Creates UML 2.0 diagrams quickly and easily. Develop, document, and communicate your designs in a systematic yet flexible commonly understood notation. Supports activity, class and object, use case, sequence, state, package, and component deployment diagrams, and more. This specialized drawing and design tool helps you exploit the best aspect of UML, the standardized visual design process without imposing a cumbersome project methodology. And it simplifies this process so that you can be productive immediately with little or no training. Hyperlinked tips provide instant help. Professional visual design features include full pan and zoom, graphics import, web page export, poster printing, hyperlinks, curves, custom arrowheads, and the ability to add your diagrams to most other documents. Powerful grid and alignment aids keep your diagram attractive.

QuickUML is a software design tool that tightly integrates a core set of UML models with code generation for several languages. An entire project is presented through a tabbed window that includes use cases, class models, object models, dictionary and code and saved as an XML file. Use cases document user interactions with the system and link to models, code, foreign files or other use cases. Class models may contain classes, interfaces, components, packages and other objects. Sequence diagrams illustrate how objects interact with emphasis on the order in which things occur. QuickUML contains advanced features for multiple language projects, design namespaces, UML stereotype extensions, flexible color support, custom detail fields and automated generation of class models from the dictionary. An integrated code manager enables the designer to navigate through code files linked to use cases and diagram objects.

A software toolset for the modeling and animation of e-commerce transactions. The toolset is open-source and is made up of three components; a CASE plug-in for MagicDraw™ UML (v12), a workflow engine and a centralized web client for interacting with the model via a web browser. This toolset is for business analysts who need to model the content and structure of complex messages for multiple e-business partners. After defining the messages business partners can interact -or play- with the transactions in an easy to understand way. Reduce your testing and IT development costs by validating the business requirements prior to beginning any development.

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

Hackolade is a visual data modeling tool for NoSQL and multimodel databases like MongoDB, DynamoDB, and Couchbase. Schema modeling in a schemaless world seems like a contradiction. Hackolade applies some Entity Relationship theory to non-relational databases to represent denormalized data in a user-friendly way.

PUG (PHP UML Generator) is a tool which generates an UML class diagram from a live PHP object graph.

Yakindu is an open-source-toolkit for the model-driven development of embedded systems. Through the systematic use of models, it aims at an integrated development process as well as an increase in quality and maintainability.

CASE Spec is Goda Software's powerful, innovative, easy-to-use requirements tracking and lifecycle management tool. This very simple tool enables effective requirements tracking, analysis,baselining, collaboration, interfacing with other tools and creating system blueprints. CASE Spec features an innovative traceability matrix that illustrates the relationships among requirements, systems and software components. With this information at their fingertips, project managers, software architects and developers can clearly see how changing requirements affect software and systems development processes.

MetaEdit+ allows developers to obtain modelling and code generation tool support for domain-specific languages (DSM) within days. DSM languages are more expressive than generic UML and allow developers to generate full code, making development less complex and accelerating development time with a factor of 5 to 10. MetaEdit+ provides an open standards-based WebServices API for integration purposes and runs on all major platforms in single and multi-user set-up.

Stylebase for Eclipse is an open source tooling environment for software architects and designers. Stylebase is a reuse repository for architectural models and design patterns and it assists in applying quality-driven architecture design into software engineering.