Currently the technology has exceeded the limits of the imagination, be able to identify a person by just putting your finger in a device, or by photography, has allowed the development of several applications that ensure that the person is who they say they. Technologies that identify individuals are grouped in the concept of biometrics but that is biometrics? Below is a definition which I think explanatory: biometrics includes all those technological solutions of identification of individuals, based on unique, immutable and untransferable individual characteristics. Fingerprints, retinas, iris, facial patterns, veins of the hand or the geometry of the Palm of the hand, represent examples of physical characteristics (static), while examples of the behavioral characteristics include signature, the step and the (dynamic) typing. The voice is considered to be a mixture of physical characteristics and behavior, but all the biometric features share physical and behavioral aspects. The great advantage of biometrics is that it allows a secure authentication, unlike the use of passwords or cards, since they can be stolen or used by people who do not correspond to the individual who seeks to identify.

We could say that human beings have very easily accessible, integrated ID cards: his fingerprints for example, which are virtually unique designs. The inability to transfer adds comfort to the user, who will not carry or memorize nothing to identify themselves. Each of these techniques should apply, depending on the environment, to ensure its effectiveness. On this occasion we will discuss that technique applied to the rural sector to perform a control of presence in flower and agroexportadoras companies. The rural sector many entrepreneurs worry about control of assistance from its staff, especially in sectors where the production of inputs such as flowers, broccoli, bell pepper, etc., depends on the timeliness of personnel. Implement biometrics in this sector will depend on factors such as: cost of the solution, ease in the handling of the device, effectiveness measurement and speed of attention.

For this reason, the use of the hand geometry, fingerprint and facial recognition lately have been the most commonly used methods. The rural sector is perhaps the biggest problem environment to implement biometric recognition using digital fingerprint. Because the tasks that each person meets in their daily work: floricultural activity, agroexportadoras, agriculture in general. This problem is resolved using standards and methodologies which help to the proper functioning of the system as such. Hand geometry requires a key to perform the verification, this may cause a problem because at the moment people register their attendance takes to enter your key and locate the hand. The face recognition does not need key only the person puts his face in front of the camera and registers its assistance. They exist location of the face and brightness problems, however are resolved using appropriate mechanisms. As for the cost, it is higher than the footprint and the Palm of the hand, but in record speed, especially for people with difficult fingers, is the best choice. The use of other mechanisms such as: the reading of the iris, retina, similar to the face do not need keys, however these equipment installation is expensive in relation to the footprint, hand and face. In conclusion both the fingerprint, hand or face are effective measurements that meet expectations ensure the identification of the individual, however these depend on economic factors, speed in attention, and ease of management for optimum results in the hourly control. Francisco Fuentes Gerente General biometric S.A.