Assumption Learning Card
What is it?
Assumptions are the things that need to be true for an idea to work. They should be as specific as possible - instead of 'will it make money', it might be 'can we drive traffic to our website and get people to click 'buy'
When to use it?
To record learnings from the tests/experiments you do.
When you want to take an evidence-led approach to decide whether to launch a pilot.