SIST EN ISO 19126:2021
(Main)Geographic information - Feature concept dictionaries and registers (ISO 19126:2021)
Geographic information - Feature concept dictionaries and registers (ISO 19126:2021)
This document specifies a schema for feature concept dictionaries to be established and managed as
registers. It does not specify schemas for feature catalogues or for the management of feature catalogues
as registers. However, as feature catalogues are often derived from feature concept dictionaries, this
document does specify a schema for a hierarchical register of feature concept dictionaries and feature
catalogues. These registers are in accordance with ISO 19135-1.
Geoinformation - Verzeichnisse und Register für Featurekonzepte (ISO 19126:2021)
Information géographique - Dictionnaires de concepts de caractéristiques et registres (ISO 19126:2021)
Le présent document spécifie un schéma pour les dictionnaires de concepts d'entités à établir et à gérer comme des registres. Il ne spécifie pas de schémas pour les catalogues d'entités ou pour leur gestion comme des registres. Toutefois, étant donné que les catalogues d'entités sont souvent dérivés des dictionnaires de concepts d'entités, le présent document ne spécifie pas un schéma pour un registre hiérarchique de dictionnaires de concepts d'entités et de catalogues d'entités. Ces registres sont conformes à l'ISO 19135-1.
Geografske informacije - Slovarji in registri konceptov o pojavih (ISO 19126:2021)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 19126:2021
01-september-2021
Nadomešča:
SIST EN ISO 19126:2010
Geografske informacije - Slovarji in registri konceptov o pojavih (ISO 19126:2021)
Geographic information - Feature concept dictionaries and registers (ISO 19126:2021)
Geoinformation - Verzeichnisse und Register für Featurekonzepte (ISO 19126:2021)
Information géographique - Dictionnaires de concepts de caractéristiques et registres
(ISO 19126:2021)
Ta slovenski standard je istoveten z: EN ISO 19126:2021
ICS:
01.040.07 Naravoslovne in uporabne Natural and applied sciences
vede (Slovarji) (Vocabularies)
07.040 Astronomija. Geodezija. Astronomy. Geodesy.
Geografija Geography
35.240.70 Uporabniške rešitve IT v IT applications in science
znanosti
SIST EN ISO 19126:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 19126:2021
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SIST EN ISO 19126:2021
EN ISO 19126
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2021
EUROPÄISCHE NORM
ICS 35.240.70 Supersedes EN ISO 19126:2009
English Version
Geographic information - Feature concept dictionaries and
registers (ISO 19126:2021)
Information géographique - Dictionnaires de concepts Geoinformation - Verzeichnisse und Register für
de caractéristiques et registres (ISO 19126:2021) Featurekonzepte (ISO 19126:2021)
This European Standard was approved by CEN on 20 May 2021.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 19126:2021 E
worldwide for CEN national Members.
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SIST EN ISO 19126:2021
EN ISO 19126:2021 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 19126:2021
EN ISO 19126:2021 (E)
European foreword
This document (EN ISO 19126:2021) has been prepared by Technical Committee ISO/TC 211
"Geographic information/Geomatics" in collaboration with Technical Committee CEN/TC 287
“Geographic Information” the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by December 2021, and conflicting national standards
shall be withdrawn at the latest by December 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 19126:2009.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 19126:2021 has been approved by CEN as EN ISO 19126:2021 without any modification.
