Manufacturing information systems including ERP, MES, PLM, SCM, and Control System are highly are interconnected horizontally and vertically among them. So it is imperative that those systems keep and share the common/related data in the appropriate way. The various types of BOMs are the most important data sets for designing, developing and producing product in recent manufacturing environment. In particular, the discrepancy and inconsistency between EBOM and MBOM information would worse a production and customer service level, and lower a productivity in R&D. In this paper, the data issues about transforming from EBOM to MBOM are presented. And then, we propose the methods for preserving the BOM information consistently. Finally, we implement the prototype by using SOA to show the possibility for developing a real system.