Systems, methods, or computer program products may collect information
about the performance of individual RFID tags. In particular, signal
strength and/or signal sensitivity of individual RFID tags may be
measured and the resulting performance information may be stored in a
data repository. In the data repository, the performance information for
an individual tag may be associated with an identifier that is uniquely
associated with the tag. In one exemplary embodiment, the performance
information may be used by an on-line system configured to automatically
determine the performance margin with which RFID tags are being read in
an RFID system, or to automatically tune the RFID system to achieve a
desired performance margin.