SIST-TS ISO/TS 24634:2022
(Main)Management of terminology resources -- TBX-compliant representation of concept relations and subject fields
Management of terminology resources -- TBX-compliant representation of concept relations and subject fields
This document provides requirements and recommendations for representing subject fields and concept relations in TBX-compliant terminological document instances. Examples in this document utilize the DCA style of TBX markup.
Gestion des ressources terminologiques — Représentation des relations conceptuelles et des domaines conforme à TBX
Upravljanje terminoloških virov - Predstavitev konceptualnih razmerij in predmetnih področij, skladna s TBX
Ta dokument vsebuje zahteve in priporočila za predstavitev predmetnih področij ter konceptnih odnosov v primerkih terminoloških dokumentov, skladnih s TBX. Primeri v tem dokumentu uporabljajo slog DCA za označevanje TBX.
General Information
Buy Standard
Standards Content (Sample)
SLOVENSKI STANDARD
SIST-TS ISO/TS 24634:2022
01-februar-2022
Upravljanje terminoloških virov - Predstavitev konceptualnih razmerij in
predmetnih področij, skladna s TBX
Management of terminology resources -- TBX-compliant representation of concept
relations and subject fields
Gestion des ressources terminologiques — Représentation des relations conceptuelles
et des domaines conforme à TBX
Ta slovenski standard je istoveten z: ISO/TS 24634:2021
ICS:
01.020 Terminologija (načela in Terminology (principles and
koordinacija) coordination)
35.240.30 Uporabniške rešitve IT v IT applications in information,
informatiki, dokumentiranju in documentation and
založništvu publishing
SIST-TS ISO/TS 24634:2022 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST-TS ISO/TS 24634:2022
---------------------- Page: 2 ----------------------
SIST-TS ISO/TS 24634:2022
TECHNICAL ISO/TS
SPECIFICATION 24634
First edition
2021-11
Management of terminology
resources — TBX-compliant
representation of concept relations
and subject fields
Gestion des ressources terminologiques — Représentation des
relations conceptuelles et des domaines conforme à TBX
Reference number
ISO/TS 24634:2021(E)
© ISO 2021
---------------------- Page: 3 ----------------------
SIST-TS ISO/TS 24634:2022
ISO/TS 24634:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
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
ii
© ISO 2021 – All rights reserved
---------------------- Page: 4 ----------------------
SIST-TS ISO/TS 24634:2022
ISO/TS 24634:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Subject fields .3
4.1 General . 3
4.2 Specifying the name of the subject-field classification . 3
4.3 Defining the scope of subject-field values . 4
4.4 Hierarchy of subject fields . 5
4.5 Representing subject-field values in concept entries . 6
4.5.1 General . 6
4.5.2 Referencing the backmatter . 7
4.5.3 Expressing the position of the subject-field value in each entry . 7
4.6 Using a publicly available subject-field classification . 7
5 Representing subject-field classifications in the backmatter . 8
6 Concept relations . 9
6.1 Typology of concept relations . 9
6.2 TBX markup . 9
Annex A (informative) Typology of associative concept relations.11
Annex B (informative) Markup samples .13
Bibliography .15
iii
© ISO 2021 – All rights reserved
---------------------- Page: 5 ----------------------
SIST-TS ISO/TS 24634:2022
ISO/TS 24634:2021(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
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 ISO documents 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).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO 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).
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.
This document was prepared by Technical Committee ISO/TC 37, Language and terminology,
Subcommittee SC 3, Management of terminology resources.
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.
iv
© ISO 2021 – All rights reserved
---------------------- Page: 6 ----------------------
SIST-TS ISO/TS 24634:2022
ISO/TS 24634:2021(E)
Introduction
This document describes best practices for specifying subject fields and concept relations in terminology
databases (termbases). It also demonstrates how to represent subject fields and concept relations in
terminological document instances in a way that is compliant with ISO 30042.
Concept relations for specific TBX dialects are specified in the form of dedicated TBX modules. Subject
fields can be declared in the TBX backmatter or implemented through an XML namespace. This
document is intended to maximize interoperability of these types of information.
Throughout this document, reference is made to data categories (DCs). To maximize interoperability,
it is essential that termbases use the same DCs, as described in this document, for the same purposes.
