Product-Market-Fit
Evaluates whether a product addresses a viable market and generates sustainable demand.
PURPOSE
Many startups and product teams invest enormous resources in development without being certain that a sufficiently large market exists. Product-Market Fit helps determine whether a product truly addresses a need that customers are willing to pay for. It is the decisive milestone that determines whether scaling makes sense or would waste resources.
HOW TO USE
Teams validate Product-Market Fit through systematic customer feedback, usage metrics, and retention data. A key indicator is the answer to the question: How disappointed would your users be if the product no longer existed? Iterative adjustments to product and target audience are made until the metrics indicate a strong match.
WHAT IT IS
Product-Market Fit is a concept popularized by Marc Andreessen that describes whether a product serves a real, viable market. It is often considered the most important milestone in the Lean Startup methodology, situated between the search and scaling phases. The framework includes qualitative and quantitative measurement methods, including the Sean Ellis Survey and cohort retention analyses.
EXAMPLE
Example: Your SaaS startup has 200 users after six months, but the churn rate is 40% per month — you are unsure whether you have achieved Product-Market Fit. You apply the Product-Market Fit Framework, analyze the Sean Ellis survey, and discover that only 15% of users would be very disappointed without your product — well below the 40% threshold.