AuditEvent.agent Assurance Level

The assuranceLevel element carries various types of Assurance level. May be an Identity Assurance (IAL), an Authentication Assurance Level (AAL), a Federation Assurance Level (FAL), or other.

In SAML this is defined to be carried in the `saml:AuthnContextClassRef`, but may be carried elsewhere based on the use-case and profiling of SAML.

The Vocabulary is not defined here. Some sources of vocabulary:

• HL7 v3 Security Trust Assurance ValueSet. These include ISO-7498-2, NIST 800-63-1, and NIST-800-63-2.
• idmanagement.gov published on login.gov

- this is defined to be carried in the saml:AuthnContextClassRef

• OASIS Authentication Context for SAML
• An example of a customized and purpose defined small set of codes can be found in the HL7 SMART Health Cards defines a valueset