Engineering data management oriented structure hypertext approach

Because engineering data is usually in large mass and it's difficult to manage them, most former hypertext models or systems can hardly be used to manage engineering data efficiently. There are many problems left to be solved when hypertext is applied to engineering data management. This paper mainly introduces a structure data model with version control, HyVc, where structure node and version node are defined. Compared with former hypertext systems or models, this model's version mechanism is more suitable to the requirement of engineering data management. Structure node can reduce the number of nodes within a hypertext network so that the hypertext network becomes more distinct in structure and implies more knowledge and visual retrieving ability.