Study on the Modeling Technology of the 4D Process Information Model of the Mechanic Products

According to the characteristics of the dynamic changes in the lifecycle of mechanic products and based on the 3D information model of products, this paper proposes a kind of 4D information model which can formulate the whole lifecycle of the products in accordance with the changes of time process. Making use of the descriptive method, this paper establishes the process information model based on its targets, process control and version management and studies the method which provides effective management, memory, dynamic associate and intelligent support for all kinds of data in the process control, including document, task, and process. The modeling technology of the 4D process information facing the whole lifecycle of mechanic products has a significance of guidance in strengthening the cooperation of the designers in the circumstance of internet and solving the problem of lacking the process tracing system in the development of traditional products.