关键词: 工作流管理, 模型, 产品生命周期管理, 产品数据管理

Abstract: A workflow management functional model associating lifecycle management with workflow management was proposed. The new model could build a corresponding workflow for each lifecycle state, and made the lifecycle-managed object (documents, parts and so on) in the different state be managed by different workflow process. As a result, a new workflow management mode was formed in which the object associateed with the lifecycle object and the workflow process associated with the lifecycle state. Then the former complicated workflow could be disassembled to the simple lifecycle phase workflow. Furthermore, according to the least permission principle of access control, by integrating the access control policies and the lifecycle states, a special access control definition method was obtained based on the single state of object and this was a supplement to the general access control based on all states of object. In addition, to improve the flexibility of the task assignment, two role parsing methods were presented, which were"model-role" and "workflow-lifecycle-role".

Key words: workflow management, model, product lifecycle management, product data management