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a)Organization information systems are categorized under:
i)Transaction Processing System (TPS)
ii)Management Information Systems (MIS)
iii)Decision Support System (DSS)
iv)Executive Information System (EIS)
v)Expert Systems (ES)
Required:
Suggest one application of each of the systems types listed above for each of the following functional areas of business:
•Sales and marketing. (5 marks)
•Finance (5 marks)
b)What impact might end-user computing have on the organization of information technology functions? (6 marks)
c)Suggest examples of activities end-users might not be responsible for.(4 marks)
(Total: 20 marks)

QUESTION TWO
Photocopying is based on the simple idea that people can express more easily what they like or do not like about an actual working system.
Required:
(a)(i)Examine four guidelines required for the development of a prototype. (8 marks)
(ii)Select two facilities usually found in fourth generation languages (4GLs) and explain their application in developing a prototype system. (4 marks)
(b)Explain how the use of Information Technology (IT) can bring about improvements in productivity within a business organization. (8 Marks)
(Total: 20 marks)

QUESTION THREE
Access control is the restriction of unauthorized access to a portion of a computer system or the entire system.
Required:
a)Explain the following control techniques and their significance in the context of data security.
i)Biometric control (4 marks)
ii)Encryption (4 marks)
iii)Logical access (3 marks)
Application controls can be classified into three major categories, processing controls and output controls.

b)Describe the objective of each control and examine the techniques within each to ensure maintenance of maximum feasible levels of control. (9 marks)
(Total: 20 marks)

 

 

 

 

 

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