In the relationship between identity, authentication, and authorization, what does identification provide?

In the context of identity, authentication, and authorization, identification serves to establish uniqueness among user entities. It is the first step in the process wherein a user presents themselves to the system, typically in the form of a username or user ID. This unique identifier allows the system to distinguish one user from another, ensuring that each user is recognized as a distinct entity.

This distinct identification is crucial for the subsequent processes of authentication and authorization. Without a unique identifier, it would be impossible to accurately authenticate a user (confirm that they are who they claim to be) or to authorize access to specific resources (granting permissions based on their identity).

Establishing uniqueness helps prevent identity-related issues such as impersonation or confusion between users, thus providing a foundational element in the overall identity and access management framework.