Abstract:

The key of performing CE(Concurrent Engineering) is to provide an efficient concurrent design environment.The integrated design framework is the basic supporting structure for concurrent design framework.The most important concept in the paper is design object which is the aggregation of the product data.The model of integrated design framework and hierarchy structure based on product data management and design flow management is studied, which consists of four layers: tool layer, framework layer, design object layer and design data layer.Also, an OOT D data modeling method is used to model the product data management and design flow management.The main content of the model of product data management is design object and their relationship, version management mechanism and design transaction management.The design flow management is realized by organizing and scheduling the design tools according to some strategy.

Key words: concurrent engineering, integrated framewo rk, p roduct data management, design flow