TopTeam Analyst is a unique tool that provides a "complete solution" for Requirements gathering and management.
* State-of-the-art Use Case Authoring and Modeling
* Rich Requirements Capture and Management
* Powerful repository for all Requirements artifacts such as Screen Prototypes, Documents, etc.
* Advanced Traceability creation and visualization
* Integrated Issue Tracking and Change Proposal system
* Multi-user repository with a full suite of Collaboration Tools

Eclipse and EMF template-based system for source-code generation from UML models. Acceleo is easy to use. It provides "off the shelf" generators (JEE, .Net, Php...) and template editors for Eclipse.

AmaterasUML is an Eclipse plug-in for drawing UML class-diagram, and UML sequence-diagram.

APIviz is a JavaDoc doclet which extends the Java standard doclet. It generates comprehensive UML-like class and package diagrams for quick understanding of the overall API structure.

A framework to optimize ABC, SWC and SWF files. Apparat features include:
* Compression
* Code analysis
- UML diagram generation
- Bytecode flowgraph generation
- Static check for [Abstract] methods
- Detailed ABC information
- Code coverage instrumentation
- Typesafe trace() removal keeping side-effects
- ASMify existing code
* Optimization

ArgoUML is an open source UML modeling tool and includes support for all standard UML 1.4 diagrams. It runs on any Java platform and is available in ten languages. ArgoUML provides the following features: All 9 UML 1.4 Diagrams supported, Platform Independent: Java 1.4+, Standard UML 1.4 Metamodel, XMI Support, Export Diagrams as GIF, PNG, PS, EPS, PGML and SVG,, Advanced diagram editing and Zoom, Forward Engineering, Reverse Engineering / Jar/class file Import, Cognitive Support, Reflection-in-action, Design Critics, Opportunistic Design, Comprehension and Problem Solving

Artisan Studio is an all-in-one integrated development tool suite which provides systems and software modeling and component based development targeted for technical systems. It is the tool of choice for complex mission-critical systems and software engineering.
Artisan Studio provides comprehensive support for the leading industry standards, including OMG SysML, OMG UML and Architectural Frameworks. Studio delivers on the promise of an integrated collaborative development environment – allowing systems and software engineering teams to work as one – from concept through to delivery and maintenance.

Artisan Studio Uno™ is the industry’s first free industry scale software and systems modeling tool, providing the leading modeling standard notations: OMG SysML™ and UML®. Artisan Studio Uno is a single user version of Artisan Studio® giving quick, and easy access to systems and software modeling, at zero cost. Artisan Studio Uno is the same industrial-grade modeling tool as the multi-user version, Artisan Studio with no restrictions on model size, saving or export. With an easy standalone installation, you can start building your own SysML and UML designs immediately.

UML tool where you can develop at model level and automatically generate source code for C++.

Built-on Eclipse, BLU AGE generates UML models from legacy applications’ source code and instantly transforms them into Java EE and .Net applications. The BLU AGE Model Driven workbench leverages your agile development and legacy application modernization projects. BLU AGE Build offers business application's source code transformation and generation features. This module is designed for consultants and developers who use it on their workstations, set around a UML source repository, if any.