3
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SIST EN ISO 19126:2021
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SIST EN ISO 19126:2021
INTERNATIONAL ISO
STANDARD 19126
Second edition
2021-05
Geographic information — Feature
concept dictionaries and registers
Information géographique — Dictionnaires de concepts d'entités et
registres
Reference number
ISO 19126:2021(E)
©
ISO 2021
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SIST EN ISO 19126:2021
ISO 19126:2021(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: 8 ----------------------
SIST EN ISO 19126:2021
ISO 19126:2021(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Conformance . 4
4.1 General . 4
4.2 Conformance for a feature concept dictionary . 5
4.3 Conformance for a register of feature concept dictionaries and/or feature catalogues . 5
5 Concepts . 5
5.1 General . 5
5.2 Feature concept dictionary . 5
5.3 Registers . 6
5.3.1 Overview . 6
5.3.2 Register structure . 6
5.3.3 Compound registry . 6
5.3.4 Register management and registration . 7
5.4 Feature concept dictionary register . 7
5.5 Register of feature concept dictionary and feature catalogue registers . . 8
5.6 Relationship to data product specifications and application schemas . 8
5.7 Community implementations . 8
5.8 Notation . 9
5.9 Packages . 9
6 Feature concept dictionary schema .10
6.1 General .10
6.2 CD_FeatureConceptDictionary .11
6.2.1 General.11
6.2.2 Requirements .12
6.2.3 Properties .13
6.3 CD_Scope .14
6.3.1 General.14
6.3.2 Requirements .14
6.3.3 Properties .14
6.4 CD_Concept .15
6.4.1 General.15
6.4.2 Requirements .15
6.4.3 Properties .16
6.4.4 Subclasses .17
6.5 CD_ConceptRelationship .17
6.5.1 General.17
6.5.2 Requirements .17
6.5.3 Properties .17
6.6 CD_ConceptRelationshipType .18
6.6.1 General.18
6.6.2 Requirements .18
6.6.3 Code values .18
6.7 CD_FeatureConcept .18
6.7.1 General.18
6.7.2 Requirements .19
6.7.3 Properties .19
6.8 CD_FeaturePropertyConcept .20
6.8.1 General.20
© ISO 2021 – All rights reserved iii
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SIST EN ISO 19126:2021
ISO 19126:2021(E)
6.8.2 Requirements .20
6.8.3 Properties .20
6.8.4 Subclasses .20
6.9 CD_FeatureAttributeConcept .20
6.9.1 General.20
6.9.2 Requirements .21
6.9.3 Properties .21
6.10 CD_NominalValueConcept .22
6.10.1 General.22
6.10.2 Requirements .22
6.10.3 Properties .23
6.11 CD_FeatureAssociationConcept .23
6.11.1 General.23
6.11.2 Requirements .24
6.11.3 Properties .24
6.12 CD_FeatureRoleConcept .25
6.12.1 General.25
6.12.2 Requirements .25
6.12.3 Properties .25
6.13 CD_FeatureOperationConcept . .26
6.13.1 General.26
6.13.2 Requirements .26
6.13.3 Properties .26
7 Management of feature concept dictionaries as registers .27
7.1 General .27
7.2 Item class for feature concepts .27
7.3 Item class for feature attribute concepts . .28
7.4 Item class for nominal value concepts .28
7.5 Item class for feature association concepts .29
7.6 Item class for feature operation concepts .29
8 Register of feature concept dictionaries and feature catalogues .29
8.1 General .29
8.2 HR_FeatureInformationSubregisterDescription .30
8.2.1 General.30
8.2.2 Requirements .31
8.2.3 Properties .32
8.2.4 Constraints on inherited attributes and associations .32
8.3 HR_FeatureInfoSubRegisterType .33
8.3.1 Requirements .33
8.3.2 Code values .33
8.4 Item classes for feature information subregisters .33
8.4.1 General.33
8.4.2 Item class for feature concept dictionaries .34
8.4.3 Item class for feature data catalogues .34
Annex A (normative) Abstract test suite .35
Annex B (normative) Information to be included in registration proposals .44
Bibliography .49
iv © ISO 2021 – All rights reserved
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SIST EN ISO 19126:2021
ISO 19126:2021(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 211, Geographic information/Geomatics,
in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/
TC 287, Geographic Information, in accordance with the Agreement on technical cooperation between
ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 19126:2009), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— the UML diagrams has been improved to conform to the current style and the UML to the ISO/TC 211
Harmonized Model for both the 2009 version and this document has been added;
— minor updates have been made to take into account changes to other standards, particularly
ISO 19135-1.
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.
© ISO 2021 – All rights reserved v
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SIST EN ISO 19126:2021
ISO 19126:2021(E)
Introduction
This document specifies a schema for geographic feature concept dictionaries managed as registers.
