NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
APRIL 2019 EXAMINATION

Course Code:              CIT432                                                           

Course Title:              Software Engineering – II

Units:                          3

Time Allowed:            2½ Hours

Instruction:                Answer Question 1 and any other 4 questions

QUESTIONS

1(a)      Describe the term “Software Engineering” and within this context explain the concept of Software Engineering Methodology   (8 marks)

1b)       With the aid of a diagram describe the waterfall model (8 marks)

1c)       List and explain three (3) attributes of a good software. (6 marks)

2(a)      Give a brief description of the term “Software” (2 marks)

2(b)     Write a short note on the term “Requirement” (4 marks)

2(c)      List and explain three (3) Issues of Professional Responsibility (6 marks)

3(a)      Enumerate four (4) problems of a waterfall model (4 marks)

3(b)     Define the CASE tool (2 marks)

3(c)      List and explain three (3) types of Requirements. (6 marks)

4(a)      State four (4) prototyping steps (4 marks)

4(b)     List four (4) requirements checking in software development (4 marks)

4(c)      State four (4) benefits of Software Re-use (4 marks)

5(a)      Distinguish Between the following:

1. Verification and Validation Process    (2 marks)
2. Testing and Debugging                       (2 marks)

5(b)     Define the term “Feasibility Study” (4 marks)

5(c)      List four (4) advantages of Spiral model (4 marks)

6(a)      List four (4) advantages of Incremental Development (4 marks)

6(b)     State two (2) advantages and two (2) disadvantages of a prototype. (4 marks)

6(c)      Describe the concept of software design (4 marks)