TL;DR: A simple lunch at Kura Revolving Sushi reveals how good design quietly prevents mistakes without blaming customers or staff. It’s a reminder that the best mistake-proofing doesn’t aim for perfection–it makes the right action easy and the wrong one hard. Mistake-proofing — or poka-yoke — is about designing processes so errors are less likely to happen. It’s rarely all-or-nothing. Instead, there’s a spectrum: from weak safeguards (signs) to strong ones (physical barriers or automation). … Continue reading What Kura Sushi Teaches About Mistake-Proofing (Poka-Yoke)