QR code or Data Matrix?
Both are two-dimensional symbols. The correct choice depends on the industry, available print area, trading-partner specification and data standard. GS1 DataMatrix is established in regulated and healthcare uses; QR Codes powered by GS1 are being adopted for retail and connected product information.
Do not choose a symbol only because it fits. Confirm the required application identifier structure, scanner environment and customer specification.
What controls code quality?
- Contrast: the marked and unmarked areas must be distinguishable.
- Module definition: individual cells must remain correctly shaped and separated.
- Quiet zone: clear space around the symbol must be protected.
- Product handling: vibration, speed variation and focus changes can distort the mark.
- Data accuracy: the message source and line controls must select the right product record.
- Verification: grade the finished code using an appropriate method, not a phone camera alone.
Preparing for GS1 2D codes
GS1 reports a gradual industry transition towards 2D barcodes, with significant retail adoption targeted around 2027 while existing linear barcodes continue to coexist. Manufacturers should identify required data, code size, packaging artwork, line controls and verification early.
Oxford Traceability can review the marking window, trial the substrate and discuss the connection between production data and the laser controller.
From data to verified mark
A robust project maps the data source, message template, product selection, trigger and encoder signals, marking process and verification response. See our production-line integration approach or send sample packs for testing.
Standards reference: GS1 UK guidance on QR Codes powered by GS1.