Umple is a technology for model-oriented programming.
It can be used for pure UML modeling. Or it can be used to add UML constructs, such as associations and state machines to code written in Java, PHP, C++ or Ruby. It generates code in these languages that can save a large amount of programming
... [More] effort and result in higher quality.
The UmpleOnline tool allows you to edit UML diagrams graphically, and watch the Umple textual code being written in real time. This works the other way too: You can write textual Umple and watch the corresponding UML diagram appear.
Umple is being extended to support patterns, tracing and a variety of other features.
Umple is written in itself, which is central to maintaining its quality.
Umple can be used today by any programmer or modeler [Less]
Papyrus is a graphical editing tool that provides UML2 editors and environment to create and combine any graphical editor (domain-specific modeling language) defined from Ecore metamodel or from UML2 profile. It is Eclipse-based and it uses the Eclipse Graphical Modeling Framework.
Lightweight framework for heavy lifting
With Evolutility, you can build database CRUD web applications for ASP.net and SQL Server simply by describing their metadata (UI and DB mapping)... without any hand coding necessary.