Key Performance Metrics: FMR, FNMR, FTE

There are almost as many performance metrics as there are biometrics. Unfortunately there is no single metric that indicates how well a system will perform. Analysis of multiple metrics is necessary to determine the strengths and weaknesses of each technology and vendor under consideration for a given application. It should also be noted that the processes unique to various applications have a great effect on performance metrics. Testing which generates system performance metrics is most valuable when it emulates real-world application environments. 

Key performance metrics include the following:

Failure to Enroll (FTE) Rate - The probability that a given user will be unable to enroll in a biometric system due to insufficiently distinctive biometric sample(s). Users incapable of providing biometric data, such as amputees, are normally not counted in a system's FTE rate.

 

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