Verifying 2D symbols: A Brief History

For those of us familiar with verifying 1D barcodes like UPC and Code 128, migrating into 2D symbols like QR Code or Data Matrix seems very complicated. Why is that? With 1D barcodes it was a fairly straightforward process, starting with the Uniform Code Council’s Universal Product Code Symbol Specification and UPC Verification Manuals (1970’s).…

Anatomy of the Perfect Barcode

My mother always admonished my siblings and me that people would listen and learn more from a positive message than from a negative one. I hope she will forgive me for taking several years before writing this article about the perfect barcode. Horrible barcodes are so much more—interesting. But a truly perfect barcode is also…