The relationship between class is derived from the relationship to put ideas (Abstraction) is to provide ideas to a class object to cause various types of relationships.
Relations between classes The relationship is derived from a false concept. (Abstraction) is a concept to an object as a class. Cause different types of relationships
The relationship between the classes. The relationship is derived from putting the concept (Abstraction) is the concept with the object and the class. Cause relation types.