North Star Metric
The single metric that best captures the core value a product delivers, used to align a whole team's decisions around one number.
A North Star metric is the one number a company agrees best reflects the value it delivers to customers — nights booked, messages sent, weekly active teams. It is chosen so that moving it means the business and its users win together, and it becomes the shared reference for prioritization.
The discipline is in the choice. A good North Star is a leading indicator of value and revenue, not a vanity number; it resists gaming and connects to real user behavior. Around it, teams define input metrics — activation, retention — that they can actually influence week to week.
In practice
A startup tracks signups as its headline number — and ships a quarter of features that lift signups while revenue stays flat. Switching the North Star to “weekly active teams” changes decisions immediately: a viral-but-shallow referral idea loses priority to a collaboration feature that makes teams sticky, and each squad takes an input metric (activation, invite rate, report frequency) it can actually move. The number on the dashboard finally means the business is growing, not just the top of the funnel.
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