Question:

(a)

(i) Using examples from the case study or otherwise, explain the following concepts:

• Encapsulation
• Specialization
• Polymorphism

(ii) Discuss the advantages of the above concepts with respect to software development.

(b) Using a diagram, define the phases of the Unified Development Process. Describe, briefly, the activities and deliverables of each phase.

(c) Briefly describe how the CRC (Class-Responsibility-Collaboration) index card approach may be used in Object Oriented Analysis. List two advantages and two disadvantages of using CRC in systems analysis.