Flow4J is an Eclipse Plug-in for modeling process flows in a drag and drop manner. A process flow can contain process steps, which can be linked together to a complex flow. All flows can contain the following types of flowlets:

• Control Flowlets like Start-, Decision- and Jump-Flowlets which are configurable in Eclipse, and tell "how" the process should flow.
• Task Flowlets accomplish a specific task that is wrapped in a java class. The wrapped functionality can be everything like an EJB call or even JNI call. It is also possible to write tasks in scripting languages like Jython, Groovy, JavaScript etc.

After designing the flows in the Eclipse Plug-in, the flow's java source code is automatically created, and is immediately ready for compilation and deployment in a java web/application.