Getting to know UML

A leading Czech consultant and author on object-oriented application design,
 Ilja Kraval (objects.cz),
 once compared software developers’ lack of UML knowledge
 to illiteracy in one of his articles.

If UML is unfamiliar to you,
 you’ll welcome the first in a series of articles on the subject by 
 René Stein.
 Designing applications in UML
 gives us a gentle introduction to the language.