SIST ISO 19155-2:2020

Geographic information -- Place Identifier (PI) architecture -- Part 2: Place Identifier (PI) linking

ISO 19155-2:2017 defines the following three mechanisms for linking Place Identifiers (PIs) (see ISO 19155) to features or objects existing in other encodings:
- Id attribute of a GML object (gml:id) as defined in ISO 19136;
- Universally Unique Identifier (UUID) as defined in IETF RFC 4122;
- Uniform Resource Locator (URL) as defined in IETF RFC 1738.
These PI linking mechanisms are enabled using xlink:href as defined in W3C XML Linking Language (XLink).
While the identifiers of these features or objects can sometimes identify a place, within the scope of this document, the identifiers of features or objects existing in other encoding domains are referred to conceptually as other identifiers.
This document further defines that when PIs are encoded, as specified in ISO 19155, using the Geography Markup Language (GML) (ISO 19136), they are linked using gml:id to other GML encoded features. The details of encoding GML instances using gml:id are specified in a normative annex.
Additional normative annexes define encodings for linking Place Identifiers to other identifiers using UUID and URL and present examples for their use.
ISO 19155-2:2017 is applicable to location-based services, linked open data, robotic assisted services and other application domains that require a relationship between PIs and objects in either the real or virtual world.
ISO 19155-2:2017 is not about creating a registry of Place Identifiers linked to specific features or objects, and support of linking mechanisms other than gml:id, UUID, and URL is out of the scope of this document.

Information géographique -- Architecture d'identifiants de lieu (IL) -- Partie 2: Liaison didentifiants de lieu (IL)

Geografske informacije - Arhitektura lokacijskih identifikatorjev - 2. del: Povezovalni lokacijski identifikator

Ta dokument določa naslednje tri mehanizme za povezovanje lokacijskih identifikatorjev (PI) (glej ISO 19155) za funkcije ali objekte, ki obstajajo v drugih šifriranjih:
– atribut ID za objekt GML (gml:id), kot je opredeljen v standardu ISO 19136;
– globalni enolični identifikator (UUID), kot je opredeljen v standardu IETF RFC 4122;
– spletni naslov (URL), kot je opredeljen v standardu IETF RFC 1738.
Ti mehanizmi povezovanja lokacijskih identifikatorjev so omogočeni z uporabo povezave xlink: href, kot je opredeljena v povezovalnem jeziku W3C XML (XLink). Medtem ko lahko identifikatorji teh funkcij ali objektov včasih identificirajo lokacijo, se na področju uporabe tega dokumenta identifikatorji funkcij ali objektov, ki obstajajo v drugih domenah šifriranja, konceptualno obravnavajo kot drugi identifikatorji. Ta dokument nadalje določa naslednje: ko so lokacijski identifikatorji šifrirani, kot je določeno v standardu ISO 19155, z uporabo zemljepisnega označevalnega jezika (GML) (ISO 19136), se z drugimi šifriranimi funkcijami GML povezujejo na podlagi identifikatorja gml:id. Podrobnosti primerkov šifriranja GML z uporabo identifikatorja gml:id so opredeljene v normativnem dodatku. Dodatne normativni dodatki opredeljujejo šifriranja za povezovanje lokacijskih identifikatorjev z drugimi identifikatorji z uporabo identifikatorjev UUID in URL ter navajajo primere za njihovo uporabo. Ta dokument se uporablja za lokacijske storitve, povezane z odprtimi podatki, robotskimi pomožnimi storitvami in drugimi domenami uporabe, ki zahtevajo razmerje med lokacijskimi identifikatorji in objekti v resničnem ali virtualnem svetu. Ta dokument ne obravnava ustvarjanja registra lokacijskih identifikatorjev, povezanih z določilnimi funkcijami ali objekti, podpora za povezovalne mehanizme, ki niso gml:id, UUID in URL, pa je zunaj področja uporabe tega dokumenta.

General Information

• Status: Published
• Public Enquiry End Date: 30-Dec-2016
• Publication Date: 08-Dec-2019
• ICS: 07.040 - Astronomy. Geodesy. Geography
• ICS: 35.240.70 - IT applications in science
• Technical Committee: GIG - Geographic information
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 26-Nov-2019
• Due Date: 31-Jan-2020
• Completion Date: 09-Dec-2019
• Ref Project: ISO 19155-2:2017 - Geographic information — Place Identifier (PI) architecture — Part 2: Place Identifier (PI) linking

