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INF3720 EXAM PACK 2023
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INF3720EXAM
PACK
2023
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2 INF3720
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Question 1 20 Marks
Answer all questions in this section. Choose the correct answer and write it on your answer sheet. Each
question carries 2 marks.
1.1. Which definition of interaction design is correct?
a. The extent to which a product provides the right kind of functionality so that users can do what
they want to do
b. Designing interactive products to support the way people communicate and interact in their
everyday lives
c. Ways of restricting the kinds of user interaction or interpretation that can take place at a given
moment
d. How good a product is at doing what it is supposed to do
1.2. The fact that myUnisa follows a standardised format and structure for all modules implies that the
following usability goal has been met:
a. Efficiency
b. Utility
c. Safety
d. Memorability
1.3. Assume that you have been contracted to do the interactive design for a local town’s electronic
library system. You have designed a non-functional collection of screens that demonstrate how a
library user will borrow a digital book. This activity is an example of:
a. Visceral design
b. Designing alternatives
c. Prototyping
d. Establishing requirements
1.4. Integrating interaction design with an agile software development approach is useful because:
a. An agile approach incorporates tight iterations, feedback and collaboration with the customer
b. By using an agile approach, developers can start coding immediately to save time and costs
c. An agile approach does not require that all critical design elements are captured in a design
document
d. An agile approach requires all software development processes to be specified before
development begins to ensure rigour
1.5. Virtual shopping carts, baskets, shelves, checkouts, cash registers, payment options and alternative
online shopping techniques show:
a. How future scenarios (visions) enable users to interact with information in their everyday lives
b. How conceptual models provide scenarios of how society can use future generations of
imagined technologies
c. How theories help identify factors relevant to the design and evaluation of interactive products
d. How seemingly similar tasks can have quite different conceptual models and metaphors
underlying their design
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1.6. People are inherently social. How have various digital technologies enabled us to overcome social
distance, even while physical distancing measures have been in place during the COVID-19 pandemic
lockdown?
a. Face-to-face meetings have been replaced to a large extent by online meetings using sound and
video, or sound only
b. Much informal verbal communication has been replaced by texting and using emojis
c. Creating, sending and forwarding humoristic video and sound clips have replaced the telling of
jokes to relief stress and anxiety
d. All of the above
1.7. Pilot studies are used to:
a. Study user experience of the digital instruments used by airplane pilots
b. Do a small trial of the main study to make sure that the proposed research method is viable
c. Steer a discussion taking place during a focus group interview
d. Administer the recording of HCI research data
1.8. Suppose that you have been contracted to discover the requirements of a new fitness app. Which
option below describes the scenario correctly?
a. An athlete wants to monitor the fitness indicators (heartbeat, calories burnt, duration) of his/her
workout
b. The system responsibility includes a menu of various exercises while the user intention includes
starting and ending workout sessions
c. The scenario lists a generalised use case showing a detailed set of the specific steps
d. The scenario is rendered in technical terms, e.g. the fitness app tracks the speed, duration and
number of steps, calculates the average heart rate and stores the data in the cloud-based
database
1.9. The following are appropriate usability goal requirements for an interactive app that will locate
places in a shopping centre and provide routes for users to reach their destinations:
a. The app needs to access the GPS location data for the user, have maps of the centre and requires
knowledge about pathways for disabled people
b. The app should be cognitively stimulating for potential groups of users with different
characteristics
c. The app must be satisfying, helpful and enhance sociability amongst users
d. New users must be able to use it immediately, efficiently and safely
1.10 Which definition of “hypothesis” below is correct within the context of conducting experiments
during evaluation design?
a. A hypothesis is a guess or prediction about the way users will perform with an interface
b. A hypothesis is a t-test that validates a guess or prediction about the way users will perform
with an interface
c. A hypothesis reveals if the differences between experiments conducted in different conditions
are significant
d. A hypothesis is a dissertation that contains the results of conducted experiments
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Question 2 45 marks
Case study: The case study is hypothetical.
Informatics Tutoring Services (ITS) is a private tutoring company in South Africa that provides
tutoring services to students who are enrolled for diplomas and degrees in Information Systems at
various colleges and universities. In the past, ITS’s tutors have been using WhatsApp to communicate
with their students, but the company has decided to consider other options due to concerns about
WhatsApp’s new terms and conditions that will be implemented in 2021. ITS considers the following
alternatives:
• Developing its own Africanised messaging app that will enhance the digital experience of its
clients
• Adopting Telegram while suggesting modifications to the owner of the app (Telegram
Messenger) to localise the app for the South African market
Assume that you have been appointed by ITS as an HCI expert. Management has tasked you to do a
user experience evaluation of Telegram as a possible alternative. ITS decides to adopt Telegram and
you have to manage all aspects of interaction design (ID) related to the possible future enhancements or
alternatives planned for the South African market.
Question 2.1
As an interaction designer, briefly describe interactive technologies that can be used to design the ITS
app that is accessible and inclusive to meet the needs of the following group of users. Describe in point
form the technologies per each group of users. (6 marks)
Users Technology description (3 marks each)
Blind users (persons that
cannot see)
Deaf users (persons that
cannot hear)
Question 2.2
There is a fine line between an interaction that works and that is usable. Designing interactions that
work and are usable is achievable if design principles are appropriately applied. Discuss how you
would apply the following principles when designing the ITS app. (15 marks)
Principle Description (3 marks each)
Visibility
Feedback
Constraints
Consistency
Affordance
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