Information technology - Vocabulary - Part 37: Biometrics (ISO/IEC 2382-37:2022)

This document establishes a systematic description of the concepts in the field of biometrics pertaining to recognition of human beings and reconciles variant terms in use in pre-existing biometric standards against the preferred terms, thereby clarifying the use of terms in this field.
Excluded from the scope of this document are concepts (represented by terms) from information technology, pattern recognition, biology, mathematics, etc. Biometrics uses such fields of knowledge as a basis.
In principle, mode specific terms are outside the scope of this document.
Words in bold are defined in this document. Words that are not in bold are to be understood in their natural language sense. The authority for natural language use of terms in this document is the Concise Oxford English Dictionary (COD), Thumb Index Edition (tenth edition, revised, 2002). Words used in their natural language sense are considered out-of-scope for further definition in this document.

Informationstechnik - Begriffe - Teil 37: Biometrie (ISO/IEC 2382-37:2022)

Technologies de l'information - Vocabulaire - Partie 37: Biométrie (ISO/IEC 2382-37:2022)

Le présent document établit une description systématique des concepts du domaine de la biométrie, en rapport avec la reconnaissance des êtres humains. Il fait le rapprochement entre les variantes de termes utilisées dans des Normes internationales préexistantes sur la biométrie et les termes privilégiés, permettant ainsi de clarifier l'usage des termes dans ce domaine.
Le présent document ne couvre pas les concepts (représentés par des termes) issus des technologies de l'information, de la reconnaissance des formes, de la biologie, des mathématiques, etc. La biométrie s'appuie sur ces domaines de connaissance.
En principe, les termes spécifiques à des modes ne relèvent pas du domaine d'application du présent document.

Informacijska tehnologija - Slovar - 37. del: Biometrija (ISO/IEC 2382-37:2022)

General Information

Status
Not Published
Public Enquiry End Date
13-Jul-2023
Technical Committee
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
11-May-2023
Due Date
28-Sep-2023
Completion Date
19-Jul-2023

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SLOVENSKI STANDARD
oSIST prEN ISO/IEC 2382-37:2023
01-julij-2023
Informacijska tehnologija - Slovar - 37. del: Biometrija (ISO/IEC 2382-37:2022)
Information technology - Vocabulary - Part 37: Biometrics (ISO/IEC 2382-37:2022)
Informationstechnik - Begriffe - Teil 37: Biometrie (ISO/IEC 2382-37:2022)
Technologies de l'information - Vocabulaire - Partie 37: Biométrie (ISO/IEC 2382-
37:2022)
Ta slovenski standard je istoveten z: prEN ISO/IEC 2382-37
ICS:
01.040.35 Informacijska tehnologija. Information technology
(Slovarji) (Vocabularies)
35.240.15 Identifikacijske kartice. Čipne Identification cards. Chip
kartice. Biometrija cards. Biometrics
oSIST prEN ISO/IEC 2382-37:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO/IEC 2382-37:2023

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oSIST prEN ISO/IEC 2382-37:2023
INTERNATIONAL ISO/IEC
STANDARD 2382-37
Third edition
2022-03
Information technology —
Vocabulary —
Part 37:
Biometrics
Technologies de l'information — Vocabulaire —
Partie 37: Biométrie
Информационные технологии — Словарь —
Часть 37: Часть 37: Биометрия
Reference number
ISO/IEC 2382-37:2022(E)
© ISO/IEC 2022

