Coming out of a design sprint, I was tasked with turning a user journey from a PowerPoint format into a prototype. We used the prototype to articulate product's future state and test with users.
The bulk of the work was done during a design sprint. The team understood what the product is, what we are trying to solve, and how users will experience the product. Requirements were captured in a deck. I just had to have a couple of meetings with two stakeholders to bring the concept to life through design.