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From Offline to Inline Barcode and 2D Code Verification

September 15, 2025



As the GS1 Vision 2027 approaches, businesses must prepare for the transition to 2D barcodes, becoming the global standard at retail POS. One critical step is ensuring barcode quality through proper verification.

Why Verification Matters

Verification plays a vital role in ensuring that barcodes meet global standards, supporting both business operations and regulatory requirements. Key benefits include:
  • Regulatory Compliance – Especially crucial in industries such as healthcare, food, and pharmaceuticals.
  • Operational Efficiency – Minimises errors, rework, and downtime in production.
  • Traceability & Data Integrity – Enhances supply chain transparency, supporting recalls and audits.
  • Future-Proofing – Prepares businesses for the Vision 2027 shift to 2D barcodes

Verification Approaches

There are two main approaches to barcode and 2D code verification:

Inline Verification 

  • Conducted in real time within production lines.
  • Ideal for continuous monitoring and immediate corrective action.
  • Sensitive to environmental conditions (e.g., lighting, vibrations).

Offline Verification

  • Performed in controlled environments using certified equipment.
  • Ensures ISO/IEC-compliant grading with detailed reporting.
  • Provides higher accuracy but is not real-time.

Best Practice: Hybrid Strategy

For most businesses, a combined approach offers the greatest value:
  1. Use inline systems for speed, real-time monitoring, and fast corrections.
  2. Complement with offline audits for compliance, detailed reporting, and calibration.
This hybrid model balances speed, accuracy, and compliance—ensuring robust barcode quality management across the supply chain.

Looking Ahead

The countdown to GS1 Vision 2027 has begun. By adopting a proactive verification strategy now, businesses can:
  • Safeguard compliance,
  • Enhance consumer trust,
  • Improve supply chain efficiency, and
  • Unlock new opportunities with GS1 Digital Link and 2D barcodes.
To help companies stay ahead, GS1 Singapore works with solution partners such as Zincode, whose verification machines enable both offline and inline barcode quality checks. Together, we provide businesses with end-to-end support—from education and standards guidance to reliable verification tools—ensuring readiness for Vision 2027 and beyond.
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