Research on Product Information Integrating and Sharing for Dynamic Colla boration

Dynamic Collaboration emerges as the new trend of n et working and collaborating work in manufacturing industry, in which product infor mation sharing among allied enterprises plays very important roles in collaborat ing product development. This thesis aims at studying the integrating, contr olling and sharing mode of product information among the heterogeneous and dispe rsed environments through Internet, and proposes the information integrating/sha ring architecture based on the Product Master Model (PMM). The following are the main contents of this thesis: 1) Research on the XML based PMM model for integration and sharing of product in formation After analyzing the requirement of the allied Enterprise for the product infor mation, the XML based product master model (XPMM) is proposed as the integrating mechanism of heterogeneous and dispersed product information. The XPMM is divid ed into some sub-models: whole-life controlling model, product defining model, conception model, design model, product structure model, machining model, q uality model, evaluating model. The character and accessing approach of XPMM is discussed in detail. 2) Research on the mapping pattern and mapping rule of STEP/XML According to feature of XML Schema and STEP EXPRESS, the memory-constructing-t ree model is put forward as STEP/XML mapping pattern, which is constructed dynam ically according to the bottom-to-top reference relationship. Based on mapping pattern, the multi-layer XML/STEP mapping rule is discussed detailed including relation mapping, entity mapping, data type mapping, reference mapping and func tion mapping. 3) Research on the Product Information Integration and Sharing (PIIS) Architectu re Based on the XPMM, the PIIS architecture is proposed. The PIIS support the local and dispersed product information to be integrated and shared on the contro l of the XPMM. The architecture is divided into three layers :Applying-Obj ect-LayerData-Integration-Layer and STEP-Data-Layer. The kernel of the PI IS Architecture is this Data-Integration-Layer, which control the whole proces s of XPMM creating, the data approaching. The function and structure of every la yer is discussed too.

Dynamic Collaboration emerges as the new trend of n et working and collaborating work in manufacturing industry, in which product infor mation sharing among allied enterprises plays very important roles in collaborat ing product development. This thesis aims at studying the integrating, contr olling and sharing mode of product information among the heterogeneous and dispe rsed environments through Internet, and proposes the information integrating/sha ring architecture based on the Product Master Model (P...