You can use data diagrams to visualize and edit data projects.
Opening and deleting data diagrams
You can open or delete data diagrams from the Data Project Explorer and open read-only overview diagrams from the Database Explorer.
Changing data diagram properties
You can change data diagram properties in the Properties view for Information Engineering (IE) notation, Unified Modeling Language (UML), or storage diagrams.
Working with shapes and connectors
You can change the appearance of shapes and connectors and reposition them to meet your data project needs.