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MAI821S - MOBILE APPLICATIONS IN INFORMATICS - 2ND OPP - JAN 2020 |
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NAMIBIA UNIVERSITY
OF SCIENCE AND TECHNOLOGY
FACULTY OF COMPUTING AND INFORMATICS
DEPARTMENT OF INFORMATICS
QUALIFICATION: BACHELOR OF INFORMATICS HONOURS (WEB INFORMATICS)
QUALIFICATION CODE: O8BIFH
LEVEL: 8
COURSE CODE: MAI821S
COURSE NAME: MOBILE APPLICATIONS IN INFORMATICS
SESSION: JANUARY 2020
PAPER: THEORY
DURATION: 3 HOURS
MARKS: 100
SUPPLEMENTARY/SECOND OPPORTUNITY EXAMINATION QUESTION PAPER
EXAMINER(S)
MR. GABRIEL NHINDA
MODERATOR:
MR. NABOT NATHANAEL
INSTRUCTIONS
1. Answer ALL the questions.
Write clearly and neatly.
3. Number the answers clearly.
PERMISSIBLE MATERIALS
1. Pen, pencil and eraser
2. Ruler
THIS QUESTION MEMORANDUM CONSISTS OF 3 PAGES (Including this front page)
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Section A: Short Questions
1. Which programming languages are used for developing for iOS?
[25 Marks]
[2 Marks]
2. Why has mobile applications development become popular? Provide three (3)
reasons.
[6 Marks]
3. List five (5) mobile platforms that exist.
[5 Marks]
4. Explain why is security an important factor in mobile applications?
[2 Marks]
5. Everyone at some time or other gets frustrated when using a mobile device. These
effects range from feeling mildly amused to extremely angry. Discuss five (5) reasons
why such emotional responses may occur.
[10 Marks]
Section B: Descriptive Questions
[37 Marks]
1. Elaborate on five (5) types of non-functional requirements. Provide an example for
each.
[15 Marks]
2. Once the data gathering session has been conducted, interpretation and analysis can
begin. Answer the questions that follow regarding data interpretation and analysis.
a. What is the aim of data interpretations?
[2 Marks]
b. Elaborate of the two (2) task description flavors. Provide an example for each.
[6 Marks]
c. For what purpose are task analysis techniques used for?
[2 Marks]
3. Provide six (6) differences between low-fidelity and high-fidelity prototypes.
[12 Marks]
Section C: Structured Questions
[38 Marks]
1. The android platform is the worlds’ most popular mobile platform. Elaborate on the
different layers of the Android architecture.
[10 Marks]
2. Mobile application have been used to address many problems in society. Short term
insurance agents tend to move around a lot and require a mobile device for their
business. You are hired as mobile designer and you are required to design a mobile
paper prototype application. Consider the fact that the insurance consultants may
have different types of mobile phones and visit clients with varying network
connectivity. Your prototype should have the following components: new customer
leads, security component, in-app calling, new clients.
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Apply your knowledge of layout design in Android or any other platform learnt
to design and draw at least four (4) screens for the application.
[10 Marks]
Explain how you have made use of the gestalt principles in your design.
[10 Marks]
Sensors within mobile devices enhance the mobile application experience.
Recommend four (4) mobile sensors for this application.
[8 Marks]
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5
NAMIBIA UNIVERSITY
OF SCIENCE AND TECHNOLOGY
FACULTY OF COMPUTING AND INFORMATICS
DEPARTMENT OF INFORMATICS
QUALIFICATION: BACHELOR OF INFORMATICS HONOURS (WEB INFORMATICS)
| QUALIFICATION CODE: O8BIFH
LEVEL: 8
| COURSE CODE: MAI821S
COURSE NAME: MOBILE APPLICATIONS IN INFORMATICS
SESSION: NOVEMBER 2019
PAPER: THEORY
DURATION: 3 HOURS
MARKS: 100
EXAMINER(S)
SECOND OPPORTUNITY EXAMINATION MEMORANDUM
MR. GABRIEL NHINDA
MODERATOR:
MR. NABOT NATHANAEL
INSTRUCTIONS |
Answer ALL the questions.
Write clearly and neatly.
Number the answers clearly.
PERMISSIBLE MATERIALS
1. Pen, pencil and eraser
. Ruler
THIS QUESTION MEMORANDUM CONSISTS OF 5 PAGES (Including this front page)
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Section A
[25 Marks]
Question 1: Which programming languages are used for developing for iOS?
[2 Marks]
Objective and Swift
Question 2: Why has mobile applications development become popular? Provide three (3)
reasons.
[6 Marks]
2 marks each
Sample answer
Wider Choice in accomplishing tasks for customising
Business value added to services from cellular operators
Opportunities Created developers can make a reasonable income
Growth of market & availability
Affordable mobile devices
Accessible mobile devices
Question 3: List five (5) mobile platforms that exist.
[5 Marks]
1 marks each
Sample answer
Android, Firefox OS, iOS, BlackBerry, Ubuntu for mobile, Symbian
Question 4: Explain why is security an important factor in mobile applications?
[2 Marks]
Sample answer
Since mobile devices are mobile, they stand the risk of being stolen or lost. If
sensitive data is contained on these devices, it may pose a bigger risk of data loss in
larger organisations. Similarly, for individuals, this poses a risk of permanent loss of
data.
