Object Oriented Software Engineering   View all facts   Glossary   Help

subject > multiplicity

multiplicity
subject			fact

multiplicity	can be written as a specific positive integer or as several multiplicity values or ranges separated by commas
	has definition Information placed at each end of an association indicating how many instances of one class can be related to instances of the other class
	is a subtopic of 5.3 - Associations and Multiplicity
	is drawn as a range separated by two dots (e.g. 2..3) in a UML class diagram
	is a kind of subject
	should be as least restrictive as possible so as not to reduce the flexibility of the system

Kinds of multiplicity :

• default multiplicity (4 facts)
• interval (4 facts)
• many (4 facts)
• one (3 facts)
• optional (4 facts)