INSTRUMENT 11 · QUALITY EVIDENCE GRAPH

Which high-severity failure mode has no prevention control?

Explore how requirements, characteristics, controls, measurements, findings and field learning connect. Solid means confirmed; dashed means inferred; broken means a gap; stale means revision mismatch. Think of it like a home's wiring diagram: each node is an outlet or switch, and a "broken" edge is a wire that's supposed to connect two points but doesn't — nothing will trip until someone needs that connection.

Example: the failure mode "uneven tower flange contact" (F-08) should connect to a prevention control — a machining inspection plan, say. If that link shows "broken" below, it means quality has identified a known way for this to go wrong, but nothing is currently in place to catch it before it happens. That is the gap worth finding before an audit does.

EVIDENCE SOURCE

Seeded wind dataset (10 nodes)

A CSV never leaves this browser tab — parsing happens client-side only, with no upload to any server.

R-104 · Requirementconfirmed

critical characteristic: flange flatness

C-220 · Characteristicconfirmed

flange flatness ≤ 0.20 mm

F-08 · Failure modebroken

uneven tower flange contact

K-31 · Controlconfirmed

machining inspection plan

M-07 · Measurement systemstale

portable CMM study

I-88 · Inspection recordconfirmed

tower 17 dimensional report

N-12 · Non-conformitybroken

bolt preload variation

L-04 · Lesson learnedinferred

transport fixture distortion

S-19 · Supplierconfirmed

structural fabrication package

F-31 · Field issuestale

installation fit-up delay

CANNED QUERY

High-severity gaps

2 broken relationships need a prevention or evidence review.

COVERAGE: seeded wind dataset · 10 representative nodes shown · inferred edges remain labelled as suggestions.

ACCESSIBLE TABLE VIEW

IDTypeEdge
R-104Requirementconfirmed
C-220Characteristicconfirmed
F-08Failure modebroken
K-31Controlconfirmed
M-07Measurement systemstale
I-88Inspection recordconfirmed
N-12Non-conformitybroken
L-04Lesson learnedinferred
S-19Supplierconfirmed
F-31Field issuestale

WHY THIS INSTRUMENT EXISTS

A critical characteristic on a drawing should be traceable through risk analysis, control plan, work instruction and inspection evidence — and in most organisations it is not, because those artefacts are maintained separately and drift apart silently between revisions.

Connecting evidence by revision, part, project, supplier and phase turns a set of disconnected documents into a graph a reviewer can actually walk end to end, which is where the highest-value findings usually sit — between documents, not inside one of them.

§3.3 The quality information chain§6.1 Classify the evidence before choosing anything else§6.2 Metadata that keeps evidence trustworthy§10.2 Root-cause and corrective-action support§2.3 Debugging a wrong answer: retrieval or generation?§6.5 When sources disagree: an authority hierarchy