Ask a bid manager about the tender they lost on technical scoring and the answer is usually specific and small. ISO 15848-1 class B when the company holds class C. API 6D 25th edition when the certificate is to the 24th. EN 10204 3.2 certificates where standard practice is 3.1. PED module H where the notified-body certificate is B+D.
None of these is a headline requirement. All of them are on page 287.
Why they get missed
Because they are references, not descriptions. "Fire-safe to API 607" looks like a Comply — the company does fire-safe valves. Whether the certificate is to the edition the buyer cited is a second question nobody asks until the buyer's clarification round, or the scoring feedback.
Because they live in the documents nobody owns in week one. Certificates belong to QA; the proposal engineer works from datasheets. The matrix gets built from what the proposal engineer has.
Because the deadline. By the time the register is typed, there is no time to check editions.
Extracting the quiet requirements
A requirement register that captures standard references with edition, certification levels, inspection and witness requirements, and notified-body modules — as distinct, classified items rather than words inside a clause — makes them visible on day one. Matched against a library that holds certificates with their editions and validity, each becomes a Comply with a certificate number, or a Needs engineer with the exact gap: "class C held, class B required".
That is the deviation you now know you have, on day one, with a week to decide what to do about it: offer the upgrade with a cost impact, declare the deviation with a justification, or ask the buyer whether class C is acceptable for this service.
The deviation table as a strategy document
Once the quiet requirements are visible, the deviation table stops being a confession written on day six and becomes a plan written on day two. Which deviations to declare, which to resolve with engineering, which to turn into clarification questions — that is bid strategy, and it needs the week.