I can survey the potential end users after design stages, prototype stages as well as at the end of project to get feedback on what they like and don't like about the design and what works well or doesn't work.

These will provide insights into how I can improve the designs and can provide thoughts and perspectives that I wouldn't have got to on my own.

Interviews and surveys can be done before the design and prototype stages to find out what the client is looking for and what the end users are looking for. It is also a good idea to talk to other people on my course - who are from different design backgrounds as they can provide different viewpoints and perspectives to the ones I have.