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oSIST prEN ISO/IEC 2382-37:2023
ISO/IEC 2382-37:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
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oSIST prEN ISO/IEC 2382-37:2023
ISO/IEC 2382-37:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Terms related to general concepts . 1
3.2 Terms related to biometric systems . 2
3.3 Terms related to data in biometric systems . 4
3.4 Terms related to devices . 11
3.5 Terms related to functioning . 11
3.6 Terms related to interaction . 14
3.7 Terms related to personnel . 19
3.8 Terms related to application .23
3.9 Terms related to performance .23
Bibliography .30
Alphabetical Index.31
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oSIST prEN ISO/IEC 2382-37:2023
ISO/IEC 2382-37:2022(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are
members of ISO or IEC participate in the development of International Standards through technical
committees established by the respective organization to deal with particular fields of technical
activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international
organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the
work.
The procedures used to develop this document and those intended for its further maintenance
are described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria
needed for the different types of document should be noted. This document was drafted in
accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives or
www.iec.ch/members_experts/refdocs).
Attention is drawn to the possibility that some of the elements of this document may be the subject
of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent
rights. Details of any patent rights identified during the development of the document will be in the
Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents) or the IEC
list of patent declarations received (see https://patents.iec.ch).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see
www.iso.org/iso/foreword.html. In the IEC, see www.iec.ch/understanding-standards.
This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 37, Biometrics.
This third edition cancels and replaces the second edition (ISO/IEC 2382-37:2017), which has been
technically revised.
The main changes are as follows:
— modifications to some of the terms published in the 2017 edition; and
— addition of new terms related to biometric systems (starting from 37.02.08), data in biometric
systems (starting from 37.03.42), devices (37.04.02), interaction (starting from 37.06.33), personnel
(starting from 37.07.26) and performance (starting from 37.09.23).
A list of all parts in the ISO/IEC 2382 series can be found on the ISO and IEC websites.
Any feedback or questions on this document should be directed to the user’s national standards
body. A complete listing of these bodies can be found at www.iso.org/members.html and
www.iec.ch/national-committees.
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oSIST prEN ISO/IEC 2382-37:2023
ISO/IEC 2382-37:2022(E)
Introduction
The main purpose of this document is to provide a systematic description of the concepts in the subject
field of biometrics and to clarify the use of the terms in this subject field. The subject field of biometrics
is broken down into sub-fields.
This document is addressed to biometrics standardizers and to users of these standards.
The terms defined in this document are to be understood within the context of the subject field of
biometrics. When terms exist in various subject fields, the relevant subject field is indicated in angle
brackets.
Words that are written in italics are defined in this document. Words that are written in upright font
are to be understood in their natural language sense. The authority for natural language use of terms
in this document is the Concise Oxford English Dictionary (COED), Thumb Index Edition (tenth edition,
revised, 2002).
The numbering of all terms in this document begins with “37” to indicate the Subcommittee of Joint
Technical Committee ISO/IEC JTC 1 that created the terms. This is consistent will all other parts of the
ISO/IEC 2382 series. The subsequent numerical heading for each entry within this document (37.xx)
represents the number of the highest-level category in the concept map in which the term primarily
falls. This is consistent with “Systematic Order” as described in ISO 10241-1:2011, 5.1.2, in which the
heading reflects the concept system. In the first edition of this document (ISO/IEC 2382-37:2012),
the third numerical designator (37.xx.yy) was also consistent with “Systematic Order”, moving from
most general to more specific terms within each highest-level category of the concept map. With the
development of the current edition of this document, the decision was made to append the new terms
in each category such that the numbering of the earlier terms inherited from the 2012 edition would
not change. This implies that the third numerical designator is now in “Mixed Order” as described in
ISO 10241-1:2011, 5.1.3.
So, terms are added to this document in batches for each updated version. These terms are added in
alphabetical order. This ensures that the numbers allocated to a term remain the same and that they
can be referred to consistently.
The terms in this document are listed under a number of general headings.
The layout follows the directions given in ISO 10241-1. Thus, the elements of an entry appear in the
following order:
— Entry number (mandatory)
— Preferred term(s) (mandatory)
— Admitted term(s)
— Deprecated term(s)
— Definition (mandatory)
— Example(s)
— Note(s) to entry
The alphabetical index includes preferred and admitted terms.
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oSIST prEN ISO/IEC 2382-37:2023

