Module 01 · Worksheet
Second-order effect sheet
Follow one design decision past the launch date.
Pick one change you are working on right now. Fill this in before the next review. Fifteen minutes is enough.
Your nameProduct / projectDate
1. The decision
What changes on screen
One sentence, no jargon.
Who sees it first
New users, paying customers, internal team?
2. The behaviour it causes
What people will do more of
Be specific about the action.
What people will do less of
Something always gets displaced.
What breaks when they do it wrong
The unhappy path is where cost hides.
3. The result you can measure
Money effect
More revenue, lower cost to serve, or fewer people leaving.
Number you would watch
One number only.
What it looks like in 30 days if this worked
Write the sentence you want to say in the review.