Adaptive fuzzy-valued service selection

摘要: Service composition concerns both integration of heterogeneous distributed applications and dynamic selection services. QoS-aware enables a service requester with certain QoS requirements to classify services according their guarantees. In this paper we present method that allows for fuzzy-valued description parameters. Fuzzy sets are suited specify the preferences raised by such as 'response time must be lower possible cannot more 1000ms' approximate estimates provider can make on capabilities its like 'availability is roughly between 95% 99%'. We propose matchmaking procedure based similarity measure that, given specifications parameters providers, selects most appropriate among several functionally-equivalent ones. also devise dynamical update offers means runtime monitoring actual performance.