UNIVERSITY EXAMINATIONS: 2017/2018
EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN
INFORMATION TECHNOLOGY/ BACHELOR OF BUSINESS
INFORMATION TECHNOLOGY/ BACHELOR IN APPLIED
COMPUTING/ BACHELOR IN INFORMATION AND
COMMUNICATION TECHNOLOGY
BIT 1205/BBIT 104/BCT 2101: SYSTEMS ANALYSIS AND DESIGN
FULL TIME/PART TIME/DISTANCE LEARNING
DATE: AUGUST, 2018 TIME: 2 HOURS
INSTRUCTIONS: ATTEMPT QUESTION ONE AND ANY OTHER TWO
QUESTION ONE [30 MARKS]
a) Provide a brief explanation as to why an Organization should develop a New Information
system. ( 6 Marks)
b) The term systems development is used to describe all the activities that go into producing
an information systems solution to an organizational problem or opportunity. Outline the
activities involved. (6 Marks)
c) Give a detailed explanation of Systems Analysis. (6 Marks)
d) Read and understand the following narrative description.
The purpose of the TEXTBOOK INVENTORY SYSTEM at a campus bookstore is to
supply textbooks to students for classes at the local university. The university’s academic
departments submit initial data about courses, instructors, textbooks and project
enrollments to the bookstore on a TEXTBOOK MASTER LIST. The bookstore generates
a PURCHASE ORDER, which is sent to the publishing companies supplying textbooks.
Book orders arrive at the bookstore accompanied by a PACKING SLIP, which is checked
and verified by the receiving department. Students fill out a BOOK REQUEST that
includes course information. When they pay for their books, the students are given a
SALES RECEIPT.
Required: Draw a context DFD for the portion of the narrative described above
(8 Marks)
e) Explain FOUR categories of information systems (4 Marks)
QUESTION TWO [20 MARKS]
a)i. Describe system conversion [2 Marks]
ii. Explain the FOUR methods that may be used during system conversion. [8 Marks]
b) Describe any THREE qualifications & any THREE roles of a system Analyst. [6 Marks]
c) Explain FOUR reasons why new system projects may be initiated. [4 Marks]
QUESTION THREE [20 MARKS]
a) Elaborate the FOUR notations used in DFD’s [8 Marks]
b) Distinguish between
i. Logical & physical design [4 Marks]
ii. Systems Validation & System Validation. [4 Marks]
iii. Probabilistic & deterministic systems. [4 Marks]
QUESTION FOUR [20 MARKS]
a) Describe what is meant by a traditional systems development life cycle (SDLC). [6 Marks]
b) Describe THREE problems that are commonly associated with the traditional SDLC.
[6 Marks]
c)
i. Describe an alternative systems development approach [4 Marks]
ii. How does the solution in (c i) above help to overcome three of the problems that you
described in (b) above. [4 Marks]
QUESTION FIVE [20 MARKS]
a) Give a brief description of the following terms;
i. Normalization
ii. Entity Relationship model
iii. Structured walkthroughs
iv. System testing [8 Marks]
b) Explain FOUR major human problems likely to be encountered by the systems analyst.
[4 Marks]
c) No matter how well the users of a system are satisfied, the system cannot be considered
complete and successful until documented to a high standard. Explain FOUR benefits of
documenting systems to high documentation standards [8 Marks]
