50+ Lean Validation Experiments

A new business idea always rests on assumptions, and the expensive ones are the assumptions nobody named. This report gives you the method for finding them and more than fifty experiments to test them cheaply, before the damage is done.

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75 pages · PDF and online
What you walk away with
  • A way to surface the assumptions your idea actually depends on
  • More than fifty experiments, with the question each one answers
  • A cycle that ends in a decision: learn, run again, or kill it
Drawn from venture work with
TelenetBeiersdorfGoreDecathlon
Why this report exists

Every new idea rests on assumptions. The expensive ones are unnamed.

Without evidence gathered before the build, a business concept carries risk nobody has priced. Mapping the assumptions first, then testing the ones that would sink the idea, is what makes it cheap to be wrong.

The point is not to be right early. It is to be wrong cheaply, on purpose.

What changes

A method, and more than fifty ways to run it.

Map what the idea depends on, design a test that answers it, run it, and then decide: learn and continue, or kill it and start again.

The method

Know what to test, and in what order

  • 1Assumption mappingSurface what the idea quietly depends on
  • 2Experiment designWhat type of assumption, and what evidence you hold
  • 3Run experimentsThe cheapest test that answers the question
  • 4Learn, cycle or killA decision, not a report
The experiments

Pick the cheapest test that answers your question

  • 5The Mom TestInterviews that survive politeness
  • 6Landing pageInterest, before anything is built
  • 7Smoke testDemand for something that does not exist yet
  • 8Fake buttonWhat people click when nothing happens
  • 9ConciergeDeliver it by hand before you automate
  • 10Wizard of OzA working product with people behind the curtain
  • 11Letter of intentA signature instead of an opinion
  • 12Pre-orderThe only validation that carries money
Inside the report

Built to be run, not just read.

50+Validation experiments, listed and explained
3Stages in the methodology
1Assumption mapping canvas to run with your team
2Questions that pick the right experiment
Pages from the report
01Jelmer Peerbolte Leyash Pillay
022. How much evidence do you already have for a speci fi c assumption?
03A Day In The Life
04User Test Recording
05The Gut Check
06Organic Growth Rate

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The lean validation method, an assumption mapping canvas, and more than fifty experiments to run. Free, and in your inbox in a minute.

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