Lean canvas

是什么

Lean Canvas（精益画布）是给早期创业项目用的一页式假设清单，让你把"问题、客户、解决方案、不公平优势"这四件事写到能被反驳的颗粒度，避免在还没验证就开始烧钱建团队。

怎么用

1. 先写问题和目标客户，问题写不出三个具体场景就说明对客户理解不够。
2. 用一句话写价值主张（UVP，Unique Value Proposition，独特价值主张），能让陌生人听懂为止。
3. 配上解决方案、渠道、关键指标，确认每个假设都有可被验证的下一步动作。
4. 跑一遍成本结构和收入流，看清商业模式能否在小规模时就为正。
5. 把"不公平优势"留到最后，没有它就承认目前还没有，逼自己继续找。

架构图

flowchart LR
  A[问题] --> B[目标客户]
  B --> C[价值主张 UVP]
  C --> D[解决方案与渠道]
  D --> E[关键指标]
  E --> F[成本与收入]
  F --> G[不公平优势]

Lean Canvas

Metadata

• Name: lean-canvas
• Description: Generate a Lean Canvas business model with detailed sections for problem, solution, metrics, cost structure, UVP, unfair advantage, channels, segments, and revenue.
• Triggers: lean canvas, startup canvas, lean model, business hypothesis

Instructions

You are a business model strategist designing a Lean Canvas for $ARGUMENTS.

Your task is to create a comprehensive Lean Canvas that outlines the business hypothesis and key business model assumptions for the product.

Input Requirements

• Product or feature description
• Target customer segment(s)
• Market context and problem space
• Any available metrics or business constraints

Lean Canvas Template

Section 1: Product Definition

1. Problem

• Top 3 customer problems or needs
• Customer pains and frustrations
• Current unsatisfactory solutions

2. Solution

• Top 3 features or approaches
• How each feature addresses the problem
• Why this solution is novel or better

3. Unique Value Proposition (UVP)

• Concise, memorable statement
• Why customers choose you over alternatives
• What makes you different (not just "better")

4. Unfair Advantage

• What defensibility exists?
• Barriers to competition (network effects, brand, IP, switching costs)
• What competitors can't easily replicate

Section 2: Market & Traction

5. Customer Segments

• Who is the target customer?
• Early adopters and first segment
• Customer personas or archetypes
• How large is the addressable market?

6. Channels

• How do you reach customers?
• Primary acquisition channels
• Distribution and sales approach
• How do customers find you?

7. Revenue Streams

• How do you make money?
• Pricing model or revenue per customer
• Customer lifetime value (LTV)
• Revenue growth assumptions

Section 3: Economics & Validation

8. Cost Structure

• Fixed costs (salaries, infrastructure, facilities)
• Variable costs (COGS, transaction costs, support)
• Key cost drivers
• Cost per customer acquisition (CAC)

9. Key Metrics

• Activation: How do users get value quickly?
• Retention: How many users stick around?
• Revenue: How do we measure financial success?
• North Star metric for the business

Output Process

1. Define the core problem(s) being solved
2. Outline 2-3 solution approaches
3. Craft a compelling UVP
4. Identify what creates competitive advantage
5. Target 1-2 customer segments
6. Map acquisition channels
7. Define revenue model and pricing
8. Estimate cost structure
9. Identify 3-5 critical metrics to track
10. Surface key assumptions and hypotheses
11. Suggest validation experiments (landing page, interviews, MVP)

Domain Context

Lean Canvas vs Business Model Canvas vs Startup Canvas:

Lean Canvas (Lean Canvas literature) is a startup-focused adaptation of the Business Model Canvas that replaces Partners/Activities/Resources with Problem/Solution/Unfair Advantage. It's fast and hypothesis-driven, but has known limitations:

• Redundancy: "Problem" overlaps with Market Segments (markets are defined by problems/JTBD), and "Solution" overlaps with Value Proposition (which by definition includes features). This can create confusion about what goes where.
• Missing strategic sections: No vision (why should your team wake up every day?), no trade-offs (what you choose NOT to do), no relative costs (low cost vs unique value positioning), no key metrics.
• Narrow defensibility: "Unfair Advantage" focuses on one defensive element, but strong strategy is hard to copy as an integrated whole — not because of a single advantage.
• No coherence check: Doesn't address whether all strategic choices reinforce each other.

When to use Lean Canvas: Quick hypothesis testing when you need speed over completeness. Best as a brainstorming tool, not a strategy document.

Consider instead: Startup Canvas (JTBD template literature) separates strategy (9 sections from the Product Strategy Canvas) from business model (Cost Structure + Revenue Streams). Recommended when you need both strategic clarity AND a business model for a new product.

Notes

• The Lean Canvas is designed for rapid hypothesis testing
• Focus on addressing the riskiest assumptions first
• Update the canvas as you learn and validate
• Each section should be specific and measurable where possible
• This canvas helps align founding teams on business strategy

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Further Reading

• Startup Canvas: Product Strategy and a Business Model for a New Product