The evidence taxonomy
F — Verified fact
Supported by a current source, approved record, observed process, reproducible test, or corroborated evidence.
I — Inference
An interpretation or bounded estimate that states its rationale, confidence, and validation path.
U — Unresolved unknown
Evidence required for a decision but unavailable, contradictory, stale, or not yet verified.
D — Retained decision
A risk tolerance, investment threshold, policy choice, approval, or authority that remains with an accountable human or client body.
Publication standard
- Answer one specific operating question.
- Use authoritative sources or clearly labeled field evidence.
- Show the practical framework, decision artifact, or evaluation method.
- State assumptions, limitations, no-go conditions, and where the advice does not apply.
- Display a last-reviewed date and evidence classification.
- Never invent a case study, quotation, customer result, certification, partnership, or benchmark.
Claims register
Material public claims should have an owner, source, sample or scope, measurement period, approved wording, client permission where applicable, limitation, and review or expiration date. Marketing copy must not outrun the evidence register.
Use of machine assistance
Machine assistance may support research organization, drafting, code, analysis, and quality review. A responsible human remains accountable for source verification, claim boundaries, confidentiality, publication approval, and correction.
Corrections
Report a suspected error through the contact route and identify the page, statement, supporting evidence, and requested correction. Material corrections are made at the canonical source, with affected summaries and machine-readable exports updated through the normal content lifecycle.
