Usability testing
Usability testing evaluates a product or service by testing it with representative users. Typically, users are asked to complete common tasks while moderators observe them and take notes.
Usability testing allows teams to understand how satisfied users are and spot usability problems. The collected qualitative data (about users' motivations, behaviors, beliefs, feelings, or opinions) and quantitative data (usually numerical results such as how much, how many, how often, etc.) help teams fix issues before coding.[1]