As described in ISO 19101-1, geographic features are abstractions of real world phenomena associated
with a location relative to the surface of the earth, about which data are collected, maintained and
disseminated.
A feature concept dictionary provides basic definitions and related information about a set of concepts
that may be used to describe geographic features and shared across multiple application areas.
Elements from a feature concept dictionary can be reused in one or more feature catalogues. A feature
catalogue is often associated with a particular application schema, product specification and data set. It
provides a complete textual specification of a set of feature types and their properties and relationships.
See Annex A for further discussion of the relationships between feature concept dictionaries, feature
catalogues, application schemas and product specifications.
ISO 19135-1 specifies procedures for the registration of items of geographic information. Items
of geographic information that can be registered are members of object classes specified in other
standards. This document defines object classes and specifies rules used to establish and maintain
feature concept dictionaries as ISO 19135-1 conformant register schemas.
ISO 19135-1 specifies the structure of a hierarchical register in which the principal register holds a set of
items that describe the subregisters. This document specifies a schema for a hierarchical register where
the subregisters are feature concept dictionaries and/or feature catalogues. This document specifies an
accompanying schema. The resulting hierarchical register can be used as a basis for harmonization and
the establishment of interoperability between different geographic information communities.
Feature concept dictionaries and feature catalogues maintained as registers can serve as sources of
reference for similar registers established by other geographic information communities as part
of a system of cross-referencing. Cross-referencing between respective ite
...
SLOVENSKI STANDARD
oSIST prEN ISO 19126:2020
01-julij-2020
Geografske informacije - Slovarji in registri konceptov o pojavih (ISO/DIS
19126:2020)
Geographic information - Feature concept dictionaries and registers (ISO/DIS
19126:2020)
Geoinformation - Verzeichnisse und Register für Featurekonzepte (ISO/DIS 19126:2020)
Information géographique - Dictionnaires de concepts de caractéristiques et registres
(ISO/DIS 19126:2020)
Ta slovenski standard je istoveten z: prEN ISO 19126
ICS:
01.040.07 Naravoslovne in uporabne Natural and applied sciences
vede (Slovarji) (Vocabularies)
07.040 Astronomija. Geodezija. Astronomy. Geodesy.
Geografija Geography
35.240.70 Uporabniške rešitve IT v IT applications in science
znanosti
oSIST prEN ISO 19126:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 19126:2020
---------------------- Page: 2 ----------------------
oSIST prEN ISO 19126:2020
DRAFT INTERNATIONAL STANDARD
ISO/DIS 19126
ISO/TC 211 Secretariat: SIS
Voting begins on: Voting terminates on:
2020-05-22 2020-08-14
Geographic information — Feature concept dictionaries
and registers
Information géographique — Dictionnaires de concepts de caractéristiques et registres
ICS: 35.240.70
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 19126:2020(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2020
---------------------- Page: 3 ----------------------
oSIST prEN ISO 19126:2020
ISO/DIS 19126:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 19126:2020
ISO/DIS 19126:2020(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviations . 1
3.1 Terms and definitions . 1
3.2 Abbreviations . 4
4 Conformance . 5
4.1 Introduction . 5
4.2 Conformance for a feature concept dictionary . 5
4.3 Conformance for a register of feature concept dictionaries and/or feature catalogues . 5
5 Concepts . 5
5.1 Introduction . 5
5.2 Feature concept dictionary . 6
5.3 Registers . 6
5.3.1 Overview . 6
5.3.2 Register structure . 6
5.3.3 Compound registry . 6
5.3.4 Register management and registration . 8
5.4 Feature concept dictionary register . 8
5.5 Register of feature concept dictionary and feature catalogue registers . . 9
