一种改进的柔性工作流过程定义元模型研究

Research on modified flexible workflow process definition meta model

由于传统工作流技术无法满足时常变更的业务过程,工作流的柔性问题成为研究的热点。从WFMC的过程定义元模型中提取出连接类型和活动状态,封装成新元素,并重定义了转移条件和角色,从而形成一种改进的柔性工作流过程定义元模型。运用工作流过程定义语言对元模型主要元素进行了形式化描述,并通过一个实例说明了该模型在实践中的柔性。

As dissatisfaction at the frequently alterable business process for traditional workflow technology,the research on the flexibility of workflow has become an academic hot spot.Firstly,the encapsulated connective type and activity status are abstracted from the process definition meta-model of the Workflow Management Coalition Specification,and the transitional condition and role are redefined.This forms a modified flexible workflow process definition meta-model.Secondly,some primary elements in workflow are formalized by the workflow process definition language.Finally,an example is given to show the flexibility of this mode in practice.