Preparing the published article.
Editorial standards: how we source and label information
What our three evidence tiers mean.
Tier A
Primary documents: standards, regulations, official statistics and filings.
Tier B
Company statements and press material, labelled as company claims.
Tier C
Trade-press summaries used only as leads, never as the sole basis for a factual claim.
Method note: no vendor endorsement. Where public sources are cited, verify against the publisher's original text.