关键词: 产品数据管理, 权限管理, 角色的访问控制模型, 产品数据管理类模型

Abstract: To realize authorization management functions in Product Data Management (PDM) system and to improve efficiency in authorization query and authorization control during system operation process. In the light of authorization management of function modules in PDM system, role access control model was constructed. Through using the set of PDM class-oriented access control list and the set of object-oriented access control list, the access control of user authorization was completed. The inheritance methods of PDM managerial classes and the distribution modes of PDM managerial classes' operations were analyzed. The creation and operations inheritance of PDM managerial subclass were achieved. Through analyzing restriction relationships among operations, the restriction control management between the operations of PDM classes and roles was conducted. Then rules for authorization conferment and authorization control were provided. The methods of authorization setting were brief and standard, and the operation efficiency of PDM system was improved. The secondary development of PDM authorization management was also simplified.

Key words: product data management, authorization management, role access control model, product data management managerial classes model