关键词: 面向服务架构, 服务总线, 服务质量, 组合服务, 动态优化

Abstract: Service-oriented architecture has already become the major technology gradually in integration of application software. Service bus plays a key role in service-oriented architecture （SOA）， many focus on how to optimize the composite services dynamically according to QoS. This paper proposes a service bus called SOARBus which supports quality of service （QoS） dynamical optimization of composite services. SOARBus is composed of mainly two components. The first component is the scheduling module based on load-balancing principles to schedule the requests of composite services dynamically. The second component is the QoS-aware module that adjusts the composite services dynamically according to QoS.

Key words: service-oriented architecture （SOA）, service bus, quality of service （QoS）, composite service, dynamic optimization