A card starts an event
The reader captures an identifier. Meaning comes from software: who owns the card, which action is allowed and what must be recorded.
Tracking and services
The same principle can support equipment issue, membership services or operation records. Application logic defines the workflow.
Check compatibility
Tag frequency, standard and connection method must match the selected reader. Test real cards and mounting conditions before deployment.
Plan for failures
Decide what happens after a duplicate read, an unknown card or a lost database connection. These choices affect the correctness of the process.
