1. (a) Within the context of object oriented analysis and design, state three UML model views that are used. For each one, state their purpose. [6 Marks] (b) Using an example of your choice, draw a clearly labelled Use Case Diagram showing an Actor, a Communicates Relationship, a Use Case and the System Boundary. [4 Marks] (c) Explain, giving an example, the meaning of the following terms within the context of a Use Case Diagram: (i) Includes (ii) Extends (iii) Generalisation / Specialisation [3x4 Marks] (d) Explain the term Use Case Narrative and discuss its importance as part of the analysis and design process. Illustrate your answer by use of an example. [11 Marks]