Page 54 · Module 02, Design Your Business · this screen continues that page
All 108 frameworksLean Canvas
You're pre-revenue and need to validate quickly. You don't need a full business plan, you
The prompt
Copy & paste readyLabelsReplace theseSwap the role below
Who should run this prompt
Module role profileWho should stress-test your business model? Business models fail quietly — not all at once, but one flawed assumption at a time. The roles on this page represent the perspectives that expose those assumptions before the market does. Use internal roles to build and refine your model. Use outside perspectives to find the gaps your optimism is covering.
Choose any role to drop it into the prompt above. Only the highlighted opening clause changes — the rest of the prompt stays exactly as printed.
◆◆◆◆◆ → ◆ seniority, board level down to specialist◈ outside the organisation
How to make any role sharper
- Add years of experience: "...with 15 years in enterprise SaaS" produces different depth than just the title.
- Add what they care most about: "You care most about [X]" shapes every word of the output.
- Add their communication style: "Be direct. Flag risks first. No jargon." changes the tone entirely.
Use this when
The problem it solvesneed to identify your riskiest assumptions and test them before spending months building.
How the framework works
From the printed pageAsh Maurya adapted the Business Model Canvas into the Lean Canvas specifically for startups. It replaces the left-side partnership and activity blocks with Problem, Solution, Key Metrics, and Unfair Advantage, the four things that matter most before product- market fit. The Lean Canvas is designed to be completed in one sitting and updated as you learn. Think of it as a living hypothesis, not a fixed plan.
The method, in four moves
Do these in orderComplete the Problem block first - if you can't describe the problem sharply, stop here.
Write your Unfair Advantage honestly - if you can't fill this in yet, that's important information.
Mark the two most uncertain blocks - those are your first two things to validate.
Update the Canvas after every 5 customer conversations. Validate fast before you build the wrong thing Founders fill in the Lean Canvas once at the beginning, then never update it. The canvas is a live document, it should change every time a core assumption is tested and proven wrong. A canvas that hasn't changed in three months usually means the founder isn't talking to customers enough.
Where the framework comes from
Ash Maurya, Running Lean, 2012 — adapted from Osterwalder's BMC
Pairs well with
As printed with this frameworkModule 02 — Design Your Business
Shape what you're building so it deserves to exist.
10 frameworks, printed on pages 49–68.
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