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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) Describe four problems that are commonly associated with the traditional SDLC. (6 Marks) (b) Identify six challenges a system analyst is likely to encounter in his or her work. (6 Marks) (c) Describe any method of system change over along with its advantages and disadvantages. (4 Marks) (d) Differentiate between the following: (i) Decision support system and expert system (ii) Open system and closed system. (4 Marks) (e) Mention and describe any four components of a CASE tool. (6 Marks) (f) Explain one method of fact finding giving the circumstances, advantages and disadvantages. (4 Marks)
QUESTION TWO – (20 MARKS)
(a) Information systems (IS) projects can be initiated by business managers for various reasons. In both conventional and structured methodologies, feasibility studies are normally conducted early in the IS project. Suggest four common reasons why managers would initiate an IS project. (4 Marks) (b) On conclusion of a feasibility study, highlight four decisions that can be made regarding the future of the IS project. (4 Marks) (c) Describe any four activities involved at the implementation phase. (4 Marks)
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(d) In recent years, prototyping techniques have emerged as ways of developing information systems. Evaluate prototyping in terms of its potential advantages and disadvantages. (8 Marks)
QUESTION THREE – (20 MARKS)
(a) Discuss the importance of standards in systems analysis and design (6 Marks) (b) Discuss four steps followed in risk management processes. (4 Marks) (c) MUCST offers correspondence courses to students. Each course lasts 20 weeks and is based on a weekly study module and progress test. At the end of the course students sit an invigilated examination. The University Registrar deals with enquiries and applications, students who apply and have sufficient qualifications are asked to register by completing and submitting an application form. After approval by the Academic director, the application form is returned to the Registrar who creates a student file. The Accounts department receives the application form and using information from the student file creates an invoice that is sent to the student. Payments made are registered on the invoice file. The first batch of student material and tests is issued from the library only to students who have paid fees (this information is taken from the invoice file). Progress tests are marked by academic staff and the results, together with comments, are progress tests when a student has returned test answers from the previous week. (i) Data Flow Diagram (DFDs) use standard symbols making them popular in process modeling. Describe four standard symbols used in DFDs. (2 Marks) (ii) Construct a level 1 Data Flow Diagram for the MUCST. (6 Marks) (d) Identify and explain four constrains of system design? (2 Marks)
QUESTION FOUR – (20 MARKS)
(a) No matter how well the users of a system are satisfied, the system cannot be considered complete and successful until documented to a high standard. Briefly describe six reasons wy much emphasis is placed on high quality documentation. (6 Marks) (b) The consultant has identified a number of activities, their preceding activities and time estimates for the redefinition projection (see below) Activity Activity description Preceding activity Time (weeks) A Define and agree on terms of reference - 2 B Re-define functional requirements A 2 C Re-define functional requirements A 4 D Define process models B 4 E Models B 1 F Define static infrastructures requirements C 3 G Prepare final report and recommendations D,E,F 1
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Required (i) Draw a network chart for this project (4 Marks) (ii) Identify the critical path (2 Marks) (iii)State the estimated duration of the project (2 Marks) (iv) If the activity E overruns by 2 days, what effect does it have on the duration of the project? (2 Marks) (c) Despite all the tools and techniques available to project projects costing large amounts of money may still fail for one reason or another. Write short notes suggesting the reasons for systems failures. (4 Marks)
QUESTION FIVE – (20 MARKS)
(a) In systems development, the following issues are considered to be important: Producing and maintaining documentation, adhering to development standards, maintaining a logical data dictionary and prototyping. With reference to the above for issues, briefly describe what a CASE tool is. Explain four advantages of CASE tool offers the systems developer compared to using manually produced and maintained diagrams, standards and documents. (5 Marks) (b) Some of the tasks involved in system implementation include training, testing and file conversion. Identify five objectives of training? (5 Marks) (c) to maintenance, but the design phase is the most importance of all statement. (4 Marks) (d) Briefly explain any two types of feasibility study. (6 Marks)
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