Human Computer Interactions Question Paper
Human Computer Interactions
Course:Bachelor Of Science In Information Technology
Institution: Kca University question papers
Exam Year:2011
UNIVERSITY EXAMINATIONS: 2010/2011
THIRD YEAR EXAMINATION FOR THE DEGREE OF BACHELOR OF
SCIENCE IN INFORMATION TECHNOLOGY
BIT 2308: HUMAN COMPUTER INTERACTIONS
DATE: APRIL 2011 TIME: 2 HOURS
INSTRUCTIONS: Answer question ONE and any other TWO questions
QUESTION ONE
a) Explain the paradigm that “menus favour knowledge in the world over knowledge in the head”.
[2 Marks]
b) Explain the process of “Wizard of OZ” [ 2 Marks]
c) Briefly explain and illustrate using a diagram, the evaluation execution cycle proposed by
Donald Norman [6 Marks]
d) The focal point of Gestalt theory is the idea of "grouping," or how we tend to interpret a visual field or
problem in a certain way. Explain briefly the four main factors that determine grouping . [4 Marks]
e) Differentiate the terms as used in HCI: [4 Marks]
i. “gulf of execution” and “gulf of evaluation”.
ii. Horizontal prototyping and Vertical prototyping
f) Describe the steps in the Usability Engineering Lifecycle [4 Marks]
g) List Shneiderman’s Golden Rules of design [4 Marks]
h) KCA University accounts department is designing a database entry screen. The screen will
display a form consisting of a large number of text boxes. The information to be entered will be
in several categories, including personal details, account details and transaction information.
Discuss ways in which the Gestalt Laws of Perceptual Organization could be applied to
enhance the usability of this screen. [4 Marks]
QUESTION TWO
a) Differentiate between:
2
i. Low-fidelity and High-fidelity prototypes [ 4 Marks ]
ii. “affordance” and “visibility” as used in usability principle [ 4 Marks]
b) Evaluation is concerned with gathering data about the usability of a design or product by a
specified group of users for a particular activity within a specified environment or work context.
There are a wide range of methods which can be used for evaluation.
i. List four important things to consider regardless of the type of evaluation being
done. [4 Marks]
ii. State any two typical reasons why evaluations are done. [2 Marks ]
c) Discuss three major principles of direct manipulation [ 6 Marks]
QUESTION THREE
a) Briefly explain the meaning of the following terms:
i. Task analysis [2 Marks]
ii. metaphor [2 Marks]
iii. computer supported cooperative work [2 Marks]
b) State and explain any three non-computer method of developing prototypes [6 Marks]
c) State and explain any four Metaphor creation principles [4Marks]
d) Briefly discuss any four reasons why design is difficult when building human computer
interaction systems. [4 Marks]
QUESTION FOUR
a) Using an example describe the stages Donald Norman’s model of Interaction [8 Marks]
b) List and discuss any two main groups of techniques used in knowledge representation for
adaptive help system. [ 4 Marks]
c) Define ergonomics [2 Marks]
d) Briefly discuss any four principles for the design of a Dialogue structure [4 Marks]
QUESTION FIVE
a) Discuss Group Ware concepts [ 4 Marks ]
b) List and briefly explain any three Principles of Flexibility that support usability. [ 6 Marks ]
c) Brief discuss any two techniques for doing task Analysis. [ 4 Marks ]
d) List any four HCI goals [ 4 Marks]
e) Explain, using an examples, the principles of cognitive walk through [ 2 Marks ]
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