UNIVERSITY EXAMINATIONS: 2018/2019
EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE
INFORMATION TECHNOLOGY/ BUSINESS INFORMATION
TECHNOLOGY/ SOFTWARE DEVELOPMENT/ INFORMATION
SECURITY & FORENSICS
BIT1205 SYSTEMS ANALYSIS & DESIGN
FULLTIME/PARTIME/DISTANCE LEARNING
DATE: APRIL, 2019 TIME: 2 HOURS
INSTRUCTIONS: Answer Question One & ANY OTHER TWO questions.
QUESTION ONE (30 MARKS)
a) Summarize the advantages of using 4GL tools in systems analysis and design.
(8 Marks)
b) Explain what is technical feasibility? (4 Marks)
c) i) Draw the schematic diagram of waterfall model and explain the various phases
involved in it. (8 Marks)
ii) For which types of development projects is spiral model suitable? (2 Marks)
d) i) State the disadvantages of software prototyping. (4 Marks)
ii) Why is it advisable to throw away the prototype in .case of large scale software
development? (4 Marks)
QUESTION TWO (20 MARKS)
a) State TWO reasons why an organization may opt to use parallel running in
implementing a system (4 Marks)
b) Distinguish between the following in systems analysis and design
i) Corrective and perfective maintenance (4 Marks)
ii) Top-down and bottom up approach design (4 Marks)
iii) Verification and validation (4 Marks)
c) Explain the importance of CASE tools in software development? (4 Marks)
QUESTION THREE (20 MARKS)
a) State ONE advantage and disadvantage of any FOUR techniques used in systems
investigation (8 Marks)
b) Distinguish between systems analysis and system design (4 Marks)
c) State the contents of a feasibility study report (8 Marks)
QUESTION FOUR (20 MARKS)
a) Explain the purposes of the following
i) Systems requirements specifications (3 Marks)
ii) Entity relationship diagram (4 Marks)
b) Explain cost-benefit analysis with a suitable example (5 Marks)
c) i) What do you understand by quality control (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 FIVE (20 MARKS)
a) Explain the architectural role of a system analyst (4 Marks)
b) An organization has the following bonus policy for its staff, “ Male employee aged between
23 to 31 years get 5% on their basic pay, those above 31 years and less than 49yrs get 8%.
Female 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 prepare
i) A limited entry decision table (8 Marks)
ii) Structured English to the problem (8 Marks)
