Rating vs. Assessment

Glossary of the Settlement Integrity Institute · v1.0 · Group III — Distinctions

Definition

A rating is an opinion, expressed on an ordinal scale, about the relative likelihood of a future outcome — most commonly the likelihood that an obligor will pay an obligation when due. An assessment is a determination, against a published methodology, that a subject does or does not satisfy specified criteria as of a stated date. A rating ranks; an assessment finds.

Notes

The distinction is established in the regulatory architecture of each. Credit ratings issued by Nationally Recognized Statistical Rating Organizations are governed by Section 15E of the Securities Exchange Act and the rules thereunder, which treat the rating as an opinion and the methodology as the institutional product; the SEC inspects NRSROs for consistent application of methodology but does not adjudicate the rating itself.1 Conformity assessment under ISO/IEC 17065 produces a binary determination — the product, process, or service either conforms to the specification or it does not — and the certification body's standing depends on the integrity of that determination.2 Audit opinions under PCAOB standards similarly produce a finding (unqualified, qualified, adverse, disclaimer) against published auditing standards, not a forecast.3

The Operational Readiness Assessment is an assessment, not a rating. It does not predict; it determines. It does not rank infrastructures against one another; it finds whether a particular infrastructure satisfies the criteria of Operational Suitability as of the assessment date. The output is a finding, supported by evidence, against a published methodology — recertified on a defined cycle as conditions change. The distinction matters because the questions a rating answers and the questions an assessment answers are not the same questions, and the institutional disciplines required to answer each well are different. A rating asks how likely; an assessment asks whether. For tokenized settlement infrastructure, where the question regulators, counterparties, and the public need answered is whether the infrastructure is suitable for use in the discharge of obligations, the assessment is the form the answer must take.

See also

Operational Readiness Assessment · Operational Suitability · Methodology Authority · Recertification Cycle

References

  1. Securities and Exchange Commission, Nationally Recognized Statistical Rating Organizations, 17 C.F.R. § 240.17g-1 et seq.; Securities Exchange Act of 1934 § 15E. ecfr.gov
  2. International Organization for Standardization & International Electrotechnical Commission, ISO/IEC 17065:2012 — Conformity Assessment: Requirements for Bodies Certifying Products, Processes and Services. iso.org
  3. Public Company Accounting Oversight Board, AS 3101: The Auditor's Report on an Audit of Financial Statements When the Auditor Expresses an Unqualified Opinion. pcaobus.org