基于面向服务架构的调度命令系统模型开发研究

首先介绍了面向服务的架构(SOA)的体系结构和有色Petri网的概念;然后,使用SOA的方法,通过对调度命令系统业务流程的梳理,提取出调度命令系统的一组服务模型,形成服务总线模式的调度命令系统的SOA架构;最后,以调用下达命令服务为例,将系统拆分为服务提供者、服务请求者和服务总线三个组件,再将服务总线组件拆分为接入访问组件、权限认证组件、服务路由组件和消息转换组件,利用有色Petri网在动态建模方面的优势,分别对其进行建模,详细说明了其内部流程.SOA架构提高了调度命令系统的灵活性和可扩展性,结合有色Petri网对系统内部结构和控制逻辑的形式化描述,这种架构方法与建模语言相结合的方法对调度命令系统的开发有一定的指导意义.

SOA-based model development of dispatch command system

This paper introduced the concept of Service Oriented Architecture (SOA) architecture and Color Petri Nets ( CPNs). Then, it abstracted a set of service models and forms the service-bus-based SOA architecture by using SOA method and carding the operation process of dispatch command system. Finally, taking the invoking sending command service for example, it divided the system into three components: service provider, service requester and service bus, and further divided service bus into four components: access, privilege, routing and translation. It established models for each component using CPNs which have advantage on dynamic modeling and elaborate on the inner processes. SOA improved the flexibility and extendibility of dispatch command system and CPNs described inner structures and control logic. This method of combining architecture and modeling language is to guard the development of dispatch command system.