UNIVERSITY EXAMINATIONS: 2014/2015
ORDINARY EXAMINATION FOR THE BACHELOR OF SCIENCE
IN INFORMATION TECHNOLOGY
BIT 1205 SYSTEMS ANALYSIS AND DESIGN – DISTANCE
LEARNING
DATE: DECEMBER, 2014 TIME: 2 HOURS
INSTRUCTIONS: Answer Question ONE and any other TWO
QUESTION ONE
a) State the goal of systems analysis and design. (2 Marks)
b) Testing is key to any system development process. State the FOUR main types of testing
carried out during development. (4 Marks)
c) State TWO advantages and TWO disadvantages of SDLC. (8 Marks)
d) Define business analysis. (2 Marks)
e) State FOUR advantages FOUR and disadvantages of prototyping as used in systems analysis and design. (8 Marks)
f) Distinguish validation and verification in systems analysis. (4 Marks)
g) Explain TWO key roles played by a system analyst. (2 Marks)
QUESTION TWO
a) Define a structured walkthrough and give three examples. (5 Marks)
b) In carrying out a cost/benefit analysis, state the FIVE methods that can be used for carrying
out an evaluation to a system. (5 Marks)
c) State the FOUR methods for carrying out quality control in systems development. (4 Marks)
d) What is your understanding of requirements engineering. (3 Marks)
e) Which stake does the government have in a payroll system in an organization. (3 Marks)
QUESTION THREE
a) When a customer places an order, the order is fast verified, then appropriate stock levels are
established. In certain cases the customer is notified of inadequate stocks other the necessary
stock adjustments are made then a delivery note is generated to accompany the goods when
dispatched to the customer. A copy of the delivery note is given to the accounts department to
generate an invoice which is also given to the customer. On receiving the goods the customer
makes payments which automatically adjusts the outstanding debt.
Required
i) List the FOUR components of dataflow flow diagram. (4 Marks)
ii) Draw a context diagram. ( 4 Marks)
iii) Draw a Level 1 Logical DFD. (12 Marks)
QUESTION FOUR
a) In a bus ticket booking system, Identify the entity types in the systems (5 Marks)
b) In question 4(a) what are the relations that exist between the entity types using the chen notation. (10 Marks)
c) Draw an entity relation diagram (5 Marks)
QUESTION FIVE
a) What is the importance of data dictionary in systems analysis and design. (3 Marks)
b) Why is it necessary to have the documentation done to conform to standards. (5 Marks)
c) In design of the output, what are the considerations for a good output design. (5 Marks)
d) Explain the activities in order when the implementation of the system is carried out.
(7 Marks)
