PDM中文档并发访问控制模型研究
首发时间:2008-11-03
摘要:针对传统PDM在设计过程中由于数据交互范围有限引发的数据不一致问题,提出了面向产品设计的文档并发访问控制模型。首先,采用面向对象的方法建立了面向产品设计的文档管理模型;其次,通过对产品设计过程中文档冲突根源的分析,建立了文档并发访问控制机制包括控制锁管理、冲突监控管理;在此基础上构建了文档并发访问控制模型;最后通过系统应用实例,对所提出的模型进行了验证。
关键词: 产品数据管理(PDM) 并发访问控制 文档管理 冲突 锁
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Research of a document concurrency access control model
Abstract:Aiming at solving the data conflict of PDM initiated by the limiting of the mutual exchange of product data in product concurrent design, the document concurrency access control model oriented to product design is put forward. First, the document management model oriented to product design is built by using object-oriented technology; Second, the concurrency access control mechanism of document is built through analyzing the root cause of document information conflict in the process of product design, including access control lock management and monitoring of conflict management. On this basis, the document concurrency access control model is constructed. Finally, through the application of the system, the proposed model is validated.
Keywords: product data management(PDM) document management concurrent access control conflict
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