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What the Assumption Map is, how to fill it in and what happens next.
What this guide covers
What this guide covers
What it is
What has to be true
You list what must be true for your idea to work and rate each one.
- Schools will pay per repair
- One technician covers ten schools
- Head teachers decide alone
- Teachers report broken laptops
- Parts are easy to get
Why it helps
Test the riskiest guess first
Seeing every assumption at once shows which one to test before you build.
- Not a test there are no right answers
- Doubt is fine 5 means no evidence yet
- Up to three tests small enough to run soon
Filling it in
Twenty minutes, one idea
Write the idea, list what must be true, then plan tests.
List and rate each one
Rate how important it is and how little you know.
See the top-right corner
Important and untested ones sit there; drag a dot to adjust.
Plan a test for the riskiest
Decide what counts as success before you start.
List and rate each one
Rate how important it is and how little you know.
See the top-right corner
Important and untested ones sit there; drag a dot to adjust.
- Schools will pay per repair
- One technician covers ten schools
- Head teachers decide alone
- Teachers report broken laptops
- Parts are easy to get
Plan a test for the riskiest
Decide what counts as success before you start.
- Schools will pay per repair
- One technician covers ten schools
- Head teachers decide alone
- Teachers report broken laptops
- Parts are easy to get
On Mentornity
Find it, fill it in, send it
Your mentor’s tool waits on your home page until you send it.
Find it on your home page
Tools to fill in shows what was sent, and by whom.
Stop whenever you like
Your answers are saved as you go.
Check, then send
Before you send, you see any step left empty.
Find it on your home page
Tools to fill in shows what was sent, and by whom.
Assumption MapFrom Rachel Bennett To do See all Stop whenever you like
Your answers are saved as you go.
Check, then send
Before you send, you see any step left empty.
Assumption MapFrom Rachel Bennett To do See all What happens next
You pick the tests together
Your mentor reads the map, comments and agrees next steps with you.
- Only you two program admins do not see the answers
- Comments on any part of it
- Next steps who does what, by when
- Still editable change answers after sending
Map it before you build
Twenty minutes is enough, so bring your riskiest assumption to the meeting.