MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -Multiplicity can be set for attributes, operations, and associations in a UML class diagram, and for associations in a use case diagram. The multiplicity is an indication of how many objects may participate in the given relationship or the allowable number of instances of the element.

Detailed explanation-2: -In UML, multiplicity describes how many instances of one class can be connected to an instance of another class through a given association. This relation is often expressed as a string showing the lower and upper bounds at the endpoints of a connection.

Detailed explanation-3: -There are four types of multiplicities: one-to-one, one-to-many, many-to-one, and many-to-many. One-to-one: Each entity instance is related to a single instance of another entity.

Detailed explanation-4: -Association end multiplicity defines the number of entity type instances that can be at one end of an association. An association end multiplicity can have one of the following values: one (1): Indicates that exactly one entity type instance exists at the association end.

Detailed explanation-5: -In UML diagrams, an association class is a class that is part of an association relationship between two other classes. You can attach an association class to an association relationship to provide additional information about the relationship.