startup-validation-test-designer

Startup Validation Test Designer

When to use

Use after a startup problem has been captured and grilled, especially when the next question is “how do I test this before building?”

This skill designs the smallest credible validation test. It should produce evidence from real people, not compliments about an idea.

Core rule

Test the riskiest assumption first. Prefer interviews, targeted outreach, paid audits, manual services, landing pages, fake doors, demo videos, and concierge delivery before building full software.

Inputs to request if missing

Problem:
Target user:
Likely buyer:
Current workaround:
Riskiest assumption:
What the user can build or deliver manually:
Existing network or channels:
Founder advantage:
Recent enabling change:
Distribution route:

Workflow

1. Identify the riskiest assumption.
2. Choose the fastest credible test type.
3. Define the exact behaviour that would count as evidence.
4. Write non-leading interview questions if interviews are part of the test.
5. Define the target list and outreach angle.
6. Tie the test to why the problem is urgent or newly solvable now.
7. Set success, failure, and kill criteria before the test runs.
8. Keep the test timeboxed. Default to 48 hours to 2 weeks.
9. End with a clear evidence gate for whether v1 scoping is justified after the test.

Test types

Choose one or combine a small number:

• Customer interview: learn workflow, cost, workaround, urgency, budget, and objections.
• Direct outreach: test whether a narrow ICP responds to the pain statement.
• Landing page: test whether people understand and take a specific action.
• Fake door: measure clicks or requests for a specific capability.
• Demo video: test whether the promised workflow is compelling.
• Paid audit: sell a manual diagnostic or review before SaaS exists.
• Manual service: deliver the outcome by hand for a few users.
• Concierge/Wizard-of-Oz prototype: give a product-like experience with manual fulfilment.
• Prototype: build only when behaviour cannot be tested another way.