WHAT ARE THE PRINCIPLES OF PROTOTYPING?

Summary from the TLDR Design newsletter

A prototype is a way to learn something before making a bigger commitment, in any form, from an email or text message to an event. Nine principles, refined by 124 people at Services Week 2026, hold that a prototype answers a question, is tested with future users, and can be archived. The tools have changed, with AI-assisted ones now in the mix, but the purpose and principles of prototyping have not.