[2]
DatCatInfo is a publicly available electronic repository of data category specifications. Data categories
used in the examples in this document are taken from DatCatInfo.
This document complements ISO 30042.
v
© ISO 2021 – All rights reserved
---------------------- Page: 7 ----------------------
SIST-TS ISO/TS 24634:2022
---------------------- Page: 8 ----------------------
SIST-TS ISO/TS 24634:2022
TECHNICAL SPECIFICATION ISO/TS 24634:2021(E)
Management of terminology resources — TBX-compliant
representation of concept relations and subject fields
1 Scope
This document provides requirements and recommendations for representing subject fields and
concept relations in TBX-compliant terminological document instances. Examples in this document
utilize the DCA style of TBX markup.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 1087, Terminology work and terminology science — Vocabulary
1)
ISO 12620-1 , Management of terminology resources — Data categories — Part 1: Specifications
2)
ISO 12620-2 , Management of terminology resources — Data categories — Part 2: Repositories
ISO 30042, Management of terminology resources — TermBase eXchange (TBX)
W3C, SKOS Simple Knowledge Organization System Reference, W3C Recommendation 18 August 2009.
Available at: https:// www .w3 .org/ TR/ skos -reference/
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 1087, ISO 12620-1, ISO 12620-2,
ISO 30042 and the following apply.
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
concept relation
relation between concepts
[SOURCE: ISO 1087:2019, 3.2.11]
3.2
hierarchical relation
hierarchical concept relation
generic relation (3.3) or partitive relation (3.4)
[SOURCE: ISO 1087:2019, 3.2.12]
1) Under preparation. Stage at the time of publication: ISO/DIS 12620-1:2021.
2) Under preparation. Stage at the time of publication: ISO/DIS 12620-2:2021.
1
© ISO 2021 – All rights reserved
---------------------- Page: 9 ----------------------
SIST-TS ISO/TS 24634:2022
ISO/TS 24634:2021(E)
3.3
generic relation
generic concept relation
genus-species relation
concept relation (3.1) between a generic concept and a specific concept where the intension of the
specific concept includes the intension of the generic concept plus at least one additional delimiting
characteristic
[SOURCE: ISO 1087:2019, 3.2.13, modified — Example and Notes to entry omitted.]
3.4
partitive relation
partitive concept relation
part-whole relation
part-of relation
concept relation (3.1) between a comprehensive concept and a partitive concept
[SOURCE: ISO 1087:2019, 3.2.14, modified — Example omitted.]
3.5
associative relation
associative concept relation
pragmatic relation
non-hierarchical concept relation (3.1)
[SOURCE: ISO 1087:2019, 3.2.23, modified — Example omitted.]
3.6
concept entry
terminological entry
part of a terminological data collection which contains the terminological data related to one concept
[SOURCE: ISO 30042:2019, 3.5, modified — Term “entry” omitted.]
3.7
data category
DC
class of data items that are closely related from a formal or semantic point of view
EXAMPLE /part of speech/, /subject field/, /definition/.
Note 1 to entry: A data category can be viewed as a generalization of the notion of a field in a database.
Note 2 to entry: In running text, such as in this document, data categories are enclosed in forward slashes
(e.g. /part of speech/).
[SOURCE: ISO 30042:2019, 3.8]
3.8
picklist
list of permissible values of a closed data category (3.7)
3.9
subject field
domain
field of special knowledge
[SOURCE: ISO 10241-1:2011, 3.3.1, modified — “subject field” is the preferred term, and Notes to entry
omitted.]
2
© ISO 2021 – All rights reserved
---------------------- Page: 10 ----------------------
SIST-TS ISO/TS 24634:2022
ISO/TS 24634:2021(E)
3.10
subject-field classification
organization of the subject fields (3.9) and subfields dealt with in a terminological data collection (3.12)
into a logical structure
3.11
termbase
terminology database
database comprising a terminological data collection (3.12)
[SOURCE: ISO 30042:2019, 3.28]
3.12
terminological data collection
resource consisting of concept entries (3.6) with associated metadata and documentary information
EXAMPLE A TBX document instance.
[SOURCE: ISO 30042:2019, 3.29, modified — Admitted term “TDC” omitted, and example “ISO 1087”
omitted.]
