Flashcards
Usability
Cards in this deck (12)
- 1What does "usability" refer to?Usability is a quality attribute that assesses how easy user interfaces are to use.
Usability is defined by 5 quality components:
Learnability: How easy is it for users to accomplish basic tasks the first time they encounter the design?
Efficiency: Once users have learned the design, how quickly can they perform tasks?
Memorability: When users return to the design after a period of not using it, how easily can they reestablish proficiency?
Errors: How many errors do users make, how severe are these errors, and how easily can they recover from the errors?
Satisfaction: How pleasant is it to use the design? - 2What are the 5 quality components?Learnability
Efficiency
Memorability
Errors
Satisfaction - 3EffiencyOnce users have learned the design, how quickly can they perform tasks?
- 4ErrorsHow many errors do users make, how severe are these errors, and how easily can they recover from the errors?
- 5SatisfactionHow pleasant is it to use the design?
- 6Millers lawThe number of objects an average human can hold in short-term memory is 7 ± 2.
- 7What are dark patterns?Dark Patterns are tricks used in websites and apps that make you do things that you didn't mean to, like buying or signing up for something.
- 8What are Disguised adverts?Adverts that are disguised as other kinds of content or navigation, in order to get you to click on them
- 9Give examples of dark patternsDisguised adverts
Friends spam
Hidden costs
Forced continuity - 10Forced continuityWhen your free trial with a service comes to an end and your credit card silently starts getting charged without any warning.
- 11Friends spamThe product asks for your email or social media permissions under the pretence it will be used for a desirable outcome (e.g. finding friends), but then spams all your contacts in a message that claims to be from you.
- 12Hidden costsYou get to the last step of the checkout process, only to discover some unexpected charges have appeared, e.g. delivery charges, tax, etc.
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- Webdev Flashcards on Usability, created by Emma Tysk on 18/06/2019.
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- Emma Tysk
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