When you have the beginning of an idea or value proposition and want to test your initial beliefs about the user, problem and solution.

We all come to our projects with preconceived notions and often these assumptions stick around without being noticed or validated. This is a quick way to put beliefs out in the open to be tested.

Hardcopy: A large paper or bristol board and writing or drawing materials. Digital: A tool to capture your concept idea (e.g. Word, Powerpoint, etc.)