5.6 Relationship to data product specifications and application schemas . 9
5.7 Community implementations . 9
5.8 Notation .10
5.9 Packages .10
6 Feature concept dictionary schema .11
6.1 Introduction .11
6.2 CD_FeatureConceptDictionary .12
6.2.1 Introduction .12
6.2.2 dictionaryScope .13
6.2.3 theme .13
6.2.4 fieldOfApplication .13
6.2.5 containedConcept .14
6.3 CD_Scope .14
6.3.1 Introduction .14
6.3.2 name .14
6.3.3 description .14
6.4 CD_Concept .14
6.4.1 Introduction .14
6.4.2 category and member . .16
6.4.3 relatedConcept .16
6.4.4 Subclasses .16
6.5 CD_ConceptRelationship .16
6.5.1 Introduction .16
6.5.2 type .16
6.5.3 explanation .17
6.6 CD_ConceptRelationshipType .17
6.7 CD_FeatureConcept .17
6.7.1 Introduction .17
6.7.2 propertyConcept .17
6.8 CD_FeaturePropertyConcept .18
6.8.1 Introduction .18
© ISO 2020 – All rights reserved iii
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oSIST prEN ISO 19126:2020
ISO/DIS 19126:2020(E)
6.8.2 featureContext.18
6.8.3 Subclasses .18
6.9 CD_FeatureAttributeConcept .19
6.9.1 Introduction .19
6.9.2 dataType .19
6.9.3 quantityMeasure .19
6.9.4 value . .20
6.10 CD_NominalValueConcept .20
6.10.1 Introduction .20
6.10.2 attributeConcept .20
6.11 CD_FeatureAssociationConcept .20
6.11.1 Introduction .20
6.11.2 role .21
6.12 CD_FeatureRoleConcept .21
6.12.1 Introduction .21
6.12.2 roleName .21
6.12.3 definition .22
6.12.4 associationContext .22
6.13 CD_FeatureOperationConcept . .22
6.13.1 Introduction .22
6.13.2 signature .22
7 Management of feature concept dictionaries as registers .22
7.1 Introduction .22
7.2 Item class for feature concepts .23
7.3 Item class for feature attribute concepts . .23
7.4 Item class for nominal value concepts .23
7.5 Item class for feature association concepts .24
7.6 Item class for feature operation concepts .24
8 Register of feature concept dictionaries and feature catalogues .24
8.1 Introduction .24
8.2 HR_FeatureInformationSubregisterDescription .25
8.2.1 Introduction .25
8.2.2 type .25
8.2.3 dictionaryScope .25
8.2.4 registerIdentifier .26
8.2.5 Constraints on inherited attributes and associations .26
8.3 Item classes for feature information subregisters .26
8.3.1 Introduction .26
8.3.2 Item class for feature concept dictionaries .26
8.3.3 Item class for feature data catalogues .27
Annex A (normative) Abstract test suite .28
Annex B (normative) Abstract test suit Information to be included in registration proposals .29
Bibliography .34
iv © ISO 2020 – All rights reserved
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oSIST prEN ISO 19126:2020
ISO/DIS 19126:2020(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 on 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 the following
URL: www .iso .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 211, Geographic information/Geomatics.
The main changes compared to the previous edition are as follows:
— Improved the UML diagrams to conform to the current style and added the UML to the ISO/TC 211
Harmonized Model for both the 2009 version and this version of ISO 19126.
— Made minor updates to take into account changes to other standards, particularly ISO 19135-1:2015,
Geographic information — Procedures for item registration — Part 1: Fundamentals.
© ISO 2020 – All rights reserved v
---------------------- Page: 7 ----------------------
oSIST prEN ISO 19126:2020
ISO/DIS 19126:2020(E)
Introduction
This International Standard specifies a schema for geographic feature concept dictionaries managed as
registers. As described in ISO 19101-1, geographic features are abstractions of real world phenomena
associated with a location relative to the surface of the earth, about which data are collected, maintained
and disseminated.
A feature concept dictionary provides basic definitions and related information about a set of concepts
that may be used to describe geographic features and shared across multiple application areas.
Elements from a feature concept dictionary may be reused in one or more feature catalogues. A feature
catalogue is often associated with a particular application schema, product specification and data set. It
provides a complete textual specification of a set of feature types and their properties and relationships.
