NATIONAL OPEN UNIVERSITY OF NIGERIA
14/16 AHMADU BELLO WAY, VICTORIA ISLAND, LAGOS
SCHOOL OF SCIENCE AND TECHNOLOGY
MARCH/APRIL 2014 EXAMINATION
COURSE CODE: CIT721
COURSE TITLE: INFORMATION SYSTEMS DESIGN AND PROGRAMMING
TIME ALLOWED: 3HOURS
INSTRUCTION: ATTEMPT ANY FIVE (5) QUESTIONS
QUESTIONS:
1.
a. Briefly explain the 3 levels of organizational information. (9 marks)
b. Define the following terms:
i. Transaction Processing System (1 mark)
ii. Office Automation System (1 mark)
iii. Expert System (1 mark)
c. State 4 primary objectives of structured techniques in information system development (2 marks).
2.
a. Discuss briefly (listing examples where possible) the following database models:
i. Relational (4 marks)
ii. Object-oriented (4 marks)
b.
i. Give 3 examples of questions that should be answered when analyzing a system. (1.5 marks)
ii. Briefly explain the 3 steps of the systems approach to system analysis. (4.5 marks)
3.
a. Briefly discuss the definition and functions of the following roles:
i. Business analyst (4 marks)
ii. Application analyst (3 marks)
iii. Computer scientists (3 marks).
b. In order of execution, list (without explanation) the 8 phases of the SDLC. (4 marks)
4.
a. State 3 reasons for the failure of the monopolist approach to management of SDLC. (3 marks)
b. Explain briefly the laissez-faire approach to management of SDLC stating its potential pitfalls (6 marks)
c. Explain briefly information-center approach to management of SDLC stating reasons for its potential demise in organizations (5 marks)
5.
a. Complete the following table: (8 marks)
Step
People involved
Brief descriptions
Problem definition
Analysis and design
Testing and debugging
Implementation
b. List and explain 4 benefits of RAD. (6 marks)
6.
a. Briefly explain DSS (3 marks).
b. List 5 benefits of an information system to the organisation. (2.5 marks)
c. Explain briefly the key features of the monopolist approach to management of SDLC (3.5 marks).
d. State any 5 stages of data processing system growth (2.5 marks).
e. Define the term “Risk identification” and state 4 categories of risks to information systems projects. (2.5 marks)
7.
a. Briefly explain what you understand by MIS. (3 marks)
b. State and briefly explain the 5 elements of a usable MIS system. (10 marks)
c. List 2 pieces of information that should be contained in an MIS system user manual. (1 marks)
You can get the exam summary answers for this course from 08039407882
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