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Cisy 222: System Analysis And Design Question Paper

Cisy 222: System Analysis And Design

Course:Computer Science And Business Information

Institution: Kenya Methodist University question papers

Exam Year:2012

KENYA METHODIST UNIVERSITY
END OF 2''ND ''TRIMESTER 2012 (DAY) EXAMINATIONS
FACULTY : COMPUTING AND INFORMATICS
DEPARTMENT : COMPUTER SCIENCE AND BUSINESS INFORMATION
UNIT CODE : BBIT 231/CISY 222
UNIT TITLE : SYSTEM ANALYSIS AND DESIGN
TIME : 3 HOURS

Instructions:
Answer question one and two other questions.
Question One
What are the four system design methodologies?
(4mks)
Give two benefits of using group support system in JAD. (2mks)
Define the following terms:
System
Modularity
Methodology
(4mks)

An interface exists at the point where a system meets its environment. What are the six functions of an interface?
(6mks)

Who are the two people involved in a system development process and describe at least the role of each person.
(3mks)

In legal and contractual feasibility, what are the three possible considerations to be included?
(3mks)
Describe three guidelines for drawing data flow diagrams. (3mks)
Designing of a new system can be divided into several elements, name two.
(2mks)
Describe three methods of interacting with a system when designing interface and dialogues.
(3mks)
Question Two
Briefly explain four types of ’information systems and give example of each type
(8mks)
Using a diagram briefly explain the system development life cycle. (12mks)
Question Three
System analyst are the key individuals in the system development project. Describe their roles.
(5mks)
Describe the three components of computer-aided software engineering.
(3mks)
Define the following terms
Information repository
Data dictionary
(2mks)
Briefly explain the three principle activities in project identification and selection.
(6mks)
Define feasibility study and list seven categories of feasibility study. (4mks)
Question Four
Define the term analysis and describe the three processes in this phase.
(4mks)
What are the traditional methods of determining requirements? (5mks)
Describe the situation when prototyping is most useful for requirements determination.
(8mks)
In process modeling, what are the three models used in the process? (3mks)
Question Five
Briefly explain two rules governing each symbol in data flow diagrams.
(5mks)
In a given production process, a product is passed fit for sale if it pass mechanical and electrical tests, and has the correct dimensions, if it fails the mechanical or electrical tests but not both. It is sent back to the workshop for repairs in all other cases the product is rejected.
Draw a decision table for the above narrative, illustrating all the stubs for drawing such a table.
(5mks)
Draw a decision tree to represent the same processing logic. (5mks)
Write the structured English for the above.
(5mks)

Cisy 222: System Analysis And Design Question Paper

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