Business Model Design

Goal

Core Principles

• Read from and write to the

  opc-doc/

  directory under the current working directory by default
• Explain what Lean Canvas and lightweight Business Model Canvas are first in teaching mode
• Only process one module at a time, do not fill the entire canvas in one go
• Ask only one question at a time by default; if several questions are very simple and closely related, you can combine them into 2 to 3 questions
• Provide 3 optional solutions for each key module by default, plus

  4. I have my own solution

• Write formal results only after user confirmation
• Do not give direct recommendation conclusions, only conduct solution analysis
• This phase only conducts structural analysis of "how the business works", and does not enter the execution layer

Phase Boundaries

What to do in this step

• Disassemble core modules of the business model (Problem / Solution / Channels / Revenue, etc.)
• Identify high-risk assumptions
• Confirm the current business model direction

What not to do in this step (the following belong to subsequent phases, do not enter in advance)

• ❌ No MVP design or product prototype (belongs to opc-mvp-designer)
• ❌ No customer acquisition process or content plan (belongs to conversion closed-loop phase)
• ❌ No specific operation SOP or delivery process (belongs to asset precipitation phase)

"This belongs to the scope of the subsequent MVP or execution phase. We will first confirm the assumptions of the business model clearly before proceeding."

Mandatory Completion Items for This Step

1. Problem
2. Customer Segments
3. Unique Value Proposition
4. Solution
5. Channels
6. Revenue Streams
7. Cost Structure
8. Key Metrics
9. Unfair Advantage

Priority Confirmation Order

1. Problem
2. Customer Segments
3. Unique Value Proposition
4. Solution
5. Channels
6. Revenue Streams
7. Cost Structure
8. Key Metrics
9. Unfair Advantage

Completion Criteria

• Core modules of Lean Canvas are completed
• High-risk assumptions are extracted
• User has confirmed the current business model direction

What to Explain in This Step

• Lean Canvas is a simplified table of entrepreneurial assumptions
• Business Model Canvas is used to see "how value is created, delivered, and obtained"
• The role of this step is to prevent blindly developing products before the business model is clearly thought out

Input

• opc-doc/outputs/02-niche-positioning/*

• opc-doc/outputs/03-value-proposition/*

Execution Steps

1. First explain the role of this step
2. Ask only one question at a time by default; if several questions are very simple and closely related, you can combine them into 2 to 3 questions, and advance by module, for example:
   • What is the core problem of this type of user?
   • What do you plan to sell first?
   • Through what channels will users find you?
   • How do you prefer to charge?
3. After each round of answers, give brief feedback explaining which part of the current business model is taking shape
4. Provide 3 candidate solutions for key modules, for example:
   • 3 versions of pricing methods
   • 3 versions of channel paths
   • 3 versions of revenue structure
5. Add

   4. I have my own solution

   by default
6. Let users choose, modify, mix, or propose their own version
7. After the key modules are confirmed, organize them into Lean Canvas and BMC Lite
8. Extract high-risk assumptions
9. Save to disk after user confirmation

Output

1. Explanation of this step
2. Summary of current business model modules
3. 3 key candidate solutions +

   4. I have my own solution

4. Applicable scenarios, advantages and costs of each solution
5. Ask user to confirm or modify

Disk Write Checkpoint (must be completed at this phase, cannot be skipped)

• opc-doc/outputs/04-business-model/lean-canvas.md

  (Fill results of Lean Canvas core modules)

• opc-doc/outputs/04-business-model/business-model-canvas-lite.md

  (BMC Lite lightweight verification)

• opc-doc/outputs/04-business-model/pricing-notes.md

  (Pricing method assumptions)

• opc-doc/outputs/04-business-model/risky-assumptions.md

  (List of high-risk assumptions, for priority verification in MVP phase)

• opc-doc/state/current-stage.json

  (Write:

  {"stage": "04-business-model", "status": "completed", "next_stage": "05-opportunity-score", "summary": "One-sentence business model core"}

  )

• opc-doc/state/decisions.json

  (Append core business model decisions)

• opc-doc/state/assumptions.json

  (Write high-risk assumption list)

"✅ Business model conclusions have been saved. The next conversation can continue from opportunity scoring."

opc-opportunity-score

opc-mvp-designer

When to Call Other Skills

opc-opportunity-score

opc-mvp-designer

Exception Handling

• If the user obviously does not understand canvas-related terms, you must replace them with more popular expressions
• If the revenue method conflicts with the value proposition, point out the conflict and provide alternatives instead of finalizing the plan directly