SIST EN ISO 19126:2010

Geographic information - Feature concept dictionaries and registers (ISO 19126:2009)

This International Standard will specify schemas for feature concept dictionaries and for the establishment and management of feature concept dictionaries as registers. This International Standard will 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 Geographic information - Procedures for registration of items of geographic information.

Geoinformation - Verzeichnisse und Register für Featurekontepte (ISO 19126:2009)

Diese Internationale Norm legt ein Schema für Featurekonzeptverzeichnisse fest, die als Register eingerichtet und verwaltet werden. Sie legt keine Schemata für Objektartenkataloge oder für die Verwaltung von Objekt¬artenkatalogen als Register fest. Da Objektartenkataloge jedoch häufig von Featurekonzeptverzeichnissen abgeleitet sind, wird in dieser Internationalen Norm eine Schema für ein hierarchisches Register von Feature¬konzeptverzeichnissen und Objektartenkatalogen festgelegt. Diese Register entsprechen ISO 19135.

Information géographique - Dictionnaires de concepts de caractéristiques et registres (ISO 19126:2009)

L'ISO 19126:2009 spécifie un schéma pour les dictionnaires de concepts de caractéristiques à établir et à gérer comme des registres. Elle ne spécifie pas de schémas pour les catalogues de caractéristiques ou pour leur gestion comme des registres. Toutefois, compte tenu que les catalogues de caractéristiques sont souvent dérivés des dictionnaires de concepts de caractéristiques, l'ISO 19126:2009 ne spécifie pas un schéma pour un registre hiérarchique de dictionnaires de concepts de caractéristiques et de catalogues de caractéristiques. Ces registres sont conformes à l'ISO 19135.

Geografske informacije - Slovarji in registri konceptov o pojavih (ISO 19126:2009)

Ta mednarodni standard opredeljuje shemo za slovarje konceptov o pojavih, ki bodo vzpostavljeni in upravljani kot registri. Ne opredeljuje shem za kataloge pojavov ali za upravljanje katalogov pojavov kot registrov. Vendar ker katalogi pojavov pogosto izhajajo iz slovarjev konceptov o pojavih, ta mednarodni standard vseeno opredeljuje shemo za hierarhično organiziran register slovarjev konceptov o pojavih in katalogov o pojavih. Ti registri so v skladu z ISO 19135.

General Information

• Status: Withdrawn
• Publication Date: 15-Dec-2009
• Withdrawal Date: 27-Jun-2021
• ICS: 01.040.07 - Natural and applied sciences (Vocabularies)
• ICS: 07.040 - Astronomy. Geodesy. Geography
• ICS: 35.240.70 - IT applications in science
• Technical Committee: GIG - Geographic information
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 21-Jun-2021
• Due Date: 14-Jul-2021
• Completion Date: 28-Jun-2021
• Ref Project: EN ISO 19126:2009 - Geographic information - Feature concept dictionaries and registers (ISO 19126:2009)

Relations

• Replaced By: SIST EN ISO 19126:2021 - Geographic information - Feature concept dictionaries and registers (ISO 19126:2021)
• Effective Date: 01-Sep-2021
• Replaced By: SIST EN ISO 19126:2021 - Geographic information - Feature concept dictionaries and registers (ISO 19126:2021)
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 19126:2010
01-januar-2010
1DGRPHãþD
oSIST ISO/DIS 19126:2009

Geografske informacije - Slovarji in registri konceptov o pojavih (ISO 19126:2009)

Geographic information - Feature concept dictionaries and registers (ISO 19126:2009)

Geoinformation - Verzeichnisse und Register für Featurekontepte (ISO 19126:2009)

Information géographique - Dictionnaires de concepts de caractéristiques et registres

(ISO 19126:2009)
Ta slovenski standard je istoveten z: EN ISO 19126:2009
ICS:
01.040.07 Matematika. Naravoslovne Mathematics. Natural
vede (Slovarji) sciences (Vocabularies)
07.040 Astronomija. Geodezija. Astronomy. Geodesy.
Geografija Geography
35.240.70 Uporabniške rešitve IT v IT applications in science
znanosti
SIST EN ISO 19126:2010 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 19126:2010
---------------------- Page: 2 ----------------------
SIST EN ISO 19126:2010
EUROPEAN STANDARD
EN ISO 19126
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2009
ICS 35.240.70
English Version
Geographic information - Feature concept dictionaries and
registers (ISO 19126:2009)

Information géographique - Dictionnaires de concepts de Geoinformation - Verzeichnisse und Register für

caractéristiques et registres (ISO 19126:2009) Featurekontepte (ISO 19126:2009)
This European Standard was approved by CEN on 24 October 2009.

