Application of XML for manufacturing quality information representation based on STEP

Quality information required in manufacturing processes is tightly related to design, which ensures the realization of design quality objectives in manufacturing processes. To process manufacturing quality information for design easily and effectively, it is very necessary to represent such information consistently. Firstly, by discussing the characteristics of STEP and XML in information representation, representation framework of manufacturing quality information based on STEP and XML is proposed. Secondly, EXPRESS models of structural manufacturing information are presented. Thirdly, tree structure of process information is analyzed. Fourthly, mapping EXPRESS model of structural manufacturing quality information into XML schema by the methods of early bound and late bound is illustrated in detail. Finally, the unified representation model of manufacturing quality information based on XML is given, and also definition and application process of XML schema of manufacturing quality information are demonstrated.