
Steve Blank
A practical guide to startup success through customer-focused discovery, validation, creation, and company building.
Steve Blank's Customer Development model laid the groundwork for the Lean Startup movement.
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Section 1
7 Sections
Imagine embarking on a journey with a map that shows only the destination but no landmarks, no guideposts, no knowledge of the terrain. This is the perilous path many startups take when they follow the traditional Product Development model. The model, born in the structured world of manufacturing and established markets, assumes a linear progression from product concept to launch, with customers waiting eagerly at the finish line.
Consider the story of a company that raised over $800 million with a grand vision to revolutionize grocery shopping. They built vast automated warehouses and fleets of delivery trucks, confident that customers would flood their service. Yet, barely two years after going public, the company was bankrupt. What went wrong? They had focused on building the product and infrastructure without first validating whether enough customers wanted or needed their service.
The Product Development model’s stages — from concept and seed, through product development, alpha/beta testing, to product launch — all emphasize execution and hitting deadlines. Sales and marketing are pressured to ramp up in sync with engineering, aiming for a big bang launch. But
This model also fosters unrealistic expectations. Startups believe that once the product ships, sales will follow naturally. But often, the early customers are not representative of the mainstream market. The sales team struggles with a product that does not fit customer needs, marketing campaigns fall flat, and cash burns through the company’s coffers. The resulting 'death spiral' sees executives replaced, morale plummet, and investors lose faith.
Yet, this path is not inevitable. The failures of the past illuminate the need for a new way — one that puts customers at the center from day one. As we move forward, we will explore a model that embraces uncertainty, values learning, and guides startups through the fog to find their true market.
Let us now turn to this new path, a model designed to help startups find their customers before scaling their products.
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