Internet Resources for UML

The Complete UML Reference Card
Provides short descriptions of all the UML modeling elements and explains how they are used in the different types of UML diagrams.

UML Forum
A virtual community that provides current information for modelers interested in the Unified Modeling Language (UML) revisions, tutorials, tools, events, and other resources.

UML Class Diagram
Learn everything there is to know about class diagrams.

UML for Systems Engineering
Bruce Powel Douglass writes with evangelism and wit about basic UML concepts and diagrams.

OMG's UML Center
Download the Object Management Group's complete specifications for UML.

A UML Case Study
Read this case study on designing embedded systems using UML.

UML Links and Resources
An extensive collection of links to UML tools, articles, conferences, user groups, and more.

UML Zone
DevX's UML center with an FAQ, discussion groups, and articles.

Rational Software's UML Resource Page
Read articles, white papers, and UML documentation from the company that started it all.

Internet Resources for UML

The Unified Modeling Language User Guide
From the original developer's of the language, this book serves as a comprehensive tutorial on UML modeling. Get it from Amazon.com.

Applying UML and Patterns
Contains some case studies and examples of UML and offers a good introduction to applied modeling concepts. Get it from Amazon.com.

Business Modeling with UML: Business Patterns at Work
A guide to applying UML to business systems. Get it from Amazon.com.

Sams Teach Yourself UML in 24 Hours
A concise, non-technical book on every aspect of UML from the diagrams to practical examples. Get it from Amazon.com.

UML in a Nutshell: A Desktop Quick Reference
In the tradition of other O'Reilly books, UML in a Nutshell, offers a concise but comprehensive overview of this complex topic. Get it from Amazon.com.

UML Distilled: A Brief Guide to the Standard Object Modeling Language
An informative and comprehensive book on how to integrate UML into object-oriented software development. Get it from Amazon.com.