Advances in biometrics, biometric and watches biometric systems each person is unique from the others and there are different qualities, which prove it. Thanks to science, we know that every human being has behavioral, and physiological qualities that make each person unique. These qualities include the shape of the face, fingerprints, eye patterns, voice, signature, how to walk and how to enter. Biometrics is the science that is responsible for the analysis and measurement of all these qualities. This science has been present for many years.

Analyzed by biometrics qualities are called biometric indicators and must comply with certain parameters, so they can be used in a biometric analysis. These parameters are only four: quantifiability, permanence, uniqueness and universality. The quantifiability means that a biometric indicator should be able to be measured quantitatively. Taking the example of digital fingerprints, these can be quantified by studying and detailing its components as you crests and valleys. The stay means that a biometric indicator should always be present in a person and does not disappear with the passage of time. It can in this case be somewhat flexible, because some biometric maracas may disappear because of accidents or illnesses. For example, a person who loses their hands may not have fingerprints.

The uniqueness is refriere a biometric indicator should have a provision unique to each person. Fingerprints, eye patterns, and other biometric qualities, are unique in every human being and are not even identical twins. Universality means that a biometric indicator must be present in all human beings. Just as with permanence, there are some exceptions. When you fence go to biometric systems, should bear in mind the parameters set out above, to make the best choice. We think that we are heading to a construction company and we need to implement an access control, biometric, so only our workers from entering a work. It is no secret that the hands of the construction workers will always be in contact with dirt and other substances, so use a fingerprint reader would not be the wisest thing. In this way we would opt for biometric systems such as biometric facial features watches. It is so before adopting a system of this kind should make an analysis of what you have to make the choice that is more fit to existing needs. There are biometric systems that scan fingerprints. In this way, some biometric devices that come with a fingerprint reader, to only authenticate registered personnel.