"Fingerprint recognition, which is the oldest biometric technology used in the government sector, accounted for the largest market share in 2015, with a 47.29% share. It was followed by facial recognition with 11.21%, iris recognition with 9.69%, and voice recognition with 7.35%. These three technologies will witness a high growth during the forecast period mainly due to their user-friendliness," said Abhay Singh, one of Technavio's lead industry analysts for automatic identification systems.