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Bct2306:Computer Security Question Paper

Bct2306:Computer Security

Course:Computer Technology

Institution: Meru University Of Science And Technology question papers

Exam Year:2010

1
QUESTION ONE – 30 MARKS
a. Define the following terms as used in Human Computer Interaction:
i. Metaphor (2 Marks)
ii. Interactive design (2 Marks)
iii. Conceptual model. (2 Marks)
b. Briefly explain the goals of HCI. (6 Marks)
c. Briefly explain the main factors that determine the HCI goals. (4 Marks)
d. Briefly explain the four basic activities in the interaction design process. (4 Marks)
e. The human eye has a number of limitations. Give three examples. (4 Marks)
f. For one of the limitations identified in (e) above, describe how this should be taken into account in the
design of a visual interface. (6 Marks)
QUESTION TWO – 20 MARKS
a. Briefly explain the necessary questions to ask when designing HCI (3 Marks)
b. Briefly explain the human factor in HCI design (4 Marks)
c. Explain six design principles. (6 Marks)
d. State the importance of usability in HCI (3 Marks)
e. Describe the “web usability factors” that you must consider when designing a web based system.
(4 Marks)
2
QUESTION THREE – 20 MARKS
a. Briefly explain the “DECIDE” framework guide for evaluation. (6 Marks)
b. Describe the different types of interactive styles, giving examples of applications for which each style is
particularly suited. (6 Marks)
c. Interface evaluation is the process of assessing the usability of an interface and checking that it meets
user requirements. Briefly explain any two advantages and two disadvantages of laboratory studies
evaluation. (4 Marks)
d. Consider the two design principles “visibility” and “constraints”. For each of the two, explain the
principle and describe an example of it being used in a good design. (4 Marks)
QUESTION FOUR – 20 MARKS
a. You have designed and implemented a new game system and want to evaluate it before release. Choose
an appropriate evaluation method and identify the participants, techniques used, representative tasks to
be examined and an outline plan for carrying out the evaluation. (10 Marks)
b. Distinguish the term computer supported cooperative work (CSCW) and groupware. (4 Marks)
c. Groupware technologies are typically categorized along two primary dimensions. Describe the major
classification employed in the study of groupware. (6 Marks)
QUESTION FIVE – 20 MARKS
a. Discuss four cognitive aspects and their implications in the design of interactive systems for human use.
(6 Marks)
b. Describe the importance of interface metaphors in HCI design. (4 Marks)
c. Explain the benefits and the problems associated with user interface metaphors. (4 Marks)
d. Explain four important contributions of user interface software and tools. (6 Marks)

Bct2306:Computer Security Question Paper

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