ООП (КН) 2012/13, II поток

The UML Class diagram is used to visually describe the problem domain in terms of types of object (classes) related to each other in different ways.

There are three primary inter-object relationships: association, aggregation, and composition. Using the rightrelationship line is important for placing implicit restrictions on the visibility and propagation of changes to the related classes, matter which play major role in reducing system complexity.