In what follows there is a brief description of the principal biometric technologies, whose respective proponents - producers, research laboratories, think tanks - mostly tend to claim superiority over the others. A frequently used definition of "biometric" is that of a "unique, measurable characteristic or trait of a human being for automatically recognizing or verifying identity" (
All biometric technologies are made up of the same basic processes:
1. A sample of a biometric is first collected, then transformed into digital information and stored as the "biometric template" of the person in question.
2. At every new identification, a second sample is collected and its identity with the first one is examined.
3. If the two samples are identical, the persons identity is confirmed, i.e. the system knows who the person is.
This means that access to the facility or resource can be granted or denied. It also means that information about the persons behaviour and movements has been collected. The system now knows who passed a certain identification point at which time, at what distance from the previous time, and it can combine these data with others, thereby appropriating an individual's data body.
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American corporation that was the world's largest automotive manufacturer and perhaps the largest industrial corporation throughout most of the 20th century. It was founded in 1908 to consolidate several motorcar companies and today operates manufacturing and assembly plants and distribution centers throughout the United States and Canada and many other countries. Its major products include automobiles and trucks, a wide range of automotive components, engines, and defense and aerospace material. In 1996 it sold Electronic Data Systems, and in 1997 it sold the defense units of its Hughes Electronics subsidiary to the Raytheon Company, thus leaving the computer-services and defense-aerospace fields in order to concentrate on its automotive businesses. The company's headquarters are in Detroit, Michigan.