UNIVERSITY EXAMINATIONS: 2010/2011
FIRST YEAR EXAMINATION FOR THE DEGREE OF BACHELOR OF
SCIENCE IN INFORMATION TECHNOLOGY
BIT 1205: SYSTEM ANALYSIS AND DESIGN
DATE: AUGUST 2011 TIME: 2 HOURS
INSTRUCTIONS: Answer question ONE and any other TWO questions
Question One (Compulsory)
a) Describe the six phases involved in the traditional Systems Development Life Cycle (SDLC)
(6 Marks)
b) Why is the testing stage of systems development so important? (2 Marks)
c) Define maintenance and explain the three activities involved in maintenance (7 Marks)
d) Explain four methods of fact finding (4 Marks)
e) Providing examples describe three reasons for systems requests (3 Marks)
f) How is structured design related to structured programming? (4 Marks)
g) Systems analysis is the analysis of a problem that the organization will try to solve with an
information System. Give the four activities involved in the analysis (4 Marks)
Question Two
a) Describe four methods of system conversion (4 Marks)
b) A company supplies a range of cosmetic products and gives discounts on orders as follows: For
orders worth less than $50 a discount of 2% is given. For orders worth $50 and over a discount of
5% is given. These discounts are only given if the customer’s account is less than four weeks in
arrears. If the account is more than eight weeks in arrears a pro forma invoice must be sent and
settled before dispatch.
Prepare a limited entry decision table (12 Marks)
c) Define the terms (4 Marks)
i) Decision tree
ii) Decision table
Question Three
a) Using the following description prepare decision tree (10 Marks)
A pizza delivery service varies its charges based on the distance from its operation base to the
customer, the value of the order and the number of previous orders made by the customer. For
any orders over £20 there is no delivery charge. For any orders over between £10 and £20
there is a delivery charge of £1.50 for customers within a 5 mile radius and £3 for customers
further than 5 miles. For customers who have made more than 5 orders the delivery charge is
halved. If an order is under £10 in value it must be collected.
a) Describe the role of a system’s analyst in a software systems project (5 Marks)
b) Discuss the different levels of CMM (5 Marks)
Question Four
a) What are the strengths and limitations of using methodologies based on a lifecycle? (6 Marks)
b) Define the term Structured English (2 Marks)
c) State three rules you need to conform to when using Structured English (3 Marks)
d) Using examples explain three logical constructs of Structured English (9 Marks)
Question Five
a) Using a well labelled diagram describe the requirements engineering process (10 Marks)
b) State and explain 4 functions of project management (8 Marks)
c) Distinguish between the logical design and the physical design in system design process (2 Marks)
