On paper, triage is severity × wait. In a real ER at 3am, it's severity × wait × who-just-got-out-of-surgery × which-tech-is-on-CRI × the-thing-the-owner-said-on-the-phone-that-only-the-front-desk-heard. The board has to encode all of it without slowing anyone down.
Rule 1 · The board re-ranks itself
No one has time to drag and drop. Severity changes? The patient moves. A vet finishes surgery? Their bay surfaces. A tech logs a CRI started? The patient drops to the back of the queue, tagged by status so we know they're in care, not waiting.
Rule 2 · The handoff card has to be readable in the time it takes to wash hands
Twenty seconds, max. We landed on: signalment, presenting complaint, current vitals delta from baseline, last drug given, next due. Everything else is one tap away. The handoff card is the document of record at shift change — if you can't read it in 20 seconds, it's the wrong document.
Rule 3 · The owner's first 90 seconds
They're scared, exhausted, and have repeated themselves three times by the time they reach you. The board shows the front-desk note verbatim under the patient — what the owner actually said, not the triage tech's paraphrase. Of everything on the board, this is the piece we'd fight hardest to keep.
Rule 4 · No-show on the board is a thing
Patient checked in, got bumped, owner left without telling anyone — it happens. The board flags 30+ minute lobby times automatically and surfaces them with a soft peach pulse, so a forgotten check-in gets caught before it walks out to the parking lot.
What it's built to do
The board is built to move the numbers that matter: throughput up, Cat-1 waits down, Sev-1 to-treatment at zero because you never wait on a Sev-1, ever, and per-visit charting time down from minutes to well under two. Those are the targets the design is held to.
I was an ER director for eight years before this. Each of these rules feels small on its own; together they're the difference between a board that fights you and one that runs the floor. That's how good operational tooling tends to land.