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oSIST prEN ISO/IEC 2382-37:2023
INTERNATIONAL STANDARD ISO/IEC 2382-37:2022(E)
Information technology — Vocabulary —
Part 37:
Biometrics
1 Scope
This document establishes a systematic description of the concepts in the field of biometrics pertaining
to recognition of human beings. This document also reconciles variant terms in use in pre-existing
International Standards on biometrics against the preferred terms, thereby clarifying the use of terms
in this field.
This document does not cover concepts (represented by terms) from information technology, pattern
recognition, biology, mathematics, etc. Biometrics uses such fields of knowledge as a basis.
In principle, mode-specific terms are outside of scope of this document.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
ISO and IEC 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 Terms related to general concepts
37.01.01
biometric, adj
of or having to do with biometrics (37.01.03)
Note 1 to entry: The use of biometric as a noun, to mean for example, biometric characteristic (37.01.02), is
deprecated.
EXAMPLE 1 Incorrect usage #1: ICAO resolved that face is the biometric most suited to the practicalities of
travel documents.
EXAMPLE 2 Correct usage #1: ICAO resolved that face recognition is the biometric mode (37.02.05) most
suited to the practicalities of travel documents.
EXAMPLE 3 Incorrect usage #2: The biometric recorded in my passport is a facial image.
EXAMPLE 4 Correct usage #2: The biometric characteristic recorded in my passport is a facial image.
th
Note 2 to entry: Since the late 19 century the terms biometrics and biometry have been used with the general
meaning of counting, measuring and statistical analysis of any kind of data in the biological sciences including
the relevant medical sciences.
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oSIST prEN ISO/IEC 2382-37:2023
ISO/IEC 2382-37:2022(E)
37.01.02
biometric characteristic
DEPRECATED biometric
biological and behavioural characteristic of an individual from which distinguishing, repeatable
biometric features (37.03.11) can be extracted for the purpose of biometric recognition (37.01.03)
EXAMPLE Examples of biometric characteristics are Galton ridge structure, face topography, facial skin
texture, hand topography, finger topography, iris structure, vein structure of the hand, ridge structure of the
palm, retinal pattern, handwritten signature dynamics, etc.
37.01.03
biometric recognition
biometrics
automated recognition of individuals based on their biological and behavioural characteristics
Note 1 to entry: In the field of biometrics (as defined in this document), “Individual" is restricted in scope to refer
only to humans.
Note 2 to entry: The general meaning of biometrics encompasses counting, measuring and statistical analysis of
any kind of data in the biological sciences including the relevant medical sciences.
Note 3 to entry: Biometric recognition encompasses biometric verification (37.08.03) and biometric identification
(37.08.02).
Note 4 to entry: Automated recognition implies that a machine-based system is used for the recognition either
for the full process or assisted by a human being.
Note 5 to entry: Behavioural and biological characteristics cannot be completely separated which is why
the definition uses ‘and’ instead of ‘and/or’. For example, a fingerprint image results from the biological
characteristics of the finger ridge patterns and the behavioural act of presenting the finger.
Note 6 to entry: Use of 'authentication' as a synonym for “biometric verification or biometric identification” is
deprecated; the term biometric recognition is preferred.
3.2 Terms related to biometric systems
37.02.01
biometric capture subsystem
biometric capture devices (37.04.01) and any sub-processes required to execute a biometric capture
process (37.05.02)
Note 1 to entry: In some biometric systems (37.02.03), converting a signal from a biometric characteristic (37.01.02)
to a captured biometric sample (37.03.25) can include multiple components such as a camera, photographic paper,
printer, digital scanner, ink and paper.
Note 2 to entry: A biometric capture subsystem can consist of only a single biometric capture device.
37.02.02
biometric identification system
system that aims to perform biometric identification (37.08.02)
37.02.03
biometric system
system for the purpose of the biometric recognition (37.01.03) of individuals based on their behavioural
