Edraw is a very easy-to-use and intuitive database design tool and Express-G diagram tool which can save you hundreds hours of work.
Edraw is not only an excellent tool for database & ER Diagram, but also one that allows you to reverse engineer already existing database structures, create detailed HTML or PDF reports.
Free download Express-G Diagram Software
You can also use Edraw to draw Chen ERD, Database model diagram, Express-G, Martin ERD, ORD Diagram and a lot more.
EXPRESS-G diagram is a graphical modeling notation developed within STEP and used for IFC definition. It is used to identify classes, the data attributes of classes and the relationships that exist between classes.
EXPRESS-G is directly related to the EXPRESS data definition language. That is, everything that is drawn in EXPRESS-G can be defined in EXPRESS. However, not everything that can be defined in EXPRESS can be drawn in EXPRESS-G.Tweet