Exam (elaborations)
COMPUTER HUMAN INTERACTION
- Institution
- University Of South Africa (Unisa)
Exam of 7 pages for the course Human Computer Interaction I at Unisa (EXAM REVISION)
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All the best, as you prepare for your exams: Prepared by N. Makama (INF1520-eTutor)Human Computer Interaction: INF1520_22_Y_2E September 2022
Exam Preparation: Self-assessment 3 - Multiple-Choice Questions
1. Which of the following are, according to Shneiderman, aspects which must be
characterised in order to recognise the diversity of users?
A. Usage profiles.
B. Task profiles.
C. Interaction styles.
D. Typical errors.
E. Language use.
Options:
1. A, B and C
2. C, D and E
3. A, C and E
4. All of the above.
5. B, C and E.
2. Shneiderman suggests ‘complete sequences’ as a technique which can reduce
errors by ensuring complete and correct actions. An example of a complete sequence
is:
1. When a user types a left parenthesis, the system displays a message
somewhere on the screen that the right parenthesis is outstanding. The message
disappears when the user types the right parenthesis.
2. Command completion, which will display complete alternatives as soon as the
user has typed the first few letters of a command.
3. When a user correctly matches a menu item and a button that performs the same
function.
4. Logging onto a network requires that the user perform a sequence of actions.
When the user does this for the first time, the system can store the information
and henceforth allow the user to trigger the sequence with a single action. The
user is then not required to memorise the complete sequence.
5. None of the above.
, All the best, as you prepare for your exams: Prepared by N. Makama (INF1520-eTutor)
3. The following are advantages of graphical user interfaces:
A. Visibility
B. Cross cultural communication
C. Screen clutter
D. Impact and animation.
Options:
1. A and C
2. A, B and C
3. B, C and D
4. A, B, C and D.
5. A, B and D
4. The disadvantages of speech interfaces are:
A. They are easy to develop.
B. They may misinterpret what the user is saying.
C. Voice responses may appear unnatural.
D. They may be adaptable to different accents.
Options:
1. A and B
2. A and C
3. B and C
4. B and D
5. C and D.
5. The shopping cart used in many e-commerce web sites is an example of:
1. A good mapping
2. A conceptual model
3. An interface metaphor
4. Internationalisation
5. All of the above.
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