Proximity enables employees to clock in and out of attendance without even having to make contact with the integrated reader. This type of media is especially suited to harsh environments where debris would prevent barcode cards being read.
Proximity cards are standard "credit card" size and can be printed in full colour using a PVC card printer, allowing for the card to be used as a security ID card. The same card could also be used for Access Control or a company vending card (I-Class).
An RFID tag is attached to each location the field-worker visits. Several tags could be placed inside or outside one building if needed. Tags can be the self-adhesive label type (for internal use) or more robust external ones. When the worker visits the location they simply touch the tag with their mobile phone to read it. This identifies where they are and what type of location they are at, allowing the phone to present them with a set of context-sensitive options.