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 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 Management Centre has the same status as the

official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,

Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 19126:2009: E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 19126:2010
EN ISO 19126:2009 (E)
Contents Page

Foreword ..............................................................................................................................................................3

---------------------- Page: 4 ----------------------
SIST EN ISO 19126:2010
EN ISO 19126:2009 (E)
Foreword

This document (EN ISO 19126:2009) 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 NEN.

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 May 2010, and conflicting national standards shall be withdrawn at the

latest by May 2010.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.

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, Cyprus, Czech

Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,

Sweden, Switzerland and the United Kingdom.
Endorsement notice

The text of ISO 19126:2009 has been approved by CEN as a EN ISO 19126:2009 without any modification.

---------------------- Page: 5 ----------------------
SIST EN ISO 19126:2010
---------------------- Page: 6 ----------------------
SIST EN ISO 19126:2010
INTERNATIONAL ISO
STANDARD 19126
First edition
2009-11-01
Geographic information — Feature
concept dictionaries and registers
Information géographique — Dictionnaires de concepts de
caractéristiques et registres
Reference number
ISO 19126:2009(E)
ISO 2009
---------------------- Page: 7 ----------------------
SIST EN ISO 19126:2010
ISO 19126:2009(E)
PDF disclaimer

This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but

shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In

downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat

accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.

Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation

parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In

the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.

COPYRIGHT PROTECTED DOCUMENT
© ISO 2009

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,

electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or

ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2009 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 19126:2010
ISO 19126:2009(E)
Contents Page

Foreword .............................................................................................................................................................v

Introduction........................................................................................................................................................vi

1 Scope......................................................................................................................................................1

2 Conformance .........................................................................................................................................1

2.1 Introduction............................................................................................................................................1

2.2 Conformance for a feature concept dictionary ..................................................................................1

2.3 Conformance for a register of feature concept dictionaries and/or feature catalogues ...............1

3 Normative references............................................................................................................................2

4 Terms, definitions and abbreviations..................................................................................................2

4.1 Terms and definitions ...........................................................................................................................2

4.2 Abbreviations.........................................................................................................................................5

5 Concepts ................................................................................................................................................5

5.1 Introduction............................................................................................................................................5

5.2 Feature concept dictionary...................................................................................................................6

5.3 Registers ................................................................................................................................................6

5.4 Feature concept dictionary register ....................................................................................................8

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 ..............................................................................................................................................10

6 Feature concept dictionary schema ..................................................................................................10

6.1 Introduction..........................................................................................................................................10

6.2 CD_FeatureConceptDictionary ..........................................................................................................11

6.3 CD_Scope.............................................................................................................................................12

6.4 CD_Concept .........................................................................................................................................13

6.5 CD_ConceptRelationship ...................................................................................................................15

6.6 CD_ConceptRelationshipType...........................................................................................................15

6.7 CD_FeatureConcept ............................................................................................................................15

6.8 CD_FeaturePropertyConcept .............................................................................................................16

6.9 CD_FeatureAttributeConcept.............................................................................................................16

6.10 CD_NominalValueConcept .................................................................................................................17

6.11 CD_FeatureAssociationConcept .......................................................................................................18

6.12 CD_FeatureRoleConcept ....................................................................................................................19

6.13 CD_FeatureOperationConcept...........................................................................................................19

7 Management of feature concept dictionaries as registers..............................................................20

7.1 Introduction..........................................................................................................................................20

7.2 Item class for feature concepts .........................................................................................................20

7.3 Item class for feature attribute concepts..........................................................................................20

7.4 Item class for nominal value concepts .............................................................................................21

7.5 Item class for feature association concepts.....................................................................................21

7.6 Item class for feature operation concepts........................................................................................21

8 Register of feature concept dictionaries and feature catalogues ..................................................22

8.1 Introduction..........................................................................................................................................22

8.2 HR_FeatureInformationSubregisterDescription ..............................................................................22

8.3 Item classes for feature information subregisters...........................................................................24

Annex A (informative) Feature concepts in dictionaries, catalogues and application schemas .............25

© ISO 2009 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 19126:2010
ISO 19126:2009(E)

Annex B (normative) Abstract test suite.........................................................................................................27

Annex C (normative) Information to be included in registration proposals ...............................................28

Annex D (informative) Example implementation of the feature concept dictionary schema as a

register..................................................................................................................................................33

Annex E (informative) UML notation ...............................................................................................................35

Bibliography ......................................................................................................................................................40

iv © ISO 2009 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 19126:2010
ISO 19126:2009(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.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

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.

