A UML modeller based on GWT

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.

Visual Use Case is an easy to use, revolutionary Use Case Authoring and Diagramming tool. Visual Use Case will help you write effective Use Cases faster and help you document your system's requirements accurately.

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

Violet is a UML editor with these benefits:
* Very easy to learn and use
* Draws nice-looking diagrams
* Completely free
* Cross-platform.
Violet is intended for developers, students, teachers, and authors who need to produce simple UML diagrams quickly

UMLGraph allows the declarative specification and drawing of UML class and sequence diagrams.

The UML Designer is an easy to use tool for quick design of C# based software systems with automatic code generation to allow a solid starting point for development.

Taylor's model driven architecture on rails makes creating JEE applications as easy as the much talked about ruby-on-rails, but with all the power of JEE and UML. Business models are defined using simplified UML diagrams following well-defined conventions. These models are then used to generate the exact same ejb3/portlet code your would write by hand. Then use the code as is or modify it as you see fit and your changes will be preserved.

NClass is a free, UML-based class diagram editor with full C# and Java language support. The user interface is designed to be simple and user-friendly for easy and fast development. Properties, enums, delegates and other language specific elements are fully supported with strict syntactical and semantical verification, and declaration parsers provide a handy way for skipping the old mouse-controlled editing.

The goal of MetricView is to give more insight into UML models by visualizing software metrics that have been computed by another tool directly on top of the graphical representation of the UML model. Up to now, these metrics (which are the actual entities that should give you insight into the design) are only available in tabular form, while the UML models have all kinds of neat diagrams. MetricViews goal is to somehow visualize these metrics in the UML model, making it more clear so see what's right and what's wrong.