Astah*
Astah, formerly known as JUDE (Java and UML Developers' Environment, pronounced Jūdo (ジュード)), is a UML modeling tool created by Japanese company Change Vision. JUDE received the "Software Product Of The Year 2006" prize, established by Information-Technology Promotion Agency in Japan.
Versions
JUDE/Community
The Community edition (formerly known as Take (竹, "Bamboo") edition for prior to version 1.4) is free to use and offers the following functionality:
Support of UML 1.4 (part of UML 2.0 expression in commercial version JUDE/Professional)
Class diagram (Object, Package, Subsystem and Robustness Diagrams are included)
Use case diagram
Sequence diagram
Collaboration Diagram
State diagram
Activity diagram
Deployment diagram
Component diagram
Generate Java 1.4 sourcecode from model
Import Java 1.4 source files to create model
JUDE/Professional
JUDE/Professional is the product version of JUDE with all the features of JUDE/Community plus enhancements. It has features such as input-output and diagram creation guidance. It is suitable for business use, large-sized models, and document creation.
A 20-day free trial is available by obtaining an Evaluation License.