Whether it’s a church door, an entrance into a high-tech Internet company or admission to a local police station, enterprise security leaders often view the application of access control technology one door at a time.

A prox card is a card is a card unless you do more things with it. And that’s what is happening as radio frequency identification (RFID) in its many increasingly powerful forms becomes a diverse security and business tool to apply to people, vehicles, assets and even processes. Active or passive, more or less intelligent, contact or contactless, with ranges from inches to feet, RFID is suddenly the super solution.