BIT1205  SYSTEMS ANALYSIS  DESIGN.

UNIVERSITY EXAMINATIONS: 2018/2019
EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE INFORMATION
IN TECHNOLOGY/ BACHELOR OF BUSINESS INFORMATION IN TECHNOLOGY
BIT1205 SYSTEMS ANALYSIS & DESIGN
FULL TIME/PART TIME/DISTANCE LEARNING
DATE: DECEMBER, 2018 TIME: 2 HOURS
INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions.

QUESTION ONE (30 MARKS)
a) i) Draw the schematic diagram of spiral model and explain the various phases involved in
it. (8 marks)
ii)For which types of development projects is spiral model suitable ? (2 marks)
b) i) Illustrate, with an example, the advantages of software prototyping. (4 marks)
ii) Why is it advisable to throw away the prototype in .case of large scale software
development? (4 marks)
c) Summarize the advantages of using CASE tools in systems analysis and design. (8
marks)
d) Explain various types of feasibility studies that the analyst should consider. (4 marks)
QUESTION TWO (20 MARKS)
a) Explain the purposes of the following in system analysis and design
i) Systems specification document (3 marks)
ii) Data dictionary (4 marks)
b) Explain cost-benefit analysis with a suitable example (5 marks)
c) i) What do you understand by quality assurance (2 marks)
ii) What methods are available to ensure quality assurance in a software (4
marks)
d) Why do we insist on documenting a system to standards (2 marks)
QUESTION THREE (20 MARKS)
a) Explain the multifaceted role of a system analyst (8 marks)
b) An organization has the following bonus policy for its staff, “ Female employee aged
between 23 to 31 years get 5% on their basic pay, those above 31 years and less than
49yrs get 8%. Male employee aged between 21 and 29yrs get on their basic pay 4%,
those above 29 yrs and less than 53 yrs get 7% on their basic pay.” You are required to
draw a logic flowchart to solve the problem. (12 marks)
QUESTION FOUR (20 MARKS)
a) State TWO reasons why an organization may opt to use direct change over in
implementation a system (4 marks)
b) Distinguish between the following in systems analysis and design
i) Verification and validation (4 marks)
ii) Perfective and adaptive maintenance (4 marks)
iii) Top-down and bottom approach design (4 marks)
c) Explain why prototyping is driven by 4GL? (4 marks)
QUESTION FIVE (20 MARKS)
a) What is the relevance of systems theory in systems analysis and design (2 marks)
b) Prepare a checklist for the implementation phase of a system in line with the SDLC (8
marks)
c) State ONE advantage and disadvantage of using the available techniques during factfinding in systems investigation (10 marks)

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