User-friendliness
User-friendly is a term often used to describe software and other technologies. Its definition is subjective, depending on the user. Useful alternative terms are usability and accessibility, both from the field of human-computer interaction.
Certain parameters can be used to judge it include
- adequacy
- Only necessary input should be required.
- learnability
- Manuals and instructions should be clear.
- robustness
- Impact of error should be inversely proportional to probability of error.
See also : newbie.