During an ideal UX design process, we conduct UX research and as a result, we end up with a lot of data. To organize and synthesize this data, we can for example create and sketch Empathy Maps, Personas and User Journey Maps. To better understand our users, we also draw Storyboards.
We can use our visual notes as memory triggers, for example during a Contextual Inquiry or User Interview, we can use visual elements in our notes. Next to these, we sketch user interfaces before we go digital and create Wireframes and Prototypes on our computer. Userflows can also be presented as sequences of user interface sketches.