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☆安徽董若冰问：产品数据管理系统（ＰＤＭ）和群件（Ｇｒｏｕｐｗａｒｅ）有什么区别？答：总的来说，与ＰＤＭ相关或者有功能重叠的有ＥＲＰ系统、文档管理系统和群件。下面首先谈谈群件和ＰＤＭ的区别，以后再讨论ＥＲＰ系统和文档管理系统与ＰＤＭ的相互关系。群件（例如?
☆ Anhui Dong Ruobing Q: Product Data Management System (PDM) and Groupware (Groupware) What is the difference? A: In general, there are ERP systems, document management systems and groupware related to or overlapped with PDM. The following first talk about the difference between groupware and PDM, and later on the ERP system and document management system and the relationship between PDM. Groupware (for example?