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SAD621S - SYSTEMS ANALYSIS AND DESIGN - 2ND OPP SUPL - JAN 2023 |
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nAm I BIA UnlVERSITY
OF SCIEnCE Ano TECHnOLOGY
FACULTY OF COMPUTING AND INFORMATICS
DEPARTMENT OF INFORMATICS JOURNALISM AND MEDIA TECHNOLOGY
QUALIFICATION : BACHELOR OF INFORMATICS
QUALIFICATION CODE: 07BAIT
COURSE: SYSTEMS ANALYSIS AND DESIGN
DATE: JANUARY 2023
DURATION: 2 Hours
COURSE LEVEL: NQF LEVEL6
COURSE CODE: SAD621S
SESSION: 2
MARKS: 80
SECOND OPPORTUNITY/ SUPPLEMENTARY EXAMINATION QUESTION PAPER
EXAMINER:
DR EDMORE CHIKOHORA
MR GABRIEL NHINDA
MS SINTE MUTELO
MODERATOR:
Mr GEREON KOCH KAPUIRE
THIS EXAMINATION PAPER CONSISTS OF 6 PAGES
(INCLUDING THIS FRONT PAGE}
Instructions for the students
1. Attempt all questions
2. Use a separate booklet to write your answers
3. Please ensure that your handwriting is legible, neat and presentable
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Section A:
(20 marks]
1. The main purpose of the system investigation phase is to produce?
A. A system design report.
B. A system requirement report.
C. A systems feasibility report.
D. All of the above.
E. None of the above.
2. Structured design produces computer programs that are?
A. Easily.
B. Maintained.
C. Easily understood.
D. Both (a) and (b).
E. None of the above.
3. The systems conversion technique of totally removing the existing system and immediately
implementing the new system is called a;
A. Pilot conversion.
B. Multiprocessing.
C. Parallel run phased conversion.
D. Direct cut-over.
E. None of the above.
4. A systems conversion method in which users, being used to an old system, continue to use
the old system, alongside the new system, is called;
A. Pilot conversion.
B. Multiprocessing.
C. Parallel - run phased conversion.
D. Direct cut-over.
E. None of the above.
5. The feasibilities studied in preliminary investigation is (are);
A. Technical feasibility.
B. Economic feasibility.
C. Operational feasibility.
D. All of the above.
E. None of the above.
6. The strategy for eliciting information regarding the user's requirements is (are);
A. Prototyping.
B. All of the above.
C. None of the above.
D. Asking questions.
E. Obtaining information from the present system
7. The Systems Analyst learns of the manager's information needs through the use of;
A. Mail survey.
B. In - depth interview.
C. Controlled experiment.
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D. Observation.
E. Prototyping.
8. Which of the following would not be a major deliverable of the structured systems analysis
phase?
A. Data dictionaries.
B. Data flow diagrams.
C. Entity relationship diagrams.
D. Prototype model.
E. Use case diagram.
9. In a ___ one module of the new Information System is activated at a time.
A. System Development Life Cycle.
B. CASEtool.
C. Phased Conversion.
D. Successfactors.
E. Direct conversion.
10. The first step in the problem-solving process is to __ _
A. Plan the algorithm.
B. Analyze the problem.
C. Desk-checkthe algorithm.
D. Evaluate and modify (if necessary)the program.
E. Draw an Entity Relationship Diagram.
11. In Systems Analysis and Design, Coding and testing are done in which manner?
A. Ad hoc.
B. Cross-sectional.
C. Bottom-up.
D. Top-down.
E. Step-wise.
12. Which of the following statements are correct about the "The black-box concept"?
A. Is invoked by describing a system in terms of inputs and outputs, leaving the
transformation process a black box.
B. Assumes that the black box is independent.
C. Assumes that inputs and outputs will remain stable.
D. All of the above.
E. None of the above.
13. In relational database design, a group of related fields, is known as a;
A. Tuple.
B. Schema.
C. Records.
D. File.
E. Relation.
14. The short statements that represent the steps the computer needs to follow to solve a
problem are called;
A. Flowcharts.
B. Flow diagrams.
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C. IPO charts.
D. Pseudo code.
E. Control statements.
15. The approach used in top-down analysis and design is_.
A. To prepare flowcharts after programming has been completed.
B. To identify a top - level function and then create a hierarchy of lower level modules and
components.
C. To identify the top - level functions by combining many smaller components into a
single entity.
D. All of the above.
E. None of the above.
16. Which of the following is (are) common reason(s) for changing an Information System in an
organization?
A. New requirements.
B. New technology.
C. Problems in the existing system.
D. All of the above.
E. None of the above.
17. Which of the following statements is not true?
A. A structured chart is a sequential representation of program design.
B. The Real-Time system is a particular case of an on-line system.
C. Batch totals are not incorporated while designing real-time applications.
D. 4Gls are used for application prototyping.
E. None of the above.
18. A System Analyst designs a new system by;
A. Identifying subsystems and the interfaces between subsystems.
B. Adopting a developed system to the present environment.
C. Developing the system as a large, single unit.
D. Propose alternatives to the current system.
E. Phasedsystem conversion.
19. Backup and recovery procedures are primarily implemented to;
A. Handle the contingency when a file gets corrupted.
B. To provide data redundancy.
C. To show different versions of data and programs.
D. All of the above.
E. None of the above.
20. The procedure for evaluating the relative performance of different computers, is done using
a process called;
A. Batch processing
B. Sequential processing
C. Bench marking
D. All of the above
E. None of the above
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Section B:
[30 marks]
Question 1:
"Most organizations use SWOT analysis as a strategic planning and management technique for
competitive advantage".
Basedon the above insert, answer the following questions.
i. What is SWOT Analysis?
[2 marks]
ii. Using an example of your choice, explain why SWOTAnalysis important to businesses
[4 marks]
iii. You have been appointed as a consultant for ABCHoldings, a retail organization that would
like to expand its businesses into neighboring countries. Describe how you will write a SWOT
analysis for ABC Holdings.
[6 marks]
Question 2:
In a software development project, Systems Analysist provide different types of maintenance.
Describe using examples the different types of maintenance listed below;
i. Corrective maintenance.
[3 marks]
ii. Adaptive maintenance.
[3 marks]
iii. Perfective maintenance.
[3 marks]
iv. Preventive maintenance.
[3 marks]
Question 3:
"InSystems Analysis and Design, Systems Changeover is the process of putting a new Information
System online and retiring the old system".
Explain the System Changeover methods listed below:
i. Parallel operation
ii. Phasedoperation
iii. Pilot operation
[2 marks]
[2 marks]
[2 marks}
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'(
Section C:
[30 marks]
Question 1:
The Critical Path Method takes a task's start time, its duration, and finish time to figure out which
activities deserve the most attention (i.e. are "critical" for the project).
Carefully study the data given in Table 1 (The building project) and answer the questions that follow:
Table 1: The Building Project
Task ID
A
B
C
D
E
F
G
H
Task Description
.,,.
Project start
Buy material for A
Buy material for B
Build A
Build B
Polish and finish B
Join A and B
Project finish
Task
Prede~essors
A
A
B,C
B, C
E
D, F
G
,, Task Duration
(days)
0
10
20
30
20
40
20
0
(a) Using the information provided in Table 1, draw a PERTChart showing all the Tasks,
Predecessorsand Duration.
[24 marks]
(b) Calculate the critical path for the Building Project.
[6 marks]
END OF EXAMINATION
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