The Lean Startup Methodology is an approach to developing businesses and products that emphasizes rapid iteration and customer feedback. It encourages entrepreneurs to create a minimum viable product (MVP) to test their ideas quickly in the market, allowing them to learn what works and what doesn’t without significant investment. This methodology is based on the principles of Lean Manufacturing and aims to reduce waste and increase efficiency. By using techniques like validated learning and pivoting, startups can adapt their strategies based on real customer insights, ultimately leading to more successful and sustainable business models.