The Lean Canvas

Definition

The Lean Canvas is Ash Maurya's one-page adaptation of Alex Osterwalder's Business Model Canvas, swapping out Partners, Key Activities, and Key Resources for Problem, Existing Alternatives, Key Metrics, and Unfair Advantage. It is fast (fillable in an afternoon), concise (forces you to pick words carefully), and portable (easy to share and revise) — a deliberate replacement for the traditional business plan, which the book calls "a form of waste" when built on untested hypotheses.

In the Book

Chapter 1 introduces the canvas as the artifact for Step 1 of Running Lean's meta-process ("Document your Plan A"), and makes a pointed design choice: the Solution box occupies less than one-ninth of the page, because entrepreneurs are "most passionate about the solution box" while, per Dave McClure of 500 Startups, "customers don't care about your solution. They care about their problems." Chapter 3 walks through filling in each of the nine boxes using the CloudFire case study, where the author produces four separate canvases — one each for the Parents, Photographers, Videographers, and Consumers customer segments — that are later ranked against each other in Chapter 4 to decide where to start.

Why It Matters

Treating the business model itself as the artifact under test — rather than the software — lets a team apply ordinary product-development discipline (fast drafts, versioning, throwing out what doesn't work) to the riskiest, least-examined part of a new venture: the assumptions underneath it. It also gives a team one shared page to argue over instead of forty pages nobody rereads.