Terminology
The purpose of this document is to define terminology used through this documentation.
End-User
The person who actually uses a particular product that uses Ory Kratos.
Identity
the "who" of a software system. It can be a customer, employee, user, contractor, or even a programmatic identity such as an IoT device, application, or some other type of "robot."
Common aliases are "user", "user account", "account", "subject".
Self-Service
Interfaces and flows allowing customers to produce services independent of involvement of direct service employee.
You perform self-service registration when signing up for a new Google account, because no one else is involved in the process.