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Here’s what you need to look for in a North Star Metric: As close as possible to the core value experience ... Aggregate number, not a rate or ratio—We’re looking for a number that will sum up the value across the entire market and potentially grow up-and-to-right over time... Simple and memorable—No North Star Metric is perfect. Some messages sent via WhatsApp may be spam, some items purchased on eBay may not be fully satisfactory to the buyer. That’s fine as long as the number is still generally indicative of total value.

Evidence-Guided

Itamar Gilad

Measuring Engagement The ultimate metric for engagement is daily use. How many of your customers use your product on a daily basis?

Lean Analytics

Alistair Croll, Benjamin Yoskovitz

The concept of product discovery emerged because smart companies saw the waste in working this way. They wanted to ensure that they had sufficient evidence to believe that the solution they asked their engineers to build would successfully solve the customer or business problem it was intended to solve.

Transformed

Marty Cagan

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