International Journal of Computer Applications
As the authors all know that the biometrics system is used everywhere for person identity verification. So the biometric system identification is based on the modality and those modalities depend on the physical as well as biological behavior of the person. The physical behavior like fingerprint, iris and face is physical behavior of the human being whereas biological behavior means according to mannerism of human being are signature or DNA testing of human being. If they are using one modality for identification of person it leads to problem as the modality fail for identification so person has to face problems.