What is an end-to-end verification system?

In an end-to-end system, the pharmaceutical company assigns each package of a medicinal product with a unique identifier during the production process. The data for the unique identifier is uploaded to the central database of the pharmaceutical industry and stored there. For the verification of authenticity, the data matrix code can for example be scanned before the product is dispensed to the patient.

[GMP Compliance Adviser, Chapter 21.H]