The term Level of Assurance (LOA), as currently used is all about assurances of identity. In particular, within the context of OMB-04-04 (PDF) and NIST SP-800-63 (PDF), it is defined as:
- the degree of confidence in the vetting process used to establish the identity of the individual to whom the credential was issued (i.e. the identity proofing component) and
- the degree of confidence that the individual who uses the credential is the individual to whom the credential was issued (i.e. the "technical strength" of the credential itself)
I hope that we can come up with and agree on another term to convey our intent here, which is to denote the Measure of Confidence or a Level of Confidence you can have in an Attribute. The components that make up that level/measure TBD.
:- by Anil John