The Unified Modeling Language (UML) has quickly become the de-facto standard for building Object-Oriented software. This tutorial provides a technical overview of the 13 UML diagrams supported by Enterprise Architect. UML 2 semantics are explained in detail in the new UML 2.0 tutorial .
yEd is a powerful desktop application that can be used to quickly and effectively generate high-quality diagrams. Create diagrams manually, or import your external data for analysis. Our automatic layout algorithms arrange even large data sets with just the press of a button. yEd is freely available and runs on all major platforms: Windows, Unix/Linux, and Mac OS X . The latest release is version 3.10.2
The SQL Power Architect Community Edition is a cross-platform, open-source data modeling tool with a GUI and an embeddable API. For more information on the Community or Enterprise Edition of SQL Power Architect, please visit http://www.sqlpower.ca/page/architect SQL Power Architect 1.0.6 Released!