NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
JUNE/JULY 2013 EXAMINATION

COURSE CODE: CIT851

COURSE TITLE: Advanced Systems Analysis and Design  (3 units)

TIME ALLOWED: 3hrs

INSTRUCTION: Answer any five (5) questions

QUESTIONS

1a. What are the key tasks of the structured systems analysis approach?           (6 marks)

1b. State the guidelines for a Systems Analyst who acts as a group facilitator. (8 marks)

[Total = 14 marks]

2a. How do Systems Analysts gather information about an existing system?(10 marks)

2b. Explain the concept of a ‘System Development Process Scheduling’  (4 marks)

[Total = 14 marks]

3a. Write short notes on the following:

Physical Design                                                           )

Analysis                                                                      ) (2 marks each, Total=10)

Logical Design                                                            )

Project Initiation and Planning                                   )

Prototyping                                                                 )

3b. Give four reasons why a data dictionary is important.                 (4 marks)

[Total = 14 marks]

4a. Identify the criteria for designing attractive forms.                                  (10 marks)

4b. Define the term ‘Decision Support Systems’.                                         (4 marks)

[Total = 14 marks]

5a. Describe 5 layers of a distributed system architecture.                             (10 marks)

5b. List any 4 benefits of interviews                                                              (4 marks)

[Total = 14 marks]

6a. State and briefly explain 4 aspects of feasibility analysis.            (12 marks)

6b.How long does feasibility study last?                                            (2 marks)

[Total = 14 marks]

7a. Why is it desirable for Systems Analysts to visit sites of the organisation for which a system is being developed?        (6 marks)

 7b. List and briefly explain any 4 categories of coupling.                                                     (8 marks)

[Total = 14 marks]