Glossary Updates12 new terms added to the glossaries · October 2, 2026, 22:44 CEST
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Glossary · Manufacturing systems

Serialization

Also known as: Unit-level serialization, Track and trace

German: Serialisierung

In manufacturing and packaging, serialization is the assignment of a unique serial number to each individual product or package, usually encoded in a data carrier such as a 2D barcode, so each unit can be identified, verified and traced.

  • Manufacturing systems

In one sentence

Serialization gives each product or package a unique serial number, often in a 2D code, so each unit can be identified and traced.

Example

Each medicine carton receives a GS1 DataMatrix with product code, serial number, batch and expiry date, uploaded to the verification system.

How it applies

  • Engineering: Serialization systems generate or receive serial numbers, print and verify codes on the line and report them to enterprise and regulatory systems. Line, site and enterprise levels share the work.
  • Regulation: The EU Falsified Medicines Directive and Delegated Regulation (EU) 2016/161 require a unique identifier on most prescription medicines; the US DSCSA requires product identifiers on prescription drug packages. Medical devices have Unique Device Identification (UDI), which includes serial numbers where applicable.
  • Digital product passport: A serialized identifier can link a unit to its passport at item level, depending on the delegated act; see Unique product identifier.
  • Documentation: Document the number format, the data flow between systems, rules for rejected or sampled units and the handling of code verification failures.

Serialization vs. lot tracking

Lot tracking identifies groups; serialization identifies individual units.

By knowledge.aitechdoc.world · Published September 26, 2026 · Last reviewed

Source: AI TechDoc Blog editorial definition, based on packaging and traceability practice (GS1 standards, EU FMD, US DSCSA)

Definitions follow the cited standards and specifications. Where a source is a copyrighted publication, such as an ISO, IEC or EN standard, the definition is a close paraphrase, not a verbatim quotation, so as not to infringe copyright. We recommend reading the original publication. The sections “How it applies” are editorial commentary by AI TechDoc Blog and are not part of any standard.

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