Visual Paradigm for UML is a user-friendly UML tool that supports complete software lifecycle - analysis, design, coding and deployment. The UML tool helps you build quality applications faster, better and at lower cost. You can draw UML diagrams, reverse source code, generate code from class diagrams and generate documentation. The UML modeling tool also provides abundant UML resources including UML tutorials, UML interactive demonstrations and UML projects.

Feature List:
+Complete UML notation support (class diagram, use case diagram, sequence diagram, collaboration diagram, state diagram, activity diagram, component diagram, deployment diagram)
+OOAD support - OO analysis (OOA), OO design (OOD)
+Use case modelling
+Textual analysis for identifying candidate actors, use cases, flow of events, classes...
+CRC diagram for finding objects
+Business Workflow diagram - Process, Decision, Business Actor, Document
+Incremental roundtrip engineering support
+Reverse engineering - code to models, code to diagram (Java to UML models, Java to UML diagram)
+Instant Reverse for Java, C++, XML, Dot NET dll/exe, CORBA IDL
+Code Generation - generate code, model to code, diagram to code (UML to code, UML model to Java)
+Real-time synchronization between source code and class diagrams
+UML Report generator for generating HTML/PDF document
+Automatic diagram layout - rearrange shapes and connectors
+Import/export XMI file
+Import Rational Rose project
+MS Visio Integration - drawing UML diagrams with stencils from MS Visio
+Export diagrams to different formats (SVG, PNG, JPG...)
+Version control
+Plugin and template
+Multilingual support
+More...

Other UML CASE Tools / UML Plugins:
Java Platform (Linux/Windows/Mac OS X):
+SDE for Eclipse
+SDE for NetBeans
+SDE for Sun ONE
+SDE for Oracle JDeveloper
+SDE for IBM WebSphere (WSAD)
+SDE for Borland JBuilder
+SDE for IntelliJ IDEA
Windows Platform:
+SDE for MS Visual Studio .NET
+More SDE...