The idea of utilising biometrics first came about for a few fundamental reasons, including increasing security, preventing fraud, identifying necessity and so on. In our day-to-day lives, we encounter a variety of preventative measures that range from simplest to complex, such as the use of CCTV cameras by law enforcement; the use of RFID cards to control access to public transportation (buses, metros and trains); printed ID cards required for banking, medical and postal services; metal keys required for access to residential and commercial properties; and so on.
All of this to arrive at the ideal point of providing the appropriate service to the appropriate individual at the appropriate time. The high frequency of identification, authorisation or verification in day-to-day life shifted the perspective of biometrics applications from "luxury solution" to "must have feature."
