Which bar code must include human-readable interpretation (HRI) markings?

The correct answer is that a 2D Bar Code must include human-readable interpretation (HRI) markings. HRI markings are essential in providing a way for humans to interpret the data encoded in bar codes, particularly when the bar code is scanned. This is important for various applications in logistics, inventory, and sales, where immediate human verification of the scanned data is necessary.

2D bar codes, such as QR codes or Data Matrix codes, encode a significant amount of information in a two-dimensional format, allowing for more data to be stored compared to traditional 1D bar codes. The inclusion of HRI helps clarify what the encoded data represents, making it easier for users to confirm what they are scanning. This aspect is particularly vital in industries where accuracy in data interpretation can significantly impact operations.

While other types of bar codes may also have standards for human-readable information, in the context of 2D bar codes, the prominence of HRI is integral for usability, ensuring that operators can quickly verify and understand the encoded information without needing to rely solely on scanning devices.