This document outlines how to use a validation board to test startup ideas using the Lean Startup process. It describes a 3-step process: 1) Define your customer problem and hypothesis; 2) Plan your minimum viable product experiment to test assumptions; 3) Analyze results and pivot if not validated. The key is to get customer feedback quickly through minimal experiments rather than fully building products before validating problems and solutions. If done correctly, it can help startups stay focused on action and learning to successfully start, sustain, and scale their businesses.