Also new in this edition is coverage of UML's Object Constraint Language (OCL). Using OCL, you can specify more narrowly the functionality described in a given diagram by recording limits that are the result of business rules and other factors.
Handy pocket reference
An instructor recommended this booklet to the whole class as a good pocket reference to UML. I'm glad I followed his advice. This is a good thing to have around for easy reference.
Perfect if you know a bit of UML but need a handy reference
This is the perfect book for occasional UML user to keep on their desk. It is also great if you know UML 1.x and need to get quickly up to speed on the features of 2.0. No fluff, just the facts.