This paper analyzes the extensibility of the workflow reference model from WFMC, then presents a extensible workflow meta model.
文章分析WFMC工作流参考模型的可扩展性，提出了一个可扩展的工作流元模型。
Through the hierarchical research of workflow process model, it is put forward three levels of workflow process models: meta model level, model level and control model level.
对工作流过程模型进行分层研究，提出了三层架构的工作流过程模型：元模型层、模型层和控制模型层。
In the 4th chapter, we build a simple high-level workflow modeling language-M4L, which is used to describe the plat independent model based on multi meta-model.
第四章，构造一个简单的高层次描述语言m4l，使用它描述基于多元模型的平台无关的工作流模型。
Then the paper gives the details of XPDL and workflow meta-model, and analysis the core mechanism of workflow engine.
然后集中阐述了工作流元模型和工作流过程定义语言XPDL，重点分析了工作流引擎的理论和核心调度机制。
A three-dimensional workflow meta-model is presented, which is composed ofprocess meta-model, organization meta-model and data meta-model.
设计给出了一个由过程元模型、组织元模型和数据元模型构成的三维工作流元模型。
A three-dimensional workflow meta-model is presented, which is composed ofprocess meta-model, organization meta-model and data meta-model.
设计给出了一个由过程元模型、组织元模型和数据元模型构成的三维工作流元模型。
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