Способы собирать обратную связь: их много, и вы можете использовать не только опросы.
Цитируем:
«User interviews are a very important part of making a software application, web site, or technology device usable. But they are most important early on, before your product or web site has been designed. You can use user interviews after the fact to get feedback on an existing design, but usability testing is a better method».