基于QoS优化的面向服务流程分解方法

QoS-based Optimized Service-Oriented Process Decomposition Method

面向服务的业务流程分解是构建面向服务系统的前提。文章分析了复杂业务过程的QoS因素及其计算,提出一种基于QoS的服务流程分解方法。该方法首先应用OWL-S(Ontology Web Language for Services)进行流程建模,再对OWL-S模块进行归并、组合,将复杂业务流程转化成由几种典型结构构成的服务组合形式,通过服务组合和流程QoS约束的计算,实现流程分解的优化。最后通过一个汽车贷款审批的实例验证了分解方法的有效性。

Service-Oriented Business Process Decomposition is the premise of building a service-oriented system. This paper analyzes the complex business processes QoS factors and computing, proposes a QoS-based service process decomposition method. This method firstly applies OWL-S （Ontology Web Language for Services） for process modeling, and then groupes and combines OWL-S modules, transfers complex business processes into combination of services constituted by several typical structures, through calculation of service combination and process Qos constraint to achieve the optimization of process decomposition. Finally, it is demonstrated by an example of a car loan approval.