Describes the concepts of conformance testing for biometric data interchange formats and a general conformance testing framework. Specifies common (modality-neutral) elements of the testing methodology, such as test methods and procedures, implementation conformance claim and test results reporting. Provides the assertion language definition and other testing and reporting requirements, and outlines other conformance testing methodology that are generally applicable and not modality-specific. Describes different types and levels of conformance testing and their applicability.