Related characteristics
understandability
learnability
operability
explicitness
customisability
attractivity
clarity
helpfulness
user-friendliness
User-friendliness
Description
Attributes of software that bear on the users' satisfaction.
Indicators
1. rated user-friendliness
Ratio of users that prefer the new software product over the previous, after a certain period of practical use.
Source: QUINT
Scale: ratio
Validity: **
Protocol:
1. Select a representative group of users;
2. Carry out an opinion poll;
3. Calculate the ratio.
2. expert judgement on user-friendliness
User-friendliness, as judged by a team of experts on topics as: screen composition, vocabulary, application of colour and sound.
Source: QUINT
Scale: ratio
Validity: **
Protocol:
1. Designate one or more experts to judge the user-friendliness;
2. Let the experts express user-friendliness as high, average or low.
3. user-friendliness compared to sample
User-friendliness compared to a sample product, as judged by a team of experts. The experts decide to what extent user-friendliness of the software product matches the sample product.
Source: QUINT
Scale: ordinal
Validity: **
Protocol:
1. Designate one or more experts to compare user-friendliness with a sample product;
2. Let the experts express user-friendliness as comparable, average comparable or hardly/not comparable.