Fingerprint management application task link behavior

Updated: August 23, 2010

This topic describes fingerprint management application (FMA) task link behavior

This information applies to the following operating systems:

  • Windows Server 2008 R2
  • Windows 7

If the FMA task links are shown, their behavior depends on the following factors:

  • Number of biometric unit compatibility groups available in the system pool
  • Number of FMAs registered
  • Number of available devices that work with the FMA
  • Presence of a global FMA

A biometric unit compatibility group is a set of sensors that each use instances of the same sensor adapter, matching engine, and storage adapter. If a user enrolls for one sensor in the group, then that user is enrolled for all sensors in the group.

A sensor can have an FMA registered for it specifically and there can also be a global FMA registered for all sensors. The FMA registered for a specific sensor is used only when there is no global FMA registered. If a global FMA is registered, then the global FMA is always run regardless of how many device-specific FMAs are registered.

It is possible to configure the system improperly, and get into a state where there is no global FMA registered and no device-specific FMA registered. You should avoid this situation by always registering a device-specific FMA.

Related topics

Designing Windows Biometric Framework Fingerprint Management Applications

 

 

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