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SPS611S - SOFTWARE PROCESS - 2ND OPP - JULY 2023 |
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n Am I BI A u n IVER s ITY
OF SCIEnCE Ano TECHnDLOGY
FACULTY OF COMPUTING AND INFORMATICS
DEPARTMENTOF SOFTWAREENGINEERING
QUALIFICATION: BACHELOROF COMPUTERSCIENCE
QUALIFICATION CODE:07BCMS
COURSE:SOFTWAREPROCESSES
DATE: JULY 2023
DURATION: 3HOUR$
LEVEL:6
COURSECODE:SPS611S
PAPER:THEORY
MARKS: 100
SECONDOPPORTUNITY/SUPPLEMENTARYEXAMINATION QUESTION PAPER
EXAMINER:
MRS ROSETHAKAYS
MODERATOR:
MR STEVENTJIRASO
THIS QUESTION PAPERCONSISTSOF 6 PAGES
{Including this front page)
INSTRUCTIONSTO STUDENTS
1. Attempt all Questions.
2. All questions have to be answered in the Answer Booklet. Clearly indicate the section and
question number for each answer.
3. The allocation of marks is an indication of the extent of the expected answer. Answering more
than expected does not result in higher marks. Keywords alone are not enough.
4. There are no books, notes or any other additional aids allowed in the examination.
5. A none-programmable calculator is permissible.
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SECTION A: TRUE/FALSE
Write all your answers in the answer booklet provided.
[10 MARKS]
Question
True
1 A software process consist of the actual performance of the
relevant activities, which may or may not be described by a
model.
2 A life cycle model define the main steps in the software life cycle
and their sequence, in particular in the software development life
cycle.
3 Software quality testing is the application of a systematic,
disciplined, quantifiable approach to the development,
operation, and maintenance of software; that is, the application
of engineering to software.
4 Testing is the activity in which a system or component is executed
under specified conditions, the results are observed or recorded,
and an evaluation is made of some aspect of the system or
component.
5 Requirements testing and analysis is an iterative process with
·continual feedback fromeach activity to other activities.
6 Ethnography is an effective way for discovering requirements
from the way in which people actually work, rather than the way
iii which business process definitions say they ought to work.
7 Project Metrics are the measures of Software Project and are
used to monitor and control the project.
-8
System requirements are intended to describe the system's
functions and features from a user perspective.
9 With legacy systems business policies and rules are definitions of
how the business should be carried out and constraints on the
business. Use of the legacy application system may be embedded
in these policies and rules.
10 Agile methods are not well suited to largescale system
development with the development teams in different places and
where there may be complex interactions with other hardware
and software system.
False
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SECTION B: MULTIPLE CHOICE
Write all your answers in the answer booklet provided.
[10 MARKS)
1. At its most general, a scenario may include:
A. A description of what the system and users expect when the scenario starts.
B. A description of the normal flow of events in the scenario.
C. A description of what can go wrong and how resulting problems can be handled.
D. All of the above
2. During the requirements validation process, different types of checks should be carried out on
the requirements in the requirements document. These checks include:
A. Validity checks
B. Consistency checks
C. Verifiability
D. All of the above
3. When a standard format is used for specifying functional requirements, the following
information should be included:
A. A description of the function or entity being specified.
B. A description of its inputs and the origin of these inputs.
C. A description of its outputs and the destination of these outputs.
D. All of the above
4. Product metrics may measure:
A. How easy is the software to use
B. How easy is the user to maintain
C. The quality of software qocumentation
D. All of the above
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5. Which of the following process is not a part of Software Development:
A. Requirement gathering
B. Software design
C. Implementation
D. Product management
6. What is a Functional Requirement?
A. The tasks the program must complete
B. The tasks the program should not complete
C. The tasks the developer thinks should be completed
D. None of the above
7. What does SDLCstand for?
A. System Development Line Code
B. Software Design Life Cycle
C._Software Development Life Cycle
D. System Development Life Cycle
.
..
8. This software development model represents the progress as a linear downward flow:
A. RAD Model
B. Waterfall Model
C. Iterative Model
D. Big bang Model
9. Which of the following statements has nothing to do with the Evolutionary Process Model?
A. WINWIN Spiral Model
B. Concurrent Development Model
C. Incremental Model
D. All of the above
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10. Agile Software Development is based on which of the following type?
A. Incremental Development
B. Iterative Development
C. Both Incremental and Iterative Development
D. Waterfall Development
SECTION C:
Write all your answers in the answer booklet provided.
Differentiate between the following terms: [20 Marks]
[40 Marks)
1. Plan driven processes; Agile processes (1 similarity and 1 difference). (4 marks)
2. Software re-engineering; Refactoring (4 marks)
3. Redundancy; Diversity (4 marks)
4. UML diagram; Use case Diagram (4 marks)
5. Regression testing; Automated tests (4 marks)
Define each of the following terms: [20 Marks]
5. Explain why legacy systems should be thought of as socio-technical systems rather than simply
software systems that were developed using old technology (6 marks)
6. Briefly describe the three (3) main types of software maintenance. (6 marks)
7. Code-and-fix is a development model that is commonly used. Give three (3) disadvantage of
Code-and-Fix model. (3 marks)
8. Provided below are sample error distribution of the different classifications of the errors. Let us
assume a sample hypothetical project called Testing_Docs with 325 KLOCand the development
effort hours of 540 man-hours. The error distribution is given in the below table. Lookup the below
table for the number of design and development errors detected during those phases. Calculate
the Development Errors Removal Effectiveness (DERE)for the project based on the given data:
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Table: Error detected Distribution
Simple
Design & Dev Errors
6
Code & Testing Errors
21
Defects in 1 year of
9
maintenance service
Average
7
12
6
Complex
2
7
3
Total
15
40
18
KLOC=classic metric that measures the size of software by thousands of code lines.
NDE = total number of development (design and code) errors) detected in the development
process.
WCE = weighted total code errors detected by code inspections and testing.
WDE = total weighted development (design and code) errors detected in development process.
NVF= number software failures detected during a year of maintenance service.
WYF = weighted number of software failures detected during a year of maintenance service.
(5 marks)
SECTION D: COMPUTATIONAL/ SENARIO
Write all your answers in the answer booklet pro_vided.
Answer each of the following questions briefly.
(40 Marks)
1. Develop a use case diagram for a simple bank ATM system. Consider two kinds of accounts,
savings and checking account, transactions namely deposits, withdrawals, print statement, and
·check balance. The customer is authenticated by inserting a sim and entering a personal
identification number (pin). (20 marks)
2. Based on your experience with a bank ATM draw a sequence diagram for the ATM system.
(20 marks)
********** End of Exam Paper**********
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