and biological characteristics
Note 1 to entry: A biometric system will contain both biometric (37.01.01) and non-biometric components.
37.02.04
biometric verification system
system that aims to perform biometric verification (37.08.03)
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oSIST prEN ISO/IEC 2382-37:2023
ISO/IEC 2382-37:2022(E)
37.02.05
mode
DEPRECATED biometric, noun
combination of a biometric characteristic (37.01.02) type, a sensor type and a processing method
Note 1 to entry: The processing algorithm may contain multiple methods, details of which are not necessarily
externally apparent. Thus, a biometric system (37.02.03) is considered as using one processing method, until it is
otherwise specified.
Note 2 to entry: Determining what constitutes a single type of sensor, processing method or biometric
characteristic will depend on convention. For example, current convention is that images of ridge patterns
from both thumbs and fingers represent a single biometric characteristic type, i.e. fingerprints. With respect to
sensors, infrared and optical bandwidth sensors are considered different types, but optical bandwidth sensors
are considered a single type despite imaging red, green and blue bandwidths.
37.02.06
multimodal
multiple in at least two out of three constituents of a mode (37.02.05) in a single biometric system
(37.02.03)
Note 1 to entry: Multiple implies difference in type.
37.02.07
system participation ratio
proportion of individuals eligible to use the system who do use the system
Note 1 to entry: Enrolled individuals are a subset of eligible individuals.
Note 2 to entry: This term is used to express the extent of take-up and use of a biometric system (37.02.03).
37.02.08
biometric fusion
combination of biometric (37.01.01) information from different sources to inform a comparison decision
(37.03.26) within a biometric transaction (37.06.45)
Note 1 to entry: The sources can be at the signal, feature, score, rank or decision level.
37.02.09
monobiometric system
biometric system (37.02.03) of which all of the following components are required to be singular:
biometric capture subsystem (37.02.01), biometric instance (37.03.46), biometric characteristic (37.01.02)
type, biometric algorithm (37.04.02) and biometric presentation (37.06.07)
Note 1 to entry: This term is needed for completeness. It can be the case that few systems are monobiometric, as
multiple instances and multipresentations are normally allowed.
37.02.10
multibiometric system
biometric system (37.02.03) of which at least one of the following components is required to be multiple:
biometric capture subsystem (37.02.01), biometric instance (37.03.46), biometric characteristic (37.01.02)
type, biometric algorithm (37.04.02) or biometric presentation (37.06.07)
37.02.11
multipresentation system
system that accepts multiple interactions of the biometric capture subject (37.07.03) with the biometric
capture subsystem (37.02.01) to obtain signals from a biometric characteristic (37.01.02) needed for a
single transaction (37.06.45)
Note 1 to entry: The interaction is seen from the perspective of the biometric capture subject.
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oSIST prEN ISO/IEC 2382-37:2023
ISO/IEC 2382-37:2022(E)
37.02.12
multibiometric, adj
based on multiple types of biometric characteristics (37.01.02)
EXAMPLE A biometric system that is based on two or more biometric characteristic types such as two or
more of face, voice, finger, iris, retina, hand geometry, signature/sign, keystroke, lip movement, gait, vein, DNA,
ear, foot, scent, etc.
3.3 Terms related to data in biometric systems
37.03.01
anonymized biometric data record
biometric data record (37.03.08) purposely disassociated from individual metadata
Note 1 to entry: The biometric data (37.03.06) within the biometric data record ultimately remains attributable
to an individual.
37.03.02
biometric application database
database of biometric data (37.03.06) and associated metadata developed from and supporting the
operation of a biometric (37.01.01) application
Note 1 to entry: The metadata may include transaction (37.06.45) history; authorizations (e.g. age) of the
biometric data subject (37.07.05); and archived biometric data.
Note 2 to entry: The term application includes the policies that govern the operation of the biometric system
(37.02.03) and evidence of that operation.
37.03.03
biometric application decision
