A sophisticated software modeler. StarUML 2 is compatible with UML 2.x standard and supports totally 11 kinds of UML diagrams: Class, Object, Use Case, Component, Deployment, Composite Structure, Sequence, Communication, Statechart, Activity and Profile Diagram. You can create Entity-Relationship Diagrams (ERD). ERD is one of the most frequently used diagram for database modeling. Our ERD is based on crow’s foot notation which is much easier and readable than Chan’s notation. Creating elements and connecting them are somewhat tedious tasks. StarUML 2 supports many shorthands in Quick Edit to create elements and relationships at once such as sub-classes, supporting interfaces, etc.