ADVANTAGES / DISADVANTAGES OF BIOMETRIC SYSTEMS Here are some of the advantages and disadvantages of fully developed biometric systems that are fairly accurate: Retinal scans (electronic scan of the innermost layer of the eyeball's wall): Advantages: ;Retina generally remains stable through life, ensuring accuracy. - Disadvantages: Requires close physical contact MW scanning device; may not be generally accepted by public. Iris recognition (recording of iris using standard video technology): Advantages: Non-invasive procedure (close physical contact not …showed first 75 words of 266 total…

…showed last 75 words of 266 total…people can alter their appearance and facial hair can fool device. Voice verification or recognition (acoustic signal of voice converted into digital code): Advantages: Works well over the telephone. Disadvantages: Requires large amount of computer storage; people's voices can change; background noises can interfere. Signature recognition (computer record of pen/stylus speed, pressure, direction and other characteristics of signature): Advantages: People are used to providing a signature. Disadvantages: Poor long-term reliability; accuracy difficult to ensure.