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2020
Geografske informacije - Arhitektura lokacijskih identifikatorjev - 2. del:
Povezovalni lokacijski identifikator
Geographic information -- Place Identifier (PI) architecture -- Part 2: Place Identifier (PI)
linking
Information géographique -- Architecture d'identifiants de lieu (IL) -- Partie 2: Liaison
didentifiants de lieu (IL)
Ta slovenski standard je istoveten z: ISO 19155-2:2017
ICS:
07.040 Astronomija. Geodezija. Astronomy. Geodesy.
Geografija Geography
35.240.70 Uporabniške rešitve IT v IT applications in science
znanosti
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 19155-2
First edition
2017-08
Geographic information — Place
Identifier (PI) architecture —
Part 2:
Place Identifier (PI) linking
Information géographique — Architecture d’identifiants de lieu (IL) —
Partie 2: Liaison d’identifiants de lieu (IL)
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2017 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Abbreviated terms . 2
4.1 Abbreviated terms . 2
4.2 UML Notation . 3
4.3 Backward compatibility . 3
5 Conformance . 3
5.1 General . 3
5.2 Linking mechanism: gml:id . 3
5.3 Linking mechanism: UUID . 3
5.4 Linking mechanism: URL . 3
6 Place Identifier (PI) concept . 4
6.1 General . 4
6.2 PI structure. 4
7 PI linking . 4
7.1 Overview . 4
7.2 PI linking directionality . 5
7.3 PI linking model . 7
8 PI linking mechanisms . 7
8.1 Overview . 7
8.2 Linking mechanism: gml:id . 8
8.2.1 Overview . 8
8.2.2 Linking from a PI . 8
8.2.3 Linking to a PI . 8
8.2.4 Instance examples using gml:id . 8
8.3 Linking mechanism: UUID . 9
8.4 Linking mechanism: URL . 9
Annex A (normative) Abstract test suite .10
Annex B (normative) Encoding using gml:id to link with GML .11
Annex C (normative) Encoding using gml:id to link with GML application schemas .16
Annex D (normative) Encoding using UUID for linking .19
Annex E (normative) Encoding using URL for linking .21
Annex F (informative) Use case examples .22
Annex G (informative) RDF examples of linking PIs .27
Bibliography .34
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: w w w . i s o .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 211, Geographic information/Geomatics.
A list of all parts in the ISO 19155 series can be found on the ISO website.
iv © ISO 2017 – All rights reserved

Introduction
The Place Identifier (PI) architecture (ISO 19155) defined the conceptual model of a place and
specified normative encodings, for Place Identifiers, not specific to any type of geographic feature. In
this document, three mechanisms are presented that define how Place Identifiers can be linked with
features or objects in other encodings. Even though the identifiers of those features or objects may not
specifically be a place, they may be referred to conceptually as “other identifiers.”
Figure 1 depicts the abstractions of linking mechanisms among feature/object encoding rules.
a) Without the use of a Place Identifier b) With the use of a Place Identifier
Key
encoding rules
linkages
Figure 1 — Linkages with other encoding rules
The linking mechanisms presented in this document are based on accepted information technology
for object identification and reference using gml:id, UUID, or URL. By using these linking mechanisms
with the rules defined here, and according to the type of encoding rule being linked to, Place Identifiers
can more uniformly be related to features and objects — other identifiers — in other encodings.
This extends the functionality of those other identifiers, in different encodings, by linking with Place
Identifiers encoded in GML.
Existing PI data can complement a range of other encodings through the use of the linking mechanisms
defined in this document.
For example, a group of Place Identifiers representing stores in a shopping mall can be associated with
the specific locations inside the shopping mall represented by a GML data set.
INTERNATIONAL STANDARD ISO 19155-2:2017(E)
Geographic information — Place Identifier (PI)
architecture —
Part 2:
Place Identifier (PI) linking
1 Scope
This document defines the following three mechanisms for linking Place Identifiers (PIs) (see ISO 19155)
to features or objects existing in other encodings:
— Id attribute of a GML object (gml:id) as defined in ISO 19136;
— Universally Unique Identifier (UUID) as defined in IETF RFC 4122;
— Uniform Resource Locator (URL) as defined in IETF RFC 1738.
These PI linking mechanisms are enabled using xlink: href as defined in W3C XML Linking Language
(XLink).
While the identifiers of these features or objects can sometimes identify a place, within the scope of
this document, the identifiers of features or objects existing in other encoding domains are referred to
conceptually as other identifiers.
This document further defines that when PIs are encoded, as specified in ISO 19155, using the
Geography Markup Language (GML) (ISO 19136), they are linked using gml:id to other GML encoded
features. The details of encoding GML instances using gml:id are specified in a normative annex.
Additional normative annexes define encodings for linking
...

