QoS-based testing and selection of semantic services

Abstract

The importance of context-awareness is constantly increasing. Users want systems to react dynamically to their current context (e.g. their location). For emerging home service platforms, this represents a key element, as it allows systems to increase the users' comfort tremendously by acting on sensed and deducted situations. As such systems feature a lot of dynamic interaction between services, it has to be ensured that service selections and bindings simply work. This paper proposes an approach for QoS-based testing and selection of semantic services, which employs a service tester that uses genetic algorithms to check and monitor QoS properties. These properties are used to complete the semantic descriptions of services running on the platform, which are managed by a semantic service registry.