Textbook: Chapters 5-6 Flashcards Preview

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Flashcards in Textbook: Chapters 5-6 Deck (10)
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1

What are design principles?

derived from experience, abstract, high level guides for design which because of their generality are difficult to apply

2

What are design rules?

low level highly specific instructions that the designer can follow with a minimum of interpretation

3

What are the four psychological principles?

- users see what they expect to see
- users have difficulty focusing on more than one activity at a time
- it is easier to perceive a structured layout
- it is easier to recognize something than the recall it

4

What is the principle of consistency?

users find it difficult to handle the unexpected, therefore it is important to be consistent throughout the UI

5

What is the principle of exploiting prior knowledge?

users perceive the screen using their prior knowledge this provides the opportunity to draw on their experience

6

What is the principle of perceptual organization?

If you group things together that go together it is easier for the user to pay attention to the appropriate group

7

What is the principle of importance?

If something is important for the user, it should be placed in a prominent position

8

What are some modern metrics of usability?

-effective
-efficient
-engaging
-error tolerant
-easy to learn

9

What is a constraint?

Factors that may influence choices in design.

10

What is a trade-off?

resolving a conflict by sacrificing one item (eg feature) in order to achieve another