National Open University Exam Past Question – CIT 721 OCTOBER/NOVEMBER 2014 EXAMINATION

NATIONAL OPEN UNIVERSITY OF NIGERIA CIT 721 Information Systems Design and programming

14-16 AHMADU BELLO WAY, VICTORIA ISLAND LAGOS SCHOOL OF SCIENCE AND TECHNOLOGY OCTOBER/NOVEMBER 2014 EXAMINATION

COURSE CODE: CIT 721

COURSE TITLE: Information Systems Design and programming

TIME ALLOWED: 3 Hours

INSTRUCTION: Answer any five (5) questions.

Question 1

1. a. The role of systems analyst is changing into two distinct positions/ro List

these roles and briefly discuss (8 marks)

1. In order of execution, list (without explanation) eight-phase processes which explains how SDLC work . (4 marks)
2. a. State 4 primary objectives of structured techniques in information system

development (2 marks).

Question 2

1. i) As part of orientation being given to the newly employed graduate system analyst,

you have been instructed to write a brief document enumerating and briefly explaining  (not  more  than  two  sentences  each)  the  characteristics  of  a  good systems analyst. ( 14 marks).

Question 3

1. a. Define Transaction Processing System
2. List four (4) primary objectives of Structured Techniques (4 marks)
3. c. Information within an organization can be analyzed into three levels. Briefly explain the 3 leve (9 marks)

Question 4

1. i) Enumerate the Transformation Proce (3 marks)
2. ii) List and explain 4 benefits of RAD. (6 marks)

iii) Write briefly on the Transformation Process.( (5 marks)

Question 5

Your Organization requested you to provide a brief detailed summarized paper on database

models educating the reader on the types and their major characteristics. (10 marks)

Define the following;

1. i) Environment (2 marks)
2. ii) Boundaries (2 marks)

Question 6

1. a) Define the following terms (2 marks)
2. Office Automation System (1 mark)
3. Expert System (1 mark)

1. Briefly discuss the following 12 (Marks)
2. The Monopolist
3. The Laissez-Fair Approach

III.      The Information Centre Approach

Question 7

1. a) The real world is complex and dynamic and due to this fact, the systems approach normally uses models of the system under investigation instead of the

system itself. Explain what a model is and briefly discuss any four types of models (10 Marks)

1. b) Define the following terms:
2. Office Automation System (1 mark)
3. Expert System (1 mark)
4. c) Highlight any four basic steps required for the complete analysis and design cycle

(2 Marks)