which provides users with a consistent view of application components,networked sensors,and distributed devices by introducing two separated abstractions:Body and Soul.Possession System realizes a simple framework to deal with adaptation of distributed collaborative applications by changing relationship among Bodies and Souls.Furthermore,it enables users to interact with system components with a simple operation named possession.Distributed collaborative applications built on top of our middleware realize adaptive behavior,which is achieved by a mechanism combining system events with various behavioral changes of application components including the migration of components.The middleware is applicable to adaptive systems in mobile and ubiquitous computing environment where unpredictable changes in available computing resources,device configuration,and geographic location frequently occur.We describe how collaborative applications using our middleware adaptively behave.

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