ISO IEC 21472 pdf – Information technology — Scenario evaluation methodology for user interaction influence in biometric system performance
1 Scope
This document addresses:
– requirements for planning, executing and reporting the influence of user interaction on biometric
system performance based on scenario test methodologies, considering three kinds of factors:a) factors related to the design, position or condition of the capture device,
b) factors depending on users and user attributes,
c)factors depending on the interaction of users with the biometric system;
specifications for the definition，establishment and measurement of conditions needed forevaluation, including those relating to equipment;
requirements for establishing a reference evaluation condition (REC) and target evaluationcondition(s) (TEC) to compare the influence of user interaction factors;
a specification of the biometric evaluation including requirements for test population,test protocols,data to record, test results; and
-procedures for carrying out the overall evaluation.This document does not:
– determine which parameters ought to be analysed for a specific biometric modality.This is currently
covered in lSO/IEC TR 19795-3;
specify requirements for performing a vulnerability analysis modifying user interaction influencefactors;
— include procedures for performing usability testing.
2Normative references
The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements of this document. For dated references,only the edition cited applies.Forundated references, the latest edition of the referenced document(including any amendments) applies.ISO/IEC 19795-1, Information technology — Biometric performance testing and reporting — Part 1:Principles and framework
ISO/IEC 19795-2,Information technology — Biometric performance testing and reporting – Part 2:Testing methodologies for technology and scenario evaluation
ISO/IEC 2382-37,Information technology – Vocabulary — Part 37: Biometrics
ISo/IEC 24779 (all parts)，Information technology – Cross-jurisdictional and societal aspects ofimplementation of biometric technologies — Pictograms, icons and symbols for use with biometric systems
3Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/IEC 19795-1, ISO/IEC 2382-37 and the following apply.
IS0 and lEC maintain terminology databases for use in standardization at the following addresses:- ISo online browsing platform: available at https:/ /www.iso .org/obp
—IEC Electropedia: available at https://www.electropedia .org/
3.1
reference evaluation conditionREC
test condition reflecting established device factors, user factors or user interaction factors
Note 1 to entry: Results generated under these test conditions are compared against results generated undercorresponding target evaluation conditions (3.2).
3.2
target evaluation conditionTEC
test condition reflecting new or alternative device factors, user factors or user interaction factors Note1 to entry:Results generated under these test conditions are compared against results generated undercorresponding reference evaluation conditions (3.1).
3.3
user interaction influence in performance
measurement of how the performance of a biometric system can differ from a reference evaluation,based on subjects using the system in operational or scenario conditions
3.4
usability testing
testing relating to the extent to which a product can be used by specified users to achieve specifiedgoals with effectiveness,efficiency and satisfaction in a specified context of use
Note 1 to entry: See ISO/1EC 9241-11.
4 Conformance
To conform to this document, a user interaction influence performance evaluation shall implement therequirements contained herein, including one reference evaluation condition (REC) and at least onetarget evaluation condition (TEC).
5 0verview
5.1General
Testing the influence of user interaction in the performance of a biometric system entails executionof one scenario evaluation under reference evaluation conditions (REC) and at least one evaluationunder target evaluation conditions (TEC).These evaluations are identical except for changes to the userinteraction influence factors being studied.