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Bit 2112: Systems Analysis And Design Question Paper

Bit 2112: Systems Analysis And Design

Course:Bachelor Of Science In Information And Technology

Institution: Dedan Kimathi University Of Technology question papers

Exam Year:2010

KIMATHI UNIVERSITY
COLLEGE OF TECHNOLOGY
SPECIAL/SUPPLIMENTARY EXAMINATIONS -2009/2010
FIRST YEAR SEMESTER TWO EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE INFORMATION AND TECHNOLOGY
BIT 2112: SYSTEMS ANALYSIS AND DESIGN
DATE: TIME: 2HOURS
Instructions: Answer Question 1 and Any Other Two.
QUESTION 1: Compulsory (30 marks)
(a) Define Systems development methodology (2marks)
(b) Differentiate between logical design and physical design. (4marks)
(c) List and explain FOUR main system implementation strategies (Going Live) (8marks)
(d) State four objectives of a preliminary investigation. (4marks)
(e) Differentiate between Database and Database Management Systems (2marks)
(f) How can organizations protect themselves from viruses? (4marks)
(g) Briefly explain the main factors that must be considered by a systems analyst before designing a system for implementation on a computer. (6marks)
QUESTION TWO
(a) During the investigation phase the following techniques enable the analyst to correct facts about the system under study:
(i) Interviewing
(ii) Questionnaire
(iii) Observation
Briefly explain each of these techniques, giving the advantages and disadvantages of each. (12 marks)
(b) Draw a decision tree to represent the following procedure for development of new employees in an organization "Employees with a relevant degree may either join the graduate entry program or provided they are in the top 15% in special aptitude tests undergo accelerated management training. Those with other degrees are illegible for the graduate entry program only. Employees without a-degree but with other qualifications join the main intake stream. Employees without any qualification are taken on at clerical grades. (8 marks)
QUESTION THREE
a) Candidates are accepted for employment if they pass the interview and their qualifications and reference are satisfactory. If they pass the interview and the qualifications or reference (but not both) are unsatisfactory, a job for probationary period is offered. In all other circumstances the candidate’s application is rejected. Design a decision table (11marks)
(b) Explain any three advantages of database systems and two disadvantages of database systems. (5 marks)
(c) Explain the desirable qualities of a database system (4 marks)
QUESTION FOUR
(a) What is Systems Analysis and Design? (2marks)
(b) Highlight one advantage and two disadvantages of traditional systems development lifecycle (3 marks)
(c) State and briefly explain any four roles of a systems Analyst. (8 marks)
(d) Define the term “structured walkthrough” (2 marks)
(e) With the aid of a diagram and a suitable example write brief notes on the Decision trees for modelling the decision logic in information system. (5 marks)
QUESTION FIVE
(a) State and explain FOUR types of maintenance (8 marks)
(b) Explain any TWO types of dialogue methods between the user and the computer, stating an advantage of using each (4 marks)
(a) Explain FOUR prototyping stages followed when developing small systems (8 marks)

Bit 2112: Systems Analysis And Design Question Paper

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