Working with personas
User personas have a name, a face and personal details, but they aren't real people. They're fictional representations of your test users that help your team to understand who they're building for.
Building user personas allows you to do product management grounded in user needs, without getting bogged down in the detail of specific customers and all their anomalies. A great user persona is realistic, easy to visualize, and tied into your day-to-day decisions and processes.