Related characteristics
understandability
learnability
operability
explicitness
customisability
attractivity
clarity
helpfulness
user-friendliness
Clarity
Description
Attributes of software that bear on the clarity of making the user aware of the functions it can perform.
Indicators
1. function recognition ratio
Ratio of functions that an average unpractised user distinguishes in the software product without help, within a period of time.
Source: QUINT
Scale: ratio
Validity: **
Protocol:
1. Select a representative group of users;
2. Ask them which functions they discovered in the software product during a certain period of use;
3. Calculate the average ratio of functions found to the total number of functions.
or, Protocol:
1. Select a representative group of users;
2. Present them with a list of available functions in the software product;
3. Ask the users to mark the functions that they found during a certain period of use;
4. Calculate the average ratio of functions found to the total number of functions.
2. function use ratio
Ratio of functions of the software product that an average user actually employs after a certain period of time.
Source: QUINT
Scale: ratio Validity: *
Protocol:
1. Select a representative group of users;
2. Make an inventory of the functions which are actually used;
3. Calculate the average ratio of used functions to the total number of functions.
or, Protocol:
1. Select a representative group of users;
2. Present them with a list of available functions in the software product;
3. Ask the users to mark the functions which they actually used;
4. Calculate the average ratio of used functions to the total number of functions.