The Expressing of BOM Data Structure Based on STEP

Directed to the importance of BOM research to the procedure and effects of informationizing industries,this research,based on the practical needs of the implied and exemplary project of CIMS in a Power Co.,Ltd,is to express BOM data structure based on the partial entities of STEP.It first introduces the two integrated resource parts: product_definition_schema and product_structure_schema,which are needed in expressing BOM data structure.Then,through an example of a mechanical assembly product,it illustrates the procedure of explaining and expressing BOM data structure based on STEP.