Start with the decision
NIST’s August 2026 TEVV-Athlon draft asks evaluators to connect an assessment to organizational goals and the system’s operating environment. TEVV stands for testing, evaluation, verification and validation. The announcement calls this an initial public draft, not a final standard. [1]
- Purpose: what must work here?
- Evidence: what would show it?
- Decision: what do results support?
Give the question a measurable form
The draft separates the property of interest, the activities that produce evidence, and the tools that collect or analyze it. A privacy question, for example, may need deliberately designed tests for leaked personal information. Choosing a metric is part of designing the assessment, not a substitute for deciding what matters. [2]
Bring the result back to its purpose
Its final stage asks evaluators to work back from collected results to the original assessment goals. That links a reported result to a decision about the system. The framework supplies a method for organizing evidence; it does not certify an individual product. [2]
Go a little deeper
Optional reading · about 1 more minute
One assistant, two different jobs
Hypothetical example: A shop uses an assistant to draft replies, with a person checking every message. Later it lets the same assistant send replies automatically. You might now test inappropriate promises and missed escalation requests as well as writing quality. This is an illustrative evaluation design, not a measured product result.
Read a score as an answer to a question
Our interpretation: Ask which decision the test was meant to support, who used the system, and what counted as a failure. A result can be useful within that scope without answering every question about the product.
Original sources
Attributed synthesis, not original reporting. Examples labeled hypothetical or illustrative are explanatory. Reviewing a source does not independently validate its findings.
- NIST: TEVV-Athlon announcement ↗
August 7, 2026 announcement and draft status checked September 24, 2026. This is a proposed evaluation framework.
- NIST AI 200-2: initial public draft ↗
August 2026 initial public draft; sections 2.1–2.4 and example context read September 24, 2026; not a final standard or product certification.
