一种基于模式的服务工作流个性化定制方法

Web Service Workflow Customization Based on Pattern

针对业务复杂多变,用户目标逐步明确的特点,提出一种面向用户需求的动态服务工作流构建和实例化方法。首先构造服务流程模式,将业务知识和工作流相结合,作为服务工作流的知识描述,实现对业务领域知识和与之适应的服务流程的抽象和规范;基于服务流程模式,利用多层次匹配构造多粒度抽象服务组织模型,实现服务工作流的业务逻辑定制;然后,利用Qo S分析进行具体服务选择,实现服务实例定制,最后通过一个应急处理示例来说明此方法的应用。

For the complexity of business and the uncertainty of user＇s requirement,a user-oriented dynamic service workflow building and instantiation method is proposed.Firstly,Service Process Pattern constructed as knowledge description of service workflow.It abstracts and specifies the business domain knowledge and the associated service processes.Based on the service process pattern,a multi-granularity service organization model is built by multi-layer goal-pattern matching to realize the business logic customization.Then,Quality of Service analyzing is made to select the proper concrete service in order to realize the service instance customization.Finally,this method is illustrated by an emergency treatment example.