Another widely-used technology is the use of RFID (Radio-Frequency Identification) or NFC (Near-Field Communication) cards. Employees or students are provided with a unique card that they tap or swipe against a reader to record their attendance. This method is fast and easy to use, making it popular in many office and school environments. The cards can be programmed to contain additio... https://mobiworkforce.com.sg/electronic-attendance-recording-system/