ISO/IEC 19795-4:2008 prescribes methods for technology and scenario evaluations of multi-supplier biometric systems that use biometric data conforming to biometric data interchange format standards.

It specifies requirements needed to assess

performance available from samples formatted according to a standard interchange format (SIF),
performance available when samples formatted according to a SIF are exchanged,
performance available from samples formatted according to a SIF, relative to proprietary data formats,
SIF interoperability by quantifying cross-product performance relative to single-product performance,
performance available from multi-sample and multimodal data formatted according to one or more SIFs, and
performance interoperability of biometric capture devices.

In addition, ISO/IEC 19795-4:2008

includes procedures for establishing an interoperable set of implementations,
defines procedures for testing interoperability with previously established sets of implementations, and
gives testing procedures for the measurement of interoperable performance.

It does not

establish a conformance test for biometric data interchange formats, or
provide test procedures for online data collection.