A powerful yet easy-to-use UML diagram drawing program.
Creates call flows & UML sequence diagrams from textual inputs.
Create visual representation of processes, organization, mind map, etc.
Hardy Data Systems
The Traffic Light is traffic, billing, and accounts receivable package.
Faculty of Management Science and Informatics, University of Zilina
It's aimed towards diagram types commonly used by people involved in IT.
Diagram Designer is a graphics editor tool to edit graphical data.
The UML stencil for Visio supports complete UML, SoaML and other UML profiles.
Gene Codes Corporation
Up to 12 different metrics are presented with a traffic-lights system.
Umbrello UML Modeller is a Unified Modelling Language (UML) diagram program.
Change Vison, Inc.
It lets you draw UML, ER, Flowchart, CRUD, Data Flow Diagram.
Adrian & Frank Buehlmann
Fast and Lightweight UML Diagram Editor for Windows 2000, XP and Vista.
It is the premiere eye-diagram package available for real-time oscilloscopes.
TransModeler is a powerful and versatile traffic simulation package.
Visual Paradigm International Ltd.
VP-UML Community Edition (VP-UML CE) is a free UML drawing tool.
UML modeling tool with UML 2.4 support and round-trip Python, ADA, Java, C/C++...
Poseidon for UML is a great UML tool with a complete set of diagrams.
Microgold Software Inc.
WithClass is a rich featured UML Modeling Tool to draw UML Diagrams.