DIT $306$ OBJECT ORIENTED ANALYSIS AND DESIGN ASSIGNMENT TWO

Briefly explain why multiplicity is not shown in a generalization$/$specialization relationship $[2$ Marks$]$

Differentiate the characteristics of an object ; $[6$ Marks$]$

Identity

State

Behavior

Develop a simple sequence diagram in which; $[4$ Marks$]$

An object O receives message M from an actor;

O creates a new object P;

P sends a message to Q;

Represent each of the following relationship diagrammatically

A company may employ one or more persons. One person may be employed by many companies. $[4$ Marks$]$

A company has many departments. A department belongs to one company. $[4$ Marks$]$