Biometric Importance and Security in Modern Society

Biometric technologies are becoming the foundation of an extensive array of highly secure identification and personal verification systems. As the level of security infringes, the requirement for highly secure identification and personal verification technologies are becoming apparent. When adopting a biometric technology for identification, the most important question is whether to choose a unimodal (which use a single biometric trait of the individual for identification and verification) or multimodal(which use or are capable of using a combination of two or more biometric modalities to identify an individual) biometric system. This paper discusses both these systems, the limitations of unimodal biometric systems and how these limitations are overcome by the use of multimodal biometric systems.