decision to perform an action at the application level based on the results of a biometric (37.01.01)
process
Note 1 to entry: The application decision may include more than a comparison (37.05.07) process. For example,
a biometric capture process (37.05.02) may show that there are no biometric characteristics (37.01.02) to capture
and a decision can be made on this before any biometric characteristics are compared.
Note 2 to entry: Biometric application decisions can be made on the basis of complex policies involving both
biometric data (37.03.06) and non-biometric data.
37.03.04
biometric candidate
biometric reference identifier (37.03.19) of a biometric reference (37.03.16) in the biometric reference
database (37.03.17) determined to be sufficiently similar to the biometric probe (37.03.14) to warrant
further analysis
Note 1 to entry: Identification systems can be configured to return a fixed number of the most similar candidates
and, in other cases, the system could be configured to return candidates with biometric candidate scores
(37.03.24) that exceed a threshold (37.03.36).
37.03.05
biometric candidate list
set of zero, one or more biometric candidates (37.03.04)
Note 1 to entry: The biometric candidate list can be tentative if it is to be reduced by further processing.
37.03.06
biometric data
biometric sample (37.03.21) or aggregation of biometric samples at any stage of processing
EXAMPLE Biometric reference (37.03.16), biometric probe (37.03.14), biometric feature (37.03.11) or biometric
property (37.03.15).
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oSIST prEN ISO/IEC 2382-37:2023
ISO/IEC 2382-37:2022(E)
Note 1 to entry: Biometric data need not be attributable to a specific individual, e.g. Universal Background
Models.
37.03.07
biometric database
database of biometric data record(s) (37.03.08)
37.03.08
biometric data record
data record containing biometric data (37.03.06)
Note 1 to entry: A biometric data record may include non-biometric data.
37.03.09
biometric enrolment database
database of biometric enrolment data record(s) (37.03.10)
Note 1 to entry: A database of biometric data (37.03.06) not attributable to biometric data subjects (37.07.05)
is a biometric database (37.03.07), but not a biometric enrolment database, e.g. data for Universal Background
Models.
Note 2 to entry: The biometric enrolment database can optionally contain the biometric reference database
(37.03.17). Separation of the databases can be required due to security, privacy, legislation, architecture,
performance, etc.
Note 3 to entry: A single biometric reference (37.03.16) (e.g. a fingerprint on a storage card) can be considered as
a biometric enrolment database in some transactions (37.06.45).
37.03.10
biometric enrolment data record
data record attributed to a biometric data subject (37.07.05), containing non-biometric data and
associated with biometric reference identifier(s) (37.03.19)
Note 1 to entry: Data can be updated after enrolment.
Note 2 to entry: The biometric enrolment data record will either contain biometric reference data record(s)
(37.03.18) or pointer(s) to biometric reference data record(s).
Note 3 to entry: The associated biometric reference (37.03.16) can be null (for example, biometric enrollee
(37.07.06) lacks the biometric characteristic (37.01.02) or biometric capture process (37.05.02) is pending.
37.03.11
biometric feature
number or label extracted from biometric samples (37.03.21) and used for comparison (37.05.07)
Note 1 to entry: The set of numbers or labels are the output of a completed biometric feature extraction (37.05.04).
Note 2 to entry: The use of this term should be consistent with its use by the pattern recognition and mathematics
communities.
Note 3 to entry: A biometric feature set can also be considered a processed biometric sample.
Note 4 to entry: Biometric features may be extracted from an intermediate biometric sample (37.03.30).
Note 5 to entry: Filters applied to biometric samples are not themselves biometric features. However, the output
of the filter applied to the biometric samples can be. Therefore, eigenfaces are not biometric features, for example.
37.03.12
biometric identification decision
comparison decision (37.03.26) as to whether a biometric reference(s) (37.03.16) of a particular biometric
data subject (37.07.05) is in a biometric reference database (37.03.17)
Note 1 to entry: Return of a biometric candidate list (37.03.05) is not considered a biometric identification
decision.
