Abstract: In view of the complexity of manufacturing information structures and the difficulty of conversion among different structures in system integration, a conversion method of heterogeneous manufacturing information is proposed. Based on the analysis of manufacturing information, a unified manufacturing information model is built to describe respectively the information of materials, processes, parts and resources. With the support of this model, a structured expression of manufacturing information is presented. Different kinds of information mapping processes are analyzed, and two groups of arithmetic operators—the nodes/attributes arithmetic units and the condition arithmetic units—are defined. An example is used to explain how the operators work during the process of information mapping. A message-oriented middleware based integration framework is proposed, and the application of the mapping method in the framework is discussed. The proposed study is applied to an aviation enterprise and achieved satisfactory results, which illustrate the validity and feasibility of the method.

Key words: information mapping, structural conversion, information sharing, integration, structured expression