The History of Usability Definitions

DIN 66 234

part 8

(1988)

EC directive

90/270/EEC

(1990)

ISO 9241

part 10

(1996)

suitability for the task

self-descriptiveness

conformity with user

expectations

controllability

error robustness

suitability (activity adapted)

feeback about system states

appropriate format and pace

of information presentation

information and instruction of

ease of use applicable to

hearing and participation of

suitability for the task

self-descriptiveness

conformitity with user

expectations

suitability for learning

suitability for

individualization

controllability

error tolerance

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