Software Ideas Modeler is a lightweight and powerful CASE tool. It helps you to describe and design your software and processes using UML 2.4, BPMN 2.0, SysML 1.3, ERD, flowcharts and other diagrams.
Main features:
Intuitive and quick drawing of diagrams
All UML 2.4 diagrams
All BPMN 2.0 diagrams
All SysML 1.3 diagrams
Flowcharts, Data Flow Diagrams, Entity Relationship Diagram (Crow Foot/Chen), CRC Cards, User Interface, Hierarchical Task Analysis, Entity Life History, Robustness Diagram, Concurrency Diagram, Venn Diagram, Mind Map