Open Source Java UML Tools

The Eclipse XML Meta-Modeling Tools project provides tools like editors, extended validation and generators for developing xml based meta-models and domain-specific languages in eclipse.

This Project offers different model operations for the Eclipse Modeling Framework, such as comparison, difference calculation, merging and a unification of EMF models.

Fast UML is an open-source UML tool with a simple user interface pop-up free. Draw UML diagrams fast, export diagrams to png, jpg and clipboard. It pretends to be the union between Violet and UMLet.

JAGAL provides implementations for directed graphs (weighted and unweighted) and varoius types of transition systems as well as utils for graph traversal and modification. JAGAL builds upon the Java library TOVAL (located at http://sourceforge.net/p/toval). To use JAGAL, make sure the TOVAL library is on the build path. This library uses and encloses jGraphX (https://github.com/jgraph/jgraphx). A documentation for JAGAL can be found under http://doku.telematik.uni-freiburg.de/jagal.

LightUML is an Eclipse(TM) (www.eclipse.org) integration of UMLGraph (www.spinellis.gr/sw/umlgraph/), a lightweight tool for generating class diagrams from Java projects and packages. Previously installed GraphViz (www.graphviz.org) is required!

Simple implementation of finite state machine concepts. The project contain ease-to-use library and modeling graphical tool. Project define simple identical API for Finite State Machines for both language bindings (C# and Java).

SEPIA provides implementations for various types of Petri nets. Along Place/Transition-nets, it supports Petri nets with distinguishable token colors and defines coloured workflow nets, where coloured tokens are interpreted as data elements used during process execution. To support information flow analysis of processes, SEPIA defines so-called IF-Nets, tailored for security-oriented workflow modeling which enable users to assign security-levels (HIGH, LOW) to transitions, data elements and persons/agents participating in the process execution. SEPIA builds upon TOVAL (http://sourceforge.net/p/toval), JAGAL (http://sourceforge.net/p/jagal) and SEWOL (https://sourceforge.net/projects/jawl/). To use SEPIA, make sure these libraries are on the build path. SEPIA encloses the Multi Schema Validator (https://msv.java.net/) and isorelax (http://iso-relax.sourceforge.net/) The documentation can be found under http://doku.telematik.uni-freiburg.de/sepia.

java-turing-emulator aims to provide a GUI for creating, editing and simulating Turing machines and deterministic machines. its build in java and uses the swt-framework.

Open Source Semantic Web Search Engine Software: If two machines anywhere on the web can agree on the same definition of a digital service or digital good, then machine to machine transactions can use this lingua franca to transact on the users behalf.

u4j2rsf is a java tool to translate reports generated by Understand for Java to RSF (Rigi Standard Format).