What is checklist in design?
This checklist includes some of the basic ideas that you need to communicate with your client about – content, functionality and performance. (You might also consider a checklist for items that you will work on that you don't need client approval for.)
What is the most important element in UX design?
The UX process emphasises testing with real users early and often in order to ensure that the design solves the right problem. Solving the right problem is the most important task that UX designers face.