Information Engineering (IE) and Integration Definition for Information Modeling (IDEF1X) notation data diagrams have semantics and notations that meet particular specifications.
You can use IE and IDEF1X notation data diagrams to examine, understand, and modify existing database applications and to design new database applications.
For example, you can create IE and IDEF1X notation data visualization diagrams of existing database applications from source code to understand schemas created by database administrators and how Enterprise JavaBeans™ (EJB) entity beans are mapped to database tables. You can use IE and IDEF1X notation data diagrams to create your own context to understand, collaborate, and design using a subset of the existing data objects in an application. You can modify existing data objects in IE and IDEF1X notation diagrams and update their underlying source code from the diagram editor. You can also create IE and IDEF1X notation data diagrams to develop new database applications.