See Annex A for further discussion of the relationships between feature concept dictionaries, feature
catalogues, application schemas and product specifications.
ISO 19135-1 specifies procedures for the registration of items of geographic information. Items of
geographic information that may be registered are members of object classes specified in technical
standards such as those developed by ISO/TC 211. This International Standard defines object classes
and specifies rules used to establish and maintain feature concept dictionaries as ISO 19135-1
conformant register schemas.
ISO 19135-1 specifies the structure of a hierarchical register in which the principal register holds a
set of items that describe the subregisters. This International Standard specifies a schema for a
hierarchical register where the subregisters are feature concept dictionaries and/or feature catalogues.
This International Standard specifies an accompanying schema. The resulting hierarchical register
may be used as a basis for harmonization and the establishment of interoperability between different
geographic information communities.
Feature concept dictionaries and feature catalogues maintained as registers may serve as sources
of reference for similar registers established by other geographic information communities as part
of a system of cross-referencing. Cross-referencing between respective items in registers of items
of geographic information may be difficult in cases where the structure of registers differs between
information communities. This International Standard may serve as a guide for different information
communities to develop compatible registers that can support a system of geographic information
cross-referencing.
vi © ISO 2020 – All rights reserved
---------------------- Page: 8 ----------------------
oSIST prEN ISO 19126:2020
DRAFT INTERNATIONAL STANDARD ISO/DIS 19126:2020(E)
Geographic information — Feature concept dictionaries
and registers
1 Scope
This International Standard specifies a schema for feature concept dictionaries to be established and
managed as registers. It does not specify schemas for feature catalogues or for the management of
feature catalogues as registers. However, because feature catalogues are often derived from feature
concept dictionaries, this International Standard does specify a schema for a hierarchical register of
feature concept dictionaries and feature catalogues. These registers are in accordance with ISO 19135-1.
2 Normative references
The following referenced documents are indispensable for the application 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 19103:2015, Geographic information — Conceptual schema language
ISO 19110:2016, Geographic information — Methodology for feature cataloguing
ISO 19115-1:2014, Geographic information — Metadata — Part 1: Fundamentals
ISO 19131:2007, Geographic information — Data product specifications
ISO 19135-1:2015, Geographic information — Procedures for item registration — Part 1: Fundamentals
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1.1
compound registry
registry (3.1.20) containing multiple registers (3.1.19) that share the same item classes (3.1.17) and
coordinated management of a common characteristic
Note 1 to entry: The common characteristic may be a shared namespace for the assignment of names and/or codes.
3.1.2
data product
data set or data set series that conforms to a data product specification (3.1.3)
[SOURCE: ISO 19131:2007, 4.6]
© ISO 2020 – All rights reserved 1
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oSIST prEN ISO 19126:2020
ISO/DIS 19126:2020(E)
3.1.3
data product specification
detailed description of a data set or data set series together with additional information that will enable
it to be created, supplied to and used by another party
[SOURCE: ISO 19131:2007, definition 4.7]
3.1.4
data type
specification of a value domain (3.1.22) with operations allowed on values in this domain
[SOURCE: ISO 19103:2015, definition 4.14]
3.1.5
feature
abstraction of real world phenomena
Note 1 to entry: A feature may occur as a type or an instance. In this International Standard, feature type is
meant unless otherwise specified.
Note 2 to entry: This International Standard does not address real world phenomena directly; it addresses only
their abstractions (feature concepts and feature types) and feature instances (data collected to represent a
feature in conformance with a specified feature type).
[SOURCE: ISO 19101-1:2014, definition 4.11]
EXAMPLE The phenomenon named “Eiffel Tower” may be classified with other similar phenomena into a
feature type named “tower”.
3.1.6
feature association
relationship that links instances of one feature (3.1.5) type with instances of the same or a different
feature type
Note 1 to entry: A feature association may occur as a type or an instance. In this International Standard, feature
association type is meant unless otherwise specified.
[SOURCE: ISO 19110:2016, definition 3.3]
3.1.7
feature association concept
concept that may be specified in detail as one or more
...
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