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Decision Support Systems(Bbit 421) Question Paper

Decision Support Systems(Bbit 421)

Course:Computer Information Systems And Business Information Technology

Institution: Kenya Methodist University question papers

Exam Year:2010

TIME : 2 HOURS
INSTRUCTIONS Answer Question ONE and any Other TWO Questions

Question 1
a) Define the following terms as used in a DSS:
i) Satisficing (2marks)
ii) Rationality (2marks)
iii) Management problem (2marks)
iv) ‘What if’ analysis (2marks)
v) DSS Generator (2marks)
b) Describe the decision making process giving relevant examples (10marks)
c) Describe the basic architecture of a decision support system. (10marks)

Question 2
a) Distinguish decision support systems from other kinds of computer-based systems such as executive information systems and transaction processing systems (10marks)
b) Discuss the potential benefits DSSs can offer, plus limitations on DSS abilities (10marks)

Question 3
a) Describe important steps that can occur during the process of building a decision support system. (12marks) b) Discuss the advantages of building a DSS in-house as opposed to purchasing it off-the-shelf (8marks)
Question 4
a) Describe the main features of each of the following knowledge management techniques:
i) Solver management (3marks)
ii) Spreadsheet management (3marks)
iii) Program management (3marks)
iv) Menu management (3marks)
b) i) Define the term Group Decision Support System (GDSS) (2marks)
ii) Explain the characteristics of a GDSS (6marks)

Question 5
a) Define the term model and briefly explain four types of models in relation to decision making (10marks)
b) Recently share prices in Kenya have been difficult to predict given the credit crisis in global financial markets. As a result decision support systems, which rely only on simple linear forecasting models of past trends, are performing badly. Explain how the introduction of an expert system component might enhance the performance of such decision support system. (10marks)

Decision Support Systems(Bbit 421) Question Paper

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