Coming out of UX studies at Hyper Island, my instinct was to apply the Double Diamond to the entire product. After research, I mapped the portal out as a set of flows and started running each one through the process.
It quickly became clear that didn't fit. The Double Diamond is built for unknowns, for problems that need discovery, definition, and ideation. But most flows in the portal (sign-up, dashboards, navigation, reporting, admin) already have well-established answers. They just needed to be designed well.
The discount creation flow was different. It was the core business mechanic, the biggest source of operator confusion, and where research surfaced the strongest insight. It was also what investors needed to see, because it was what made the company make sense.
So I scoped the deep design work to that flow. The rest of this case study focuses on it.