UNIVERSITY EXAMINATIONS: 2013/2014
ORDINARY EXAMINATION FOR THE BACHELOR OF SCIENCE
IN INFORMATION TECHNOLOGY/BUSINESS INFORMATION
TECHNOLOGY
BIT 2308 HUMAN COMPUTER INTERACTION
DATE: AUGUST, 2014 TIME: 2 HOURS
INSTRUCTIONS: Answer Question ONE and any other TWO
QUESTION ONE. (COMPULSORY)
(a) Discuss the following terms are they apply in HCI
(i) Usability (2 Marks)
(ii) Affordance (2 Marks)
(iii) Visibility (2 Marks)
(b) Describe any four HCI goals. (4 Marks)
(c) Compare the constructivist and ecological theories of perception and give examples
of how each has influenced interface design. (6 Marks)
(d) Describe, with the aid of a diagram, the Extended Human Information Processing
model. (6 Marks)
(e) Differentiate between knowledge in the world and knowledge in the head.
(2 Marks)
(f) Differentiate “recognition rather than recall” as used in HCI (2 Marks)
(g) Explain the difference between Multimodal and multimedia systems. (4 Marks)
QUESTION TWO
(a) KCA University is designing an intranet system to ensure that admission staff
always have the most up-to-date information on products and special offers, and
have immediate access to number of students admitted. Give a root definition for
this system using the CATWOE elements. (5 Marks)
(b) Describe the steps in the Usability Engineering Life cycle (5 Marks)
(c) Explain the way in which menus favour knowledge in the world over knowledge
in the head. (3 Marks)
(d) Explain any four facilities included in an interactive system that allows users to
recover from their mistakes (4 Marks)
(e) How does evaluation fit into a user-centered design lifecycle?
(3 Marks)
QUESTION THREE
(a) What is meant by user-centered design? (2 Marks)
(b) Discuss audio and visual devices that are used in input and output devices.
(3 Marks)
(c) What is the aim of evaluation? Who should use evaluation? (3 Marks)
(d) Describe two techniques for evaluation, highlighting their key points and the
differences between them (12 Marks)
QUESTION FOUR
(a) Discuss any four interaction styles that are applicable in computing giving its
advantages and disadvantages. (12 Mark)
(b) Discuss KCA University website using Cognitive Task Analysis, GOMS
(8 Marks)
QUESTION FIVE
(a) Why is web page design different to designing for printed media? (6 Marks)
(b) What are design guidelines? (2 Marks)
(c) Nielsen produced some design guidelines for web sites. What were three issues he
covered? (4 Marks)
(d) What is meant by accessibility? (2 Marks)
(e) Give three examples of how web sites can aid accessibility. (6 Marks)