ISO 19126 was prepared by Technical Committee ISO/TC 211, Geographic information/Geomatics.

© ISO 2009 – All rights reserved v
---------------------- Page: 11 ----------------------
SIST EN ISO 19126:2010
ISO 19126:2009(E)
Introduction

This International Standard specifies a schema for geographic feature concept dictionaries managed as

registers. As described in ISO 19101, 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 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 conformant register schemas.

ISO 19135 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.

The Digital Geographic Information Working Group (DGIWG) community feature concept dictionary and

register is described as an example implementation of this International Standard.

vi © ISO 2009 – All rights reserved
---------------------- Page: 12 ----------------------
SIST EN ISO 19126:2010
INTERNATIONAL STANDARD ISO 19126:2009(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 catalogue 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.

2 Conformance
2.1 Introduction

To conform to this International Standard, all of the conditions specified for at least one of the two

conformance classes described below shall be satisfied.
2.2 Conformance for a feature concept dictionary

Any feature concept dictionary that claims conformance to this International Standard shall satisfy all of the

conditions specified in the following abstract test suites:
a) ISO 19135, A.1, for general conformance to ISO 19135, and
b) B.2 of this International Standard.

A feature concept dictionary register established by ISO/TC 211 shall in addition satisfy all of the conditions

specified in the ISO 19135 abstract test suite for registers established by ISO/TC 211 (ISO 19135, A.3).

2.3 Conformance for a register of feature concept dictionaries and/or feature catalogues

Any register of feature concept dictionaries and/or feature catalogues that claims conformance to this

International Standard shall satisfy all of the conditions specified in the following abstract test suites:

a) ISO 19135, A.1, for general conformance to ISO 19135,
b) ISO 19135, A.2 for conformance to ISO 19135 as a hierarchical register, and
c) B.3 of this International Standard.

A register of feature concept dictionaries and/or feature catalogues established by ISO/TC 211 shall in

addition satisfy all of the conditions specified in the ISO 19135 abstract test suite for registers established by

ISO/TC 211 (ISO 19135, A.3).
© ISO 2009 – All rights reserved 1
---------------------- Page: 13 ----------------------
SIST EN ISO 19126:2010
ISO 19126:2009(E)
3 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/TS 19103:2005, Geographic information — Conceptual schema language
ISO 19110:2005, Geographic information — Methodology for feature cataloguing
ISO 19115:2003, Geographic information — Metadata
ISO 19135:2005, Geographic information — Procedures for item registration
4 Terms, definitions and abbreviations
4.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
4.1.1
compound registry

registry containing multiple registers that share the same item classes and coordinated management of a

common characteristic

NOTE The common characteristic may be a shared namespace for the assignment of names and/or codes.

4.1.2
data product
dataset or dataset series that conforms to a data product specification
[ISO 19131:2007, definition 4.6]
4.1.3
data product specification

detailed description of a dataset or dataset series together with additional information that will enable it to be

created, supplied to and used by another party
[ISO 19131:2007, definition 4.7]
4.1.4
data type
specification of a value domain with operations allowed on values in this domain
[ISO/TS 19103:2005, definition 4.1.5]
4.1.5
feature
abstraction of real world phenomena
[ISO 19101:2002, definition 4.11]

EXAMPLE The phenomenon named “Eiffel Tower” may be classified with other similar phenomena into a feature

type named “tower”.

NOTE 1 A feature may occur as a type or an instance. In this International Standard, feature type is meant unless

otherwise specified.

NOTE 2 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).
2 © ISO 2009 – All rights reserved
---------------------- Page: 14 ----------------------
SIST EN ISO 19126:2010
ISO 19126:2009(E)
4.1.6
feature association

relationship that links instances of one feature type with instances of the same or a different feature type

[ISO 19110:2005, definition 4.2]

NOTE A feature association may occur as a type or an instance. In this International Standard, feature association

type is meant unless otherwise specified.
4.1.7
feature association concept
concept that may be specified in detail as one or more feature association types

EXAMPLE A “supports” feature association concept describes a relationship between real world phenomena such

as “highways” and “bridges” where the role of one feature is that it is supported-by the other feature (whose role is

supporter-of).
4.1.8
feature attribute
characteristic of a feature
[ISO 19101:2002, definition 4.12]

EXAMPLE 1 A feature attribute named “colour” may have an attribute value “green” which belongs to the data type

“text”.

EXAMPLE 2 A feature attribute named “length” may have an attribute value “82,4” which belongs to the data type

“real”.