4 Subject fields
4.1 General
Terminology databases (termbases), particularly large ones, frequently need to be organized according
to subject fields. In this case, there may be a /subject field/ data category at the concept level (this is
implemented as a element).
A picklist shall be used as the content model for subject fields. If the organization in question has a
taxonomy that reflects its field of activity, the subject-field classification should reflect that taxonomy
if appropriate.
Subject-field classifications can be declared in the backmatter of a TBX document instance, or through
an XML namespace. In this document, the backmatter approach is described. The XML namespace
approach requires a DCT style of TBX markup and can be modelled in parallel to the backmatter method.
A given TBX document instance can use more than one subject-field classification.
4.2 Specifying the name of the subject-field classification
The name of the subject-field classification used in a TBX document instance shall be declared in the
TBX header.
EXAMPLE 1
Termbase from ABC company
ABC Subject-Field Classification
Additional information about the subject field shall be provided in the backmatter, as described in
subsequent sections of this document. For this purpose, the id attribute acts as a unique pointer to the
relevant section in the backmatter.
3
© ISO 2021 – All rights reserved
---------------------- Page: 11 ----------------------
SIST-TS ISO/TS 24634:2022
ISO/TS 24634:2021(E)
When more than one subject-field classification is used in a TBX document instance, the additional
name declaration shall be provided.
EXAMPLE 2
Termbase from ABC company
ABC Subject-Field Classification
DEF Subject-Field Classification
If the additional subject-field classification is a result of the merging of two termbases, the name of the
termbase may also be provided.
EXAMPLE 3
Termbase from ABC company
ABC Subject-Field Classification
Termbase from DEF company
DEF Subject-Field Classification
4.3 Defining the scope of subject-field values
Terminologists and other users of termbases often find it difficult to determine which subject field a
concept should be assigned to. This is largely because historically the scope and meaning of subject
fields themselves have not been defined for the users. Therefore, it is recommended that a clear
description of the scope of each subject field be available to users of the termbase. In this document, a
method is described for recording this information in the backmatter of a TBX document instance.
[3] [4]
Some termbases use a publicly available subject-field classification, such as EuroVoc or Lenoch .
These sources provide descriptions of the scope and meaning of their subject fields, and therefore, it is
recommended to avoid duplicating this information in a termbase.
Termbases that adopt a unique subject-field classification should include information about the scope of
the subject-field values in the backmatter of the TBX document instance.
In all cases, the subject-field description should be available or known to termbase users when they are
assigning a subject-field value to a terminological entry. Figure 1 shows an example of a subject-field
description from an existing termbase.
4
© ISO 2021 – All rights reserved
---------------------- Page: 12 ----------------------
SIST-TS ISO/TS 24634:2022
ISO/TS 24634:2021(E)
Figure 1 — Sample description of a subject field
4.4 Hierarchy of subject fields
Frequently it is not sufficient to have a simple list of subject-field values without any parent/child
relationships (referred to as a “flat” list). For subsetting and search purposes, large termbases benefit
from a multi-level hierarchy of subject fields. Figure 2 shows a multi-level subject-field classification,
with Energy having two subordinate levels, and Environment and Natu
...
TECHNICAL ISO/TS
SPECIFICATION 24634
First edition
2021-11
Management of terminology
resources — TBX-compliant
representation of concept relations
and subject fields
Gestion des ressources terminologiques — Représentation des
relations conceptuelles et des domaines conforme à TBX
Reference number
ISO/TS 24634:2021(E)
© ISO 2021
---------------------- Page: 1 ----------------------
ISO/TS 24634:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
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
ii
© ISO 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/TS 24634:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Subject fields .3
4.1 General . 3
4.2 Specifying the name of the subject-field classification . 3
4.3 Defining the scope of subject-field values . 4
4.4 Hierarchy of subject fields . 5
4.5 Representing subject-field values in concept entries . 6
4.5.1 General . 6
4.5.2 Referencing the backmatter . 7
4.5.3 Expressing the position of the subject-field value in each entry . 7
4.6 Using a publicly available subject-field classification . 7
5 Representing subject-field classifications in the backmatter . 8
6 Concept relations . 9
6.1 Typology of concept relations . 9
6.2 TBX markup . 9
Annex A (informative) Typology of associative concept relations.11
Annex B (informative) Markup samples .13
Bibliography .15
iii
© ISO 2021 – All rights reserved
---------------------- Page: 3 ----------------------
ISO/TS 24634:2021(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
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 ISO documents 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).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO 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).
