Description
Drawing a class or sequence diagram for a design document in a general drawing tool is quietly painful: the connectors do not know what they join, renaming a class means editing every box by hand, and the exported picture is not something anyone can continue editing.
Visual Paradigm Community Edition is a modelling tool that understands UML semantics, not a drawing program. Classes, interfaces, associations and inheritance are typed objects, so renaming one updates the whole model and invalid relationships are flagged as you draw. It covers a dozen UML diagram types plus SysML, ERD and BPMN, generates DDL from an ERD and skeleton Java or C# from a class diagram. The Community Edition is free for personal and non-commercial use on Windows, macOS and Linux.
Full UML 2 coverage: Class, sequence, use case, state machine, activity and more, with elements that carry meaning rather than being shapes.
ERD to database: Generate DDL from an entity relationship diagram, or reverse-engineer an existing database into one.
Round-trip code engineering: Produce Java, C# or C++ skeletons from a class diagram, and import existing code back into a model.
SysML and BPMN: Systems engineering and business process notation are built in, so one tool covers several modelling needs.
Cross-platform and free: Installers for Windows, macOS and Linux; the Community Edition stays free for personal, non-commercial work.
Visual Paradigm Community Edition is a modelling tool that understands UML semantics, not a drawing program. Classes, interfaces, associations and inheritance are typed objects, so renaming one updates the whole model and invalid relationships are flagged as you draw. It covers a dozen UML diagram types plus SysML, ERD and BPMN, generates DDL from an ERD and skeleton Java or C# from a class diagram. The Community Edition is free for personal and non-commercial use on Windows, macOS and Linux.
Features
Full UML 2 coverage: Class, sequence, use case, state machine, activity and more, with elements that carry meaning rather than being shapes.
ERD to database: Generate DDL from an entity relationship diagram, or reverse-engineer an existing database into one.
Round-trip code engineering: Produce Java, C# or C++ skeletons from a class diagram, and import existing code back into a model.
SysML and BPMN: Systems engineering and business process notation are built in, so one tool covers several modelling needs.
Cross-platform and free: Installers for Windows, macOS and Linux; the Community Edition stays free for personal, non-commercial work.
