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.

Model-Driven Development with UML 2.0, SysML and Beyond. Rhapsody is the industry's leading Model-Driven Development (MDD) environment for systems, software, and test. Rhapsody enables systems engineers and software developers to achieve unparalleled productivity gains over traditional document driven approaches by enabling the user to specify systems and software design graphically, simulate and automatically validate the system as it is being built to ultimately produce full production code from the model for the embedded system.

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.

IRqA® belongs to a new generation of Requirements Engineering tools: the emphasis is not merely on requirements management but also the full RE lifecycle, which includes the description of the high-level functions which compose the system being constructed. IRqA® helps to manage the requirements, trace them through the subsequent activities and stages in the system development and to analyze the impact of changes in any element of the requirement specification. IRqA® also adds graphical functions for supporting the specification organization for large and complex projects, guaranteeing the specification quality.

RISE software for information modeling and Managed Information Models (MIM) lets you create dynamic solutions based on a programmable relational database with application layer for quick development and deployment of your applications. Use an all free Community on the RISE for deploying your model to create AJAX applications without a development environment of your own. True Cloud Development!

Sparx Systems Enterprise Architect is a comprehensive team-based modeling environment, providing key benefits at each stage of system development. Supporting UML 2.1, SysML, BPMN and other open standards, Enterprise Architect helps organizations analyze, design, test and construct reliable, well-understood systems. With a rich feature set, high performance and scalability, Enterprise Architect improves productivity and delivers a compelling user experience. Enterprise Architect extensions also provide tight integrations with popular development platforms, such as Eclipse and Visual Studio, and support for key industry frameworks including Zachman Framework, MODAF, DoDAF and TOGAF.

UMLet is a UML tool aimed at providing a fast way of creating UML diagrams. UML elements are modified using text input instead of pop-up dialogs. Elements can be modified and used as templates; this way, users can easily tailor UMLet to their modeling needs. UMLet supports a variety of UML diagram types: class diagrams, use case diagrams, sequence diagrams, state diagrams, deployment diagrams, activity diagrams -- see some examples.

UMLet allows users to create their own custom UML elements. An element's look can be modified at run-time by changing a few lines of Java code; UMLet then compiles the new element's code on the fly. Without leaving UMLet, users can thus create and add new element types to their diagrams.

WebRatio is a Model Driven development environment that allows modeling and automatic generation of Web interface applications. The generated applications are standard Java and can be installed in any operating environment and integrated with any type of database or information system.

The XEO (eXtensible Enterprise Objects) Framework is an agile development framework designed to create enterprise web applications. XEO is built around Object Oriented concepts, Model Driven Development (MDD), Model View Controller (MVC) and Model Driven Architecture (MDA) and it's powered by Java.

StarUML is an open source project to develop fast, flexible, extensible, featureful, and freely-available UML/MDA platform running on Win32 platform. The goal of the StarUML project is to build a software modeling tool