A56 · Reference edition 2026.11
Revision and traceability — Definition and boundaries
A useful revision explains what changed, why the record changed and which figures or component tables are affected.
Scope and purpose
Start by separating the named concept from adjacent concepts. Use the observation below to identify the question the record is intended to answer. Read the caution before applying the example. A definition is useful only when another reader can tell what falls outside it.
Working notes
This reference collection concerns light, offline dimensional-inspection layouts. It brings locating concepts, component descriptions and revision records together without substituting for an engineered fixture design. The drawings are original explanatory diagrams. Reference IDs identify documents, not commercially tested products. Read the scope and limitations alongside each example, and keep the actual part drawing and inspection requirements available when reviewing a proposed layout.
Practical example
Keep a superseded drawing readable and point to the current revision without overwriting its history.
| Reference record | Interpretation |
|---|---|
| A56 | Revision and traceability |
| Scope and purpose | A useful revision explains what changed, why the record changed and which figures or component tables are affected. |
| Limits and interpretation | A newer document date does not by itself establish technical approval. |
Review checklist
Write a one-sentence scope statement; identify a neighbouring concept; record what the example does not establish.