Section 66 of 103
65. Marking, Label, Barcode, QR Code and Machine-Readable Identifier
Stable section ID: S05-CON-015-SECTION-66 · 14 content blocks
A Marking is information permanently or temporarily applied directly to an Engineering Entity or its associated carrier.
A Label is an attached, printed, engraved, embedded, or digital information carrier used to display or encode identity and engineering information.
A Barcode is a machine-readable graphical encoding using controlled patterns. A QR Code is a two-dimensional barcode capable of encoding an identifier, limited data, or a resolvable reference.
A Machine-Readable Identifier is any structured representation that enables authorized equipment or software to obtain an entity’s identity without relying solely on manual interpretation.
The physical carrier shall remain distinct from the underlying Digital Identity. A QR Code may point to a Digital Passport but is not itself the Passport.
Marking systems should account for:
durability and environmental exposure;
expected service life;
visibility and scan access;
replacement and tamper detection;
human-readable fallback;
error correction and redundancy;
cybersecurity and counterfeit resistance.
A damaged or unreadable label shall trigger identity-recovery procedures and shall not authorize creation of an unverified replacement identity.