All NFC tags are technically updatable, but traditionally, the process is awkward and has several troublesome limitations. With simpler tags that lack cryptographic access control, leaving the tag in an updatable state also introduces the potential for malicious tampering by third parties. Additionally, updating a content requires personnel to physically visit every tag to change its contents.
The term ‘dynamic tag’ is uses to refer to two very different technologies that make the content updating much easier and more flexible - active tags and tag redirection.
Active tags refer to “tags” that are not really tags at all; instead, the tag presents a tag-like RF interface for users to interact with while having additional control logic to manipulate its contents. This can either take the form of simple chips that must be paired with a hosting device to function or full-featured readers such as the TapTrack Tappy operating in a mode called ‘card emulation.’ While this style of dynamic tag provides the utmost flexibility, the increased ‘tag’ complexity greatly increases the cost of the NFC deployment. Handily, for many usages, a tag redirection platform can provide most of the same functionality at a fraction of the cost and without introducing any additional hardware complexity.
Tag redirection works by encoding a unique URL onto each tag that links to a service in the cloud. This service then serve content or redirect requests as necessary to serve the content desired. As a result, the cheapest tags can be used while still providing a fully dynamic solution at the cost of either requiring the content to be servable through a web browser or the users to have an app installed. If it sounds like a tag redirection system might fit your requirements, contact us for a demo of the TapTrack Tag Management Platform, which provides dynamic tag management as well as live statistic tracking.