INTERNATIONAL ISO
STANDARD 19155-2
First edition
2017-08
Geographic information — Place
Identifier (PI) architecture —
Part 2:
Place Identifier (PI) linking
Information géographique — Architecture d’identifiants de lieu (IL) —
Partie 2: Liaison d’identifiants de lieu (IL)
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2017 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Abbreviated terms . 2
4.1 Abbreviated terms . 2
4.2 UML Notation . 3
4.3 Backward compatibility . 3
5 Conformance . 3
5.1 General . 3
5.2 Linking mechanism: gml:id . 3
5.3 Linking mechanism: UUID . 3
5.4 Linking mechanism: URL . 3
6 Place Identifier (PI) concept . 4
6.1 General . 4
6.2 PI structure. 4
7 PI linking . 4
7.1 Overview . 4
7.2 PI linking directionality . 5
7.3 PI linking model . 7
8 PI linking mechanisms . 7
8.1 Overview . 7
8.2 Linking mechanism: gml:id . 8
8.2.1 Overview . 8
8.2.2 Linking from a PI . 8
8.2.3 Linking to a PI . 8
8.2.4 Instance examples using gml:id . 8
8.3 Linking mechanism: UUID . 9
8.4 Linking mechanism: URL . 9
Annex A (normative) Abstract test suite .10
Annex B (normative) Encoding using gml:id to link with GML .11
Annex C (normative) Encoding using gml:id to link with GML application schemas .16
Annex D (normative) Encoding using UUID for linking .19
Annex E (normative) Encoding using URL for linking .21
Annex F (informative) Use case examples .22
Annex G (informative) RDF examples of linking PIs .27
Bibliography .34
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: w w w . i s o .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 211, Geographic information/Geomatics.
A list of all parts in the ISO 19155 series can be found on the ISO website.
iv © ISO 2017 – All rights reserved

Introduction
The Place Identifier (PI) architecture (ISO 19155) defined the conceptual model of a place and
specified normative encodings, for Place Identifiers, not specific to any type of geographic feature. In
this document, three mechanisms are presented that define how Place Identifiers can be linked with
features or objects in other encodings. Even though the identifiers of those features or objects may not
specifically be a place, they may be referred to conceptually as “other identifiers.”
Figure 1 depicts the abstractions of linking mechanisms among feature/object encoding rules.
a) Without the use of a Place Identifier b) With the use of a Place Identifier
Key
encoding rules
linkages
Figure 1 — Linkages with other encoding rules
The linking mechanisms presented in this document are based on accepted information technology
for object identification and reference using gml:id, UUID, or URL. By using these linking mechanisms
with the rules defined here, and according to the type of encoding rule being linked to, Place Identifiers
can more uniformly be related to features and objects — other identifiers — in other encodings.
This extends the functionality of those other identifiers, in different encodings, by linking with Place
Identifiers encoded in GML.
Existing PI data can complement a range of other encodings through the use of the linking mechanisms
defined in this document.
For example, a group of Place Identifiers representing stores in a shopping mall can be associated with
the specific locations inside the shopping mall represented by a GML data set.
INTERNATIONAL STANDARD ISO 19155-2:2017(E)
Geographic information — Place Identifier (PI)
architecture —
Part 2:
Place Identifier (PI) linking
1 Scope
This document defines the following three mechanisms for linking Place Identifiers (PIs) (see ISO 19155)
to features or objects existing in other encodings:
— Id attribute of a GML object (gml:id) as defined in ISO 19136;
— Universally Unique Identifier (UUID) as defined in IETF RFC 4122;
— Uniform Resource Locator (URL) as defined in IETF RFC 1738.
These PI linking mechanisms are enabled using xlink: href as defined in W3C XML Linking Language
(XLink).
While the identifiers of these features or objects can sometimes identify a place, within the scope of
this document, the identifiers of features or objects existing in other encoding domains are referred to
conceptually as other identifiers.
This document further defines that when PIs are encoded, as specified in ISO 19155, using the
Geography Markup Language (GML) (ISO 19136), they are linked using gml:id to other GML encoded
features. The details of encoding GML instances using gml:id are specified in a normative annex.
Additional normative annexes define encodings for linking Place Identifiers to other identifiers using
UUID and URL and present examples for their use.
This document is applicable to location-based services, linked open data, robotic assisted services
and other application domains that require a relationship between PIs and objects in either the real or
virtual world.
This document is not about creating a registry of Place Identifiers linked to specific features or
objects, and support of linking mechanisms other than gml:id, UUID, and URL is out of the scope of this
document.
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 19103, Geographic information — Conceptual schema language
ISO 19136:2007, Geographic information — Geography Markup Language
ISO 19155:2012, Geographic information — Place Identifier (PI) architecture
IETF, Universally U
...