The difference between association and aggregation is entirely ... As I’ve shown, the elements appearing on a UML class diagram have a very precise mapping to the Java programming language.

UML is also very strong at showing the cardinality of associations; but the vast majority of associations are either '1' or 'n' at either end, and these forms are rendered explicit to the user in a ...

In our third installment on UML we'll show you how to use sequence diagrams as a tool in your application development and an understanding of object interaction. The purpose of a class diagram is ...