NOTE 1 A feature attribute may occur as a type or an instance. In this International Standard, feature attribute type is

meant unless otherwise specified.

NOTE 2 A feature attribute has a name, a data type and a value domain associated to it. A feature attribute for a

feature instance also has an attribute value taken from the value domain.
4.1.9
feature attribute concept
concept that may be specified in detail as one or more feature attribute types

EXAMPLE A “height” feature attribute concept describes length in the vertical direction as a characteristic that may

be shared by real world phenomena such as “human”, “tree” and “building.”
4.1.10
feature catalogue

catalogue containing definitions and descriptions of the feature types, feature attributes and feature

relationships occurring in one or more sets of geographic data, together with any feature operations that may

be applied
[ISO 19101:2002, definition 4.13]
4.1.11
feature concept
concept that may be specified in detail as one or more feature types

EXAMPLE The feature concept “road” may be used to specify several different feature types, each with a different set

of properties appropriate for a particular application. For a travel planning application, it might have a limited set of attributes

such as name, route number, location and number of lanes, while for a maintenance application it might have an extensive

set of attributes detailing the structure and composition of each of the layers of material for which it is composed.

4.1.12
feature concept dictionary

dictionary that contains definitions of, and related descriptive information about, concepts that may be

specified in detail in a feature catalogue
© ISO 2009 – All rights reserved 3
---------------------- Page: 15 ----------------------
SIST EN ISO 19126:2010
ISO 19126:2009(E)
4.1.13
feature operation
operation that every instance of a feature type may perform
[ISO 19110:2005, definition 4.5]

EXAMPLE A feature operation upon a “dam” is to raise the dam. The results of this operation are to raise the height

of the “dam” and the level of water in a “reservoir”.

NOTE The values of feature attributes of feature instances are affected by feature operations.

4.1.14
feature operation concept
concept that may be specified in detail as one or more feature operation types

EXAMPLE A “traffic flow” operation might return the number of persons or vehicles expected to move on or through

some kind of transportation feature during a period of time specified as input to the operation.

4.1.15
hierarchical register

structured set of registers for a domain of register items, composed of a principal register and a set of

subregisters
[ISO 19135:2005, definition 4.1.4]

EXAMPLE ISO 6523 is associated with a hierarchical register. The principal register contains organization identifier

schemes and each subregister contains a set of organization identifiers that comply with a single organization identifier

scheme.
4.1.16
identifier

linguistically independent sequence of characters capable of uniquely and permanently identifying that with

which it is associated
[ISO 19135:2005, definition 4.1.5]
4.1.17
item class
set of items with common properties
[ISO 19135:2005, definition 4.1.6]

NOTE 1 Class is used in this context to refer to a set of instances, not the concept abstracted from that set of instances.

NOTE 2 To avoid potential ambiguity in this International Standard, the expression “register item class” is used.

4.1.18
nominal value
name of an object, type, or category

NOTE Many feature attributes take nominal rather than numerical values. The value domain of such an attribute is

usually specified as an enumeration or a code list.

EXAMPLE “Deciduous needle leaf” is a nominal value that identifies a vegetation type.

4.1.19
register

set of files containing identifiers assigned to items with descriptions of the associated items

[ISO 19135:2005, definition 4.1.9]
4 © ISO 2009 – All rights reserved
---------------------- Page: 16 ----------------------
SIST EN ISO 19126:2010
ISO 19126:2009(E)
4.1.20
registry
information system on which a register is maintained
[ISO 19135:2005, definition 4.1.13]
4.1.21
subregister

part of hierarchical register that contains items from a partition of a domain of information

[ISO 19135:2005, definition 4.1.17]
4.1.22
value domain
set of accepted values
[ISO/TS 19103:2005, definition 4.1.15]
4.2 Abbreviations
DGIWG Digital Geospatial Information Working Group
DFDD DGIWG Feature Data Dictionary
IEC International Electrotechnical Commission
IHO International Hydrographic Organization
TC Technical Committee
UML Unified Modeling Language
5 Concepts
5.1 Introduction

A feature concept dictionary describes concepts that may be used to characterize real world phenomena.

Feature types and feature property types may then be specified using these concepts and documented in a

feature catalogue. This International Standard specifies a feature concept dictionary schema (5.2 and

Clause 6).

ISO 19135 specifies procedures to be followed in preparing and maintaining registers of items of geographic

information. Such registers may be used to support discovery of, access to, and use of the contents of feature

concept dictionaries and feature catalogues. This International Standard specifies a schema for feature

concept dictionaries as registers and information to be included i
...