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Human Computer Interaction(Bbit 324) Question Paper

Human Computer Interaction(Bbit 324)

Course:Computer Information Systems And Business Information Technology

Institution: Kenya Methodist University question papers

Exam Year:2010

TIME : 2 HOURS
INSTRUCTIONS Answer Question ONE and any Other TWO Questions

Question 1
a) Define Usability in terms of the five quality components. (5marks)
b) Explain five advantages of direct manipulation as an interaction style. (5marks)
c) Describe the object-action model. (5marks)
d) Explain why users are different yet similar. (5marks)
e) Describe three populations of users with special needs. For each population, suggest three ways current interfaces could be improved to better serve them. (6marks)
f) Name and explain four expert review methods used for usability evaluation. (4marks)

Question 2
a) Distinguish between low fidelity and high fidelity prototypes. (3marks)
b) Poor user interfaces provide inaccurate conceptual model of a system and thus frustrate a user.
i) Describe what a conceptual model is. (3marks)
ii) As a designer, how can you help the user construct a good conceptual model? (4marks)
c) Outline one design implication for each of the following characteristics of human memory.
i) Recognition is better than recall
ii) Short term memory is small in size
iii) Pictures are remembered better than words
iv) Procedural memory is error prone (4marks)
d) Cognitive distance is between the user’s mental model and the system model. The closer the path, the easier it is for a user to use the system. Explain three techniques used to decrease the cognitive distance. (6marks)

Question 3
a) Cloud computing is today becoming a very important in the digital age. Discuss the term Cloud computing (4marks)
b) Explain the HCI methodologies that can be best implemented in cloud computing environment (6marks)
c) What security measures would you recommend for the HCI cloud computing devices (5marks) d) How will cloud computing enhance teleworking (5marks)

Question 4
a) Why do you consider good design of user interface as being important? (2marks)
i) What comprises a good design? (4marks)
ii) Explain benefits of good design (4marks)
b) Name different types of menus you are aware of (4marks)
c) To enhance interaction, messages are used - name and describe the different types of messages that can be implemented in systems application (6marks)

Human Computer Interaction(Bbit 324) Question Paper

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