Pacestar UML Diagrammer

Pacestar UML Diagrammer screenshots

Creates activity diagrams, class and object diagrams and communication diagrams
Workspace Options
Pacestar UML Diagrammer 6.2 : Workspace Options

Alternative downloads

DirectSOFT - Programming
Controls and programs various PLC devices created by DirectLOGIC.
Tersus Visual Programming Platform
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Great UML tool with a complete set of diagrams.