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.
This document was prepared by Technical Committee ISO/TC 37, Language and terminology,
Subcommittee SC 3, Management of terminology resources.
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.
iv
© ISO 2021 – All rights reserved
---------------------- Page: 4 ----------------------
ISO/TS 24634:2021(E)
Introduction
This document describes best practices for specifying subject fields and concept relations in terminology
databases (termbases). It also demonstrates how to represent subject fields and concept relations in
terminological document instances in a way that is compliant with ISO 30042.
Concept relations for specific TBX dialects are specified in the form of dedicated TBX modules. Subject
fields can be declared in the TBX backmatter or implemented through an XML namespace. This
document is intended to maximize interoperability of these types of information.
Throughout this document, reference is made to data categories (DCs). To maximize interoperability,
it is essential that termbases use the same DCs, as described in this document, for the same purposes.
[2]
DatCatInfo is a publicly available electronic repository of data category specifications. Data categories
used in the examples in this document are taken from DatCatInfo.
This document complements ISO 30042.
v
© ISO 2021 – All rights reserved
---------------------- Page: 5 ----------------------
TECHNICAL SPECIFICATION ISO/TS 24634:2021(E)
Management of terminology resources — TBX-compliant
representation of concept relations and subject fields
1 Scope
This document provides requirements and recommendations for representing subject fields and
concept relations in TBX-compliant terminological document instances. Examples in this document
utilize the DCA style of TBX markup.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 1087, Terminology work and terminology science — Vocabulary
1)
ISO 12620-1 , Management of terminology resources — Data categories — Part 1: Specifications
2)
ISO 12620-2 , Management of terminology resources — Data categories — Part 2: Repositories
ISO 30042, Management of terminology resources — TermBase eXchange (TBX)
W3C, SKOS Simple Knowledge Organization System Reference, W3C Recommendation 18 August 2009.
Available at: https:// www .w3 .org/ TR/ skos -reference/
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 1087, ISO 12620-1, ISO 12620-2,
ISO 30042 and the following apply.
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
concept relation
relation between concepts
[SOURCE: ISO 1087:2019, 3.2.11]
3.2
hierarchical relation
hierarchical concept relation
generic relation (3.3) or partitive relation (3.4)
[SOURCE: ISO 1087:2019, 3.2.12]
1) Under preparation. Stage at the time of publication: ISO/DIS 12620-1:2021.
2) Under preparation. Stage at the time of publication: ISO/DIS 12620-2:2021.
1
© ISO 2021 – All rights reserved
---------------------- Page: 6 ----------------------
ISO/TS 24634:2021(E)
3.3
generic relation
generic concept relation
genus-species relation
concept relation (3.1) between a generic concept and a specific concept where the intension of the
specific concept includes the intension of the generic concept plus at least one additional delimiting
characteristic
[SOURCE: ISO 1087:2019, 3.2.13, modified — Example and Notes to entry omitted.]
3.4
partitive relation
partitive concept relation
part-whole relation
part-of relation
concept relation (3.1) between a comprehensive concept and a partitive concept
[SOURCE: ISO 1087:2019, 3.2.14, modified — Example omitted.]
3.5
associative relation
associative concept relation
pragmatic relation
non-hierarchical concept relation (3.1)
[SOURCE: ISO 1087:2019, 3.2.23, modified — Example omitted.]
3.6
concept entry
terminological entry
part of a terminological data collection which contains the terminological data related to one concept
[SOURCE: ISO 30042:2019, 3.5, modified — Term “entry” omitted.]
3.7
data category
DC
class of data items that are closely related from a formal or semantic point of view
EXAMPLE /part of speech/, /subject field/, /definition/.
Note 1 to entry: A data category can be viewed as a generalization of the notion of a field in a database.
Note 2 to entry: In running text, such as in this document, data categories are enclosed in forward slashes
(e.g. /part of speech/).
[SOURCE: ISO 30042:2019, 3.8]
3.8
picklist
list of permissible values of a closed data category (3.7)
3.9
subject field
domain
field of special knowledge
[SOURCE: ISO 10241-1:2011, 3.3.1, modified — “subject field” is the preferred term, and Notes to entry
omitted.]
