Usability in Information Visualization Recap Quiz
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Questions and Answers

What is the primary focus of usability?

  • Learnability
  • Efficiency (correct)
  • Safety
  • User interface design

What does efficiency in usability refer to?

  • Speed of learning
  • Amount of information provided to the user
  • Time taken to use the system once learned (correct)
  • Error prevention

What is the purpose of UI Hall of Shame/Fame according to the text?

  • To provide information for user decision-making (correct)
  • To predict user efficiency
  • To improve user memory
  • To increase pointing efficiency

What is the capacity of working memory according to the text?

<p>7 ± 2 'chunks' (D)</p> Signup and view all the answers

How does maintenance rehearsal affect working memory?

<p>It prevents decay but costs attention (B)</p> Signup and view all the answers

What is the definition of 'chunking' as per the text?

<p>A unit of memory or perception (C)</p> Signup and view all the answers

What is the key factor that allows chess masters to remember board configurations?

<p>Their past experience of playing and studying games (D)</p> Signup and view all the answers

What does Fitt’s Law specify in relation to hand movement and target size?

<p>As the target size goes up, movement time goes down (A)</p> Signup and view all the answers

What is the implication of Fitt’s Law with regards to targets at the screen edge?

<p>Targets at the screen edge are easy to hit (D)</p> Signup and view all the answers

How is the index of difficulty calculated in Fitt’s Law?

<p>Logarithmically in relation to target size and distance (C)</p> Signup and view all the answers

What is the key message when transforming Fitt’s Law into a designer’s language?

<p>Design your user interface element to be large and close to where the user starts the interaction (D)</p> Signup and view all the answers

What makes steering tasks much harder than pointing according to the text?

<p>The linear nature of index of difficulty (A)</p> Signup and view all the answers

What is suggested by transforming the law into designer’s language regarding tunnel user interface elements?

<p>Design them to be wider and shorter (B)</p> Signup and view all the answers

What does a high index of difficulty indicate in Fitt’s Law?

<p>A small target size and a long distance from the starting point (A)</p> Signup and view all the answers

What is the primary reason for beginners' limited ability to remember chess board configurations according to the text?

<p>Their lack of experience in playing chess (A)</p> Signup and view all the answers

What is implied by Fitt’s Law with respect to the effect of target distance on movement time?

<p>As the target distance increases, movement time increases (A)</p> Signup and view all the answers

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