Standard interface standard in order to exchange information between the softwareand the hardware whichusethe bio metrics certification whichidentifiesthe individual due to the fingerprint and the retina and the irisetc.. Specification is decided with BioAPI Consortium to which several dozen corporations of affiliated industry participate.HA-APIand BAPI etc. preceding, also the standards where development is advanced are integrated, have become in factde facto standard.
Low it consists of level which defines finely thing from the high level layer which defines the basic function which application needs and such as the function which is specific to the device layer.Not only API of narrow sense,
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