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Course Name:  Information and Communication Technology
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Course Level:  Diploma
Sub Level:       Module II
Course Unit:   System Analysis and Design
Exam body:    KNEC
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1. Explain the following terms as applied in system theory: (i) Entropy; (ii) Feedback. ()
2. Outline four objectives of system analysis ()
3. Differentiate between cybernetic and deterministic system stating an example in each case ()
4. With the aid of a flowchart, describe the process of developing a system using type 1 prototype. ()
5. State three components of a data dictionary citing an appropriate example for each. ()
6. Distinguish between feasibility study and system study ()
7. Explain the term soft system thinking ()
8. Describe the application of the following types of coupling in a system stating one disadvantages in each case: (i) Content; (ii) Control. ()
9. Outline four qualities of a good system documentation ()
10. Explain two uses of documentation ()
11. Distinguish between operational level and tactical level information ()
12. Judith would like to collect the following data about a system she intends to develop: • Live data which will be used to test the system • The end user opinion about the introduction of the new system • Details of the operations in the organization. For each of the above cases, identify the most appropriate fact finding techniques she would apply justifying your answer ()
13. Explain two objectives of structured walkthrough ()
14. Outline four methods of fact-recording data collection ()
15. Differentiate between statistical method and conceptual model as applied in system analysis ()
16. Explain the following terms as applied in SSM: (4 marks) (i) Rich picture; (ii) Root definition ()
17. Explain two drawbacks of the phased approach ()
18. Define the term Rapid Application Development ()
19. Explain two principals of risk management during development of a new system ()
20. Outline four causes of system obsolescence ()
21. Explain the term system enhancement ()
22. Explain the following terms as applied in software system; (i) Robustness; (ii) Maintainability. ()
23. During evaluation of an information system, the following factors were considered about the interface: • Whether all the information needed by the user appears on the screen; • Time used to carry out a task, system recovery or the failure rate of the system; • Mental effort required by the user to use the interface; • Ease of learning to use the interface and help incorporated. For each ()
24. Outline four factors that should be considered when designing processes in a system ()
25. Distinguish between processing and organizational file requirements ()
26. State four guidelines of system testing ()
27. Describe two types of test data citing a reason for including each in a test plan ()
28. State four roles of design during system development ()
29. A bus company has several buses and drivers. The company has one garage and covers several routes. At any one time, some buses will be on routes whist others are garaged. Individual buses are used on any routes and drivers are allocated to any bus. Each route has only one bus travelling on it at any one time. Passenger may have to take more than one bus on a journey. (i) Identify four entities in ()

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