| With the global economy, the rapid development of manufacturing enterprises in order to increase productivity and enhance competitiveness, business widely used in a variety of advanced computer applications (such as CAD, PDM, ERP, SCM, CRM, EAI and the CPC, etc.). As the international flow of products and information-sharing more and more common for a standardized products, standardized information model in the manufacturing sector is particularly important in the field.Life-cycle information model is the more advanced model of information is aimed at the realization of all the relevant information sharing among enterprises, to integrate information, and information to resolve the "isolated island". STEP standard (Standard of the Exchange of Product data) is the product of expression and information exchange referred to, it can complete information Expression of product data in support of distributed computer applications for product data sharing, different CAD / CAX system through STEP neutral file standard for data exchange. STEP standards related to products in various stages of the life cycle of product data information.Railway rolling stock is the main artery of transport, it covers parts of the species more complex structure, the use of fewer, and markets in general circulation of small, so the standardization of rolling stock parts for the purpose of modeling is to achieve information integration. In order to facilitate the study of this article will spare the entire life cycle is divided into needs analysis, conceptual design, engineering, manufacturing, support services in five phases. In accordance with the division of the stage, made accessories, including demand analysis model, the concept model, the model of the design, manufacture and service models to support the model framework to look at the various stages of conversion between the model, integrated, interoperable method. On this basis, focusing on the design of rolling stock parts information model for research. The study used the standard STEP, IDEF4 use of object-oriented modeling to build models of information. XML methods used to achieve the conversion information.In this paper STEP standards on the basis of the main parts for locomotives and rolling stock design information made a study of the following:(1) Analysis of the characteristics of the parts made for the entire life cycle of accessories coding─classification code;(2) IDEF4 the use of accessories designed to establish the model of information and research between the model conversion method;(3) The use of XML methods to achieve model;... |
