Hbc2124:Information Systems Analysis And Design Question Paper
Hbc2124:Information Systems Analysis And Design
Course:Bachelor Of Commerce
Institution: Meru University Of Science And Technology question papers
Exam Year:2011
QUESTION ONE (30 MARKS)
a. Discuss the roles of a JAD session leader (6 Marks) b. Discuss the disadvantages of the traditional system development life cycle (SDLC) (6 Marks) c. Discuss four steps followed in a risk management process (4 Marks) d. Differentiate between: i. Structured and unstructured decisions (2 Marks) ii. Decision support systems and expert system (2 Marks) e. The success of any system development ventures is wholly dependent on the methodology used. Discuss the features and the advantages of object-oriented analysis and designing methodology. (3 Marks) f. Briefly explain what WIMP entails (3 Marks) g. State and explain any two methods of fact finding (4 Marks)
QUESTION TWO (20 MARKS)
a. There are many ways of converting to a new information system. Describe any three changeover methods, and comment on the strengths and weaknesses of each (6 Marks) b. Feasibility study should be conducted before any serious Information system development process is initiated. Summarize the contents of the feasibility study report (4 Marks) c. Outline the any four factors to be considered when acquiring hardware (4 Marks)
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d. Outline any three criteria for selecting an appropriate methodology for developing Information systems (6 Marks)
QUESTION THREE (20 MARKS)
a. Expert systems perform tasks at the level of a human expert. Identify the basic problems faced by the developers when designing expert systems (6 Marks) b. (2 Marks) c. In recent years, prototyping techniques have emerged as ways of developing information systems. Prototyping approaches have often relied up0on the support of computer. Assisted systems engineering (CASE) TOOLS. Evaluate prototyping in terms of its potential advantaged and disadvantages (6 Marks) d. Standards are important in most aspects of an information systems (IS) project, including its documentation .Briefly describe the benefits for standards in information systems development (6 Marks)
QUESTION FOUR (20 MARKS)
a. Briefly discuss an four basic competitive strategies that businesses can implement to counter the threats of competitive forces that they face in the market (4 Marks) b. Despite all the tools and techniques available too project leaders and systems analysts, projects costing large amounts of money may still fail for one reason or another. Write short notes suggesting the reasons for systems failures (6 Marks) c. Project managers require a wide range of skills to be effective. Identify these skills and briefly explain their impacts on the project management functions (4 Marks) d. Draw a network diagram from the following information .Find the c4riticalpath for the project (6 Marks) Activity Preceding activity Duration(days) A ---- 4 B A 2 C B 10 D A 2 E D 5 F A 2 G F 4 H G 3 J C 6 K C, E 6 L H 3
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QUESTION FIVE (20 MARKS)
a. Briefly explain the main areas an organization would consider when reviewing the performance of a system (5 Marks) b. Security of information systems is the protection of availability, confidentiality and integrity. Outline five ways of minimizing risks of the threats to information system security (5 Marks) c. Computer-based information systems offer a set of capabilities to be brought out in the development of information systems. Highlight five ways in which computerbased information systems positively impact organizations (5 Marks) d. When the customer places the order, one of the sales staff prepares the order and writes the bill. If there is an insufficient quantity of items on hand, a back-order is set up for the missing items. The available items are shipped and a bill is prepared and sent for those items. The customer is billed for the back-ordered items when they are shipped Quantity purchases over a specified limit are sold at discounted prices. However, the discount applies only to wholesale customers. Retail customers do not receive the discount, even if they purchase more than the minimum quantity level All retail customers pay sales taxes on their orders. Wholesale customers do not pay taxes, provided they have a state tax exemption from on file (otherwise, they also must pay sales taxes on their orders) All bills are mailed to the customers unless they pay for the order when they receive their merchandise.
Required Develop a complete decision table, showing all conditions and actions, together with appropriate decision rules. (5 Marks)
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