Question 5: Everyone at some time or other gets frustrated when using a mobile device. These
effects range from feeling mildly amused to extremely angry. Discuss five (5) reasons why
such emotional responses may occur.
[10 Marks]
2 marks for each
Sample answer
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When an application doesn’t work or crashes
When an application doesn’t do what the user wants it to do
When users’ expectations are not met
When an application does not provide sufficient information to let the user know
what to do
When error messages pop up that are vague or condemning
When the appearance of an interface is too noisy, gimmicky or patronizing
Section B
[37 Marks]
Question 1. Elaborate on five (5) types of non-functional requirements. Provide an example
for each.
[15 Marks]
2 Marks each, 1 mark for each example.
Sample solution
Functional requirements — capture what the product should do.
Data requirements — capture the type, volatility, size/amount and value of the
required data.
Environmental requirement or context of use — circumstances in which the
interactive product will be expected to operate.
User Requirements — capture the characteristics of the intended user groups.
Usability requirements — usability goals and associated measures for a particular
product.
Question 2. Once the data gathering session has been conducted, interpretation and analysis
can begin. Answer the questions that follow regarding data interpretation and analysis.
a. What is the aim of data interpretations?
[2 Marks]
Sample answer
To begin structuring and recording descriptions of requirements
. Elaborate of the two (2) task description flavors. Provide an example for each.
[6 Marks]
3 marks each; 1 mark for naming, 1 mark for elaboration
Sample answer
Scenarios
Informal narrative description. This describes human activities or tasks in a story
that allows exploration and discussion of contexts, needs, and requirements.
Use cases
Focus on user goals, but emphasize on user-system interaction rather than user’s
task itself.
For what purpose are task analysis techniques used for?
[2 Marks]
Sample answer
They help to investigate existing systems and current practices.
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Question 3. Provide six (6) differences between low-fidelity and high-fidelity prototypes.
[12 Marks]
2 marks per difference
Sample answers
-Low-fi
High-fi
Lower development cost
Higher development cost
Proof of concept
Inefficient for proof-of-concept designs |
Navigation and flow limitations
| Clearly defines navigational scheme
Facilitator driven
User driven
‘Useful for identifying market
‘requirements
hte
Useful for requirements gathering.
Marketing and sales tool
Not effective for requirements
gathering
Section C
[38 Marks]
Question 1. The android platform is the worlds’ most popular mobile platform. Elaborate on the
different layers of the Android architecture.
[10 Marks]
2 Marks per layer (1 mark for naming the layer, 1 marks for explanation)
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APPLICATIONS
Surface Manager
OpenGL | ES
SGL
Dyin ryg
Driver
K4eyppaadd DDtrsive7r
Media
ar als eieln
eas b 7915
SQLite
WebKit
iets
LINUX KERNEL
Camera Driver
Flash Memory.
Teh aa
Wifi Driver
Draiivlerss
f
Binder (IPC)
Bishi
Maneageesment
e Application: this layer deals with application development. The use of programming
languages such as C/ C++, Adobe AIR and mostly the Java Programming Language Also,
within this layer all apps have access to the same code libraries underlying hardware
interfaces.
e Application Framework: In this layer the developers have full access to the same framework
APIs used by core applications. The design allows simplified reuse of components in such a
way that an application can be published and be used by any other application allowing the
user power to replace components if needed
e Libraries: Android uses a set of C/C++ libraries used by different components of the Android
System. The capacity to accomplish that is usually exposed to the developers through the
Android application framework.
e Android runtime: an application runtime condition utilized by the Android working
framework). Replacing Dalvik, the procedure virtual machine initially utilized by Android.
Android Running Time plays out the interpretation of the application's bytecode into local
guidelines that are later executed by the gadget's runtime condition.
e Linux kernel layer: Whereas the kernel is used as an abstraction layer to provide services
like security, memory management, network stack, process management and driver model.
Question 2. Mobile application have been used to address many problems in society. Short term
insurance agents tend to move around a lot and require a mobile device for their business. You are
hired as mobile designer and you are required to design a mobile paper prototype application.
Consider the fact that the insurance consultants may have different types of mobile phones and visit
clients with varying network connectivity. Your prototype should have the following components: new
customer leads, security component, in-app calling, new clients.
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a. Apply your knowledge of layout design in Android or any other platform learnt to design and
draw at least four (4) screens for the application.
[10 Marks]
(2 marks per component incorporate in the design, 2 marks for correct navigation according
to chosen platform)
Here students are supposed to make use of use of design principles of the chosen platform.
The navigation structure of the chosen platform.
Similarly how best the student meets the design brief is important.
Explain how you have made use of the gestalt principles in your design.
[10 Marks]
2 marks per gestalt principle
Proximity, Similarity, Continuity, Closure, and Connectedness.
Sensors within mobile devices enhance the mobile application experience. Recommend four
(4) mobile sensors for this application.
[8 Marks]
(2 Marks for each)
Sample answer
Accelerometer.
Gyroscope.
Magnetometer.
GPS.
Proximity Sensor.
Ambient Light Sensor.
Microphone