The Research And Design Of Service Composition Platform Based On SOA

With the development of productive forces and science and technology, the growth of modern industrial has gradually shifted into service innovation. And the world economy has enterd the service age from the era of the industrial age. Services science as an integration of traditional science and technology that services related, is to improve the service industry. Service-Oriented Computing (SOC), which has been widely applied in the fields such as smart grid, telecomunications, medical services, e-commerce, is a hot topic in both academia and industry. And Service-Oriented Archetecture (SOA) as the suggested implementation is the significant milestone in distribute computing and system integretion, and is more emphasis on the alignment between IT and business, and has obvious features of openness, agility, standardized.This thesis tries to research and practice on the problem of servcie composition, and foucas on the field of archetecture, service modeling, service composition method and service composition validation. The main works and contribution are list below:By researching the Service Component Archetecture(SCA) and Business Processing Excuting Language(BPEL) specification, the thesis designs and implememts the framework of human interaction service based on SCA, which combines tradition web service and human activities seamless, and improves the scope and capacity of service compositon.The thesis designs and implements the dynamic service composition which enhances the flexibility and scalability of service composition by using the method of services interception and rule-based reasoning.The thesis takes Petri-net as a formalized approach to model and analyse service composition, and proposes algorithms for data race detection, which enhance the reliability and correctiveness of service composition. The thesis designs and implements the service composition platform and a performance assessment application based on the platform. The platform covers the service model, service assemble, service deploy and service management stage of the whole life-circle in SOA and also implements the research of the thesis. The application shows the value of the platform.