Sophisticated UML modeling software that comes in numerous editions, from a free community edition up through a professional version. Can be integrated with Eclipse, NetBeans, JBuilder, Visio or IntelliJ Idea and can import and export Rational Rose, XMI and Oracle JDeveloper projects. Written in Java, so it is cross-platform. Will do forward and reverse engineering and real-tiem synchronization for Java code. Will generate HTML or PDF documentation.