Abstract: Workflow is a series of business procedures that performs automatically. Workflow engine is important in entire management system, and offers execution environment. This paper designs a workflow description language——X-WPDL, implements workflow engine centering on peers, translates workflow described by X-WPDL into a series of “execution in order” related to processing operation, offers an interface between manager and participant, discusses design of X-WPDL, structure and operation of engine, and verifies the application of the engine.

Key words: workflow, workflow engine(WE), workflow management system

摘要： 工作流是一系列自动执行的业务过程，而工作流引擎在整个工作流管理系统中处于核心地位，为工作流管理提供执行环境。该文设计了工作流描述语言——X-WPDL，实现了一个以节点为核心的工作流引擎，将X-WPDL描述的工作流过程转化为一系列与处理操作有关的“有序执行”，并提供了管理者、参与者与引擎交互的接口，讨论了X-WPDL的设计和引擎的结构、运转，验证了该引擎的应用效果。

关键词: 工作流, 工作流引擎, 工作流管理系统

CLC Number: 

• TP393