Implementation of interactive database system for STEP-geometric data from EXPRESS entities

Today information systems have become the key factor of current computer based engineering applications. So database are designed to support data storage, processing, and retrieval activities related to data management, and they are the key to implementing engineering information models. However, the current mainstream databases are mainly used for business applications, some new engineering requirements challenge today´s database technologies and promote their evolvement. The main focus of this paper is to determining the requirements of a database for STEP-Geometry entities that supports integrity validation of versioned design artifacts through effective management of evolving constraints. In this paper develop a tool for separate and store the geometric data from STEP file using EXPRESS entities. Finally this tool operates around a version model that uses a well-defined configuration management strategy to manage and storage of geometric data.