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Lean Validation (Build-Measure-Learn)

entrepreneurship · medium · 2-4 weeks per validation cycle

What is Lean Validation (Build-Measure-Learn)?

Eric Ries's core loop from The Lean Startup. Build the smallest possible version of your idea, measure real customer behavior (not opinions), and learn whether to pivot or persevere. Eliminates months of wasted development on products nobody wants.

Is there evidence for it?

EVIDENCEstrong

How do you do Lean Validation (Build-Measure-Learn)?

  1. 1.Write down your riskiest assumption about your business idea in one sentence
  2. 2.Design the smallest experiment that would prove or disprove that assumption (landing page, concierge MVP, Wizard of Oz test)
  3. 3.Set a clear success metric before launching (e.g., 5% conversion, 10 signups in 48 hours)
  4. 4.Run the experiment for a fixed time period (1-2 weeks max)
  5. 5.Analyze results honestly — pivot the idea, persevere, or kill it based on data, not hope

How long does it take?

2-4 weeks per validation cycle.

Is it hard to start?

medium.

Source: Eric Ries — The Lean Startup (2011)
startup · validation · MVP · product-market-fit · lean
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