2
© ISO 2021 – All rights reserved
---------------------- Page: 7 ----------------------
ISO/TS 24634:2021(E)
3.10
subject-field classification
organization of the subject fields (3.9) and subfields dealt with in a terminological data collection (3.12)
into a logical structure
3.11
termbase
terminology database
database comprising a terminological data collection (3.12)
[SOURCE: ISO 30042:2019, 3.28]
3.12
terminological data collection
resource consisting of concept entries (3.6) with associated metadata and documentary information
EXAMPLE A TBX document instance.
[SOURCE: ISO 30042:2019, 3.29, modified — Admitted term “TDC” omitted, and example “ISO 1087”
omitted.]
4 Subject fields
4.1 General
Terminology databases (termbases), particularly large ones, frequently need to be organized according
to subject fields. In this case, there may be a /subject field/ data category at the concept level (this is
implemented as a element).
A picklist shall be used as the content model for subject fields. If the organization in question has a
taxonomy that reflects its field of activity, the subject-field classification should reflect that taxonomy
if appropriate.
Subject-field classifications can be declared in the backmatter of a TBX document instance, or through
an XML namespace. In this document, the backmatter approach is described. The XML namespace
approach requires a DCT style of TBX markup and can be modelled in parallel to the backmatter method.
A given TBX document instance can use more than one subject-field classification.
4.2 Specifying the name of the subject-field classification
The name of the subject-field classification used in a TBX document instance shall be declared in the
TBX header.
EXAMPLE 1
Termbase from ABC company
ABC Subject-Field Classification
Additional information about the subject field shall be provided in the backmatter, as described in
subsequent sections of this document. For this purpose, the id attribute acts as a unique pointer to the
relevant section in the backmatter.
3
© ISO 2021 – All rights reserved
---------------------- Page: 8 ----------------------
ISO/TS 24634:2021(E)
When more than one subject-field classification is used in a TBX document instance, the additional
name declaration shall be provided.
EXAMPLE 2
Termbase from ABC company
ABC Subject-Field Classification
DEF Subject-Field Classification
If the additional subject-field classification is a result of the merging of two termbases, the name of the
termbase may also be provided.
EXAMPLE 3
Termbase from ABC company
ABC Subject-Field Classification
Termbase from DEF company
DEF Subject-Field Classification
4.3 Defining the scope of subject-field values
Terminologists and other users of termbases often find it difficult to determine which subject field a
concept should be assigned to. This is largely because historically the scope and meaning of subject
fields themselves have not been defined for the users. Therefore, it is recommended that a clear
description of the scope of each subject field be available to users of the termbase. In this document, a
method is described for recording this information in the backmatter of a TBX document instance.
[3] [4]
Some termbases use a publicly available subject-field classification, such as EuroVoc or Lenoch .
These sources provide descriptions of the scope and meaning of their subject fields, and therefore, it is
recommended to avoid duplicating this information in a termbase.
Termbases that adopt a unique subject-field classification should include information about the scope of
the subject-field values in the backmatter of the TBX document instance.
In all cases, the subject-field description should be available or known to termbase users when they are
assigning a subject-field value to a terminological entry. Figure 1 shows an example of a subject-field
description from an existing termbase.
4
© ISO 2021 – All rights reserved
---------------------- Page: 9 ----------------------
ISO/TS 24634:2021(E)
Figure 1 — Sample description of a subject field
4.4 Hierarchy of subject fields
Frequently it is not sufficient to have a simple list of subject-field values without any parent/child
relationships (referred to as a “flat” list). For subsetting and search purposes, large termbases benefit
from a multi-level hierarchy of subject fields. Figure 2 shows a multi-level subject-field classification,
with Energy having two subordinate levels, and Environment and Natural Resources having one
subordinate level. Figure 3 shows another example from the field of mining.
5
© ISO 2021 – All rights reserved
---------------------- Page: 10 ----------------------
ISO/TS 24634:2021(E)
Figure 2 — Multi-level subject-field classification, sample 1
Figure 3 — Multi-level subject-field classification, sample 2
4.5 Representing subject-field values in concept entries
4.5.1 General
In a TBX document instance, the value of a subject field in a specific concept entry is indicated as the
content of a element with the "subjectField" type attribute value.
EXAMPLE 1
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.