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INF1520 Assignment 3 (COMPLETE ANSWERS) 2024 - DUE 15 July 2024
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INF3720 Assignment 2 (COMPLETE ANSWERS) 2024 (602765)- DUE 2 August 2024 ; 100% TRUSTED workings, explanations and solutions
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QUESTIONS AND ANSWERS
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INF1520 Assignment 3
(COMPLETE ANSWERS)
2024 - DUE 15 July 2024 ;
100% TRUSTED workings,
explanations and
soluTIONS
, INF1520 Assignment 3 (COMPLETE ANSWERS) 2024 - DUE 15 July
2024 ; 100% TRUSTED workings, explanations and solutions
1 [13] 1.1 Explain why the keys on a computer keyboard are arranged in the
order of QWERTY. (4) 1.2 There are, potentially, many mistakes that
designers can make when designing interfaces. Specify what are the most
problematic mistakes designers make. (3) 1.3 Name and explain three
common design mistakes users make when designing interfaces? (6)
Explain why the keys on a computer keyboard are arranged in the order of QWERTY. (4)
The QWERTY keyboard layout was designed in the 1860s by Christopher Sholes for mechanical
typewriters. Its layout aimed to prevent the jamming of mechanical keys by placing commonly
used letter pairs further apart to slow down typing speed. This arrangement became standardized
and persisted through to today, despite some inefficiencies for modern computer use.
There are, potentially, many mistakes that designers can make when designing interfaces.
Specify what are the most problematic mistakes designers make. (3) Some of the most
problematic mistakes designers make include:
Poor usability: Interfaces that are difficult to navigate or understand.
Inconsistent design: Inconsistent use of colors, fonts, or layouts can confuse users.
Overcrowded interfaces: Too much information or functionality can overwhelm users
and reduce usability.
Name and explain three common design mistakes users make when designing interfaces?
(6) Users can make mistakes when designing interfaces such as:
Overdesigning: Adding too many features or elements that clutter the interface.
Ignoring user feedback: Failing to iterate based on user testing and feedback.
Not considering accessibility: Designing interfaces that are not accessible to users with
disabilities.
Question 2 [5] What are the five principles that affect learnability?
Consistency:
Explanation: Users learn and remember patterns. Consistent interfaces reduce the
learning curve by ensuring similar operations and elements behave in predictable ways.
This includes consistent use of icons, terminology, colors, and layouts.
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