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oSIST prEN ISO/IEC 2382-37:2023
ISO/IEC 2382-37:2022(E)
Note 2 to entry: A positive biometric identification (37.08.02) process is inferred from the output of a biometric
reference identifier (37.03.19).
37.03.13
biometric model
stored function generated from biometric data (37.03.06)
EXAMPLE Examples of biometric models could be a Hidden Markov Model, Gaussian Mixture Model or an
Artificial Neural Network.
Note 1 to entry: In most occasions the biometric model is a stored function which is dependent on the biometric
data subject (37.07.05).
Note 2 to entry: The function may be determined through training.
Note 3 to entry: A biometric model may involve intermediate processing similar to biometric feature extraction
(37.05.04).
37.03.14
biometric probe
biometric query
biometric sample (37.03.21) or biometric feature (37.03.11) set input to an algorithm for comparison
(37.05.07) to a biometric reference(s) (37.03.16)
Note 1 to entry: In some comparisons a biometric reference can potentially be used as the subject of the
comparison with other biometric references or incoming biometric samples used as the objects of the
comparisons. For example, in a duplicate enrolment check a biometric reference will be used as the subject for
comparisons against all other biometric references in the database.
Note 2 to entry: Typically, in a comparison process, incoming biometric samples serve as the subject of
comparisons against objects stored as biometric references in a database.
37.03.15
biometric property
descriptive attributes of the biometric data subject (37.07.05) estimated or derived from the biometric
sample (37.03.21) by automated means
EXAMPLE Fingerprints can be classified by the biometric properties of ridge-flow, i.e. arch, whorl and loop
types. Estimates of age or gender (37.07.31) from face recognition would also be biometric properties.
37.03.16
biometric reference
one or more stored biometric samples (37.03.21), biometric templates (37.03.22) or biometric models
(37.03.13) attributed to a biometric data subject (37.07.05) and used as the object of biometric
comparison (37.05.07)
EXAMPLE Face image stored digitally on a passport; fingerprint minutiae template on a National ID card or
Gaussian Mixture Model for speaker recognition, in a database.
Note 1 to entry: A biometric reference may be created with implicit or explicit use of auxiliary data, such as
Universal Background Models.
Note 2 to entry: The subject/object labelling in a comparison can be arbitrary. In some comparisons a biometric
reference can potentially be used as the subject of the comparison with other biometric references or incoming
biometric samples and input to a biometric algorithm (37.04.02) for comparison. For example, in a duplicate
enrolment check a biometric reference will be used as the subject for comparison against all other biometric
references in the database.
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oSIST prEN ISO/IEC 2382-37:2023
ISO/IEC 2382-37:2022(E)
37.03.17
biometric reference database
database of biometric reference data records (37.03.18)
Note 1 to entry: The biometric reference database may be a subset of the biometric enrolment database (37.03.09),
or it may be a separate database. Separation of the databases may be required due to security, privacy, legislation,
architecture, performance, etc.
37.03.18
biometric reference data record
indexed data record containing biometric reference(s) (37.03.16)
Note 1 to entry: There is not necessarily a one to one correspondence between biometric reference data records
and biometric data subjects (37.07.05). For example, a single biometric data subject can have several reference
data records and in some applications a single biometric reference data record can be associated with multiple
enrolments of a biometric data subject.
37.03.19
biometric reference identifier
pointer to a biometric reference data record (37.03.18) in the biometric reference database (37.03.17)
37.03.20
biometric representation
biometric sample (37.03.21) or biometric feature (37.03.11) set
Note 1 to entry: This term is used in the ISO/IEC 19794 series and the ISO/IEC 39794 series for labelling a sub-
record in a biometric data record (37.03.08).
37.03.21
biometric sample
analogue or digital representation of biometric characteristics (37.01.
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Questions, Comments and Discussion

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