The Identity and Access Management (IAM) Glossary is a reference document that aggregates and summarizes IAM-related terms and definitions. Bringing together the terms and definitions in this document is meant to provide a consistent vernacular for IAM. The goal is to provide a common language to communicate, understand, debate, conclude, and present the results of the IAM working group's work. The intended audience is everyone from the Board to security staff inside an organization to customers and third-party suppliers, including cloud service providers. This glossary is intended as a living document that allows for interpretation and refinement.