Project Performance Domains refer to key areas or categories that are essential for measuring and evaluating the success and effectiveness of a project. These domains encompass various aspects of project management.

They provide a framework for understanding and managing different facets of a project. There isn’t a universally agreed-upon set of performance domains.

By paying attention to each domain, project performance can be monitored, measured, and improved, leading to more successful project outcomes.

To learn about Performance Domains in project management, PMI has created a
graphic wheel to help PMP certified to deliver a project and its outcome.

This document is free and you can download it on PMI website