SIST ISO 17316:2017
Information and documentation - International standard link identifier (ISLI)
Information and documentation - International standard link identifier (ISLI)
This International Standard specifies an identifier of links between entities (or their names) in the field
of information and documentation. These entities can be documents, media resources, people, or more
abstract items such as times or places.
The ISLI system identifies links between entities that are related to each other so that, for instance,
they can be rendered jointly. It does this by registering each link identifier with information (metadata)
that specifies the link. The ISLI does not change the content, ownership, right of access, or existing
identification of these entities.
This International Standard does not specify the technology used to represent the identifier or realize the
link. It enables applications to be built which use the interoperable ISLI system for the identification of links.
Information et documentation - Identification de connexion standard international (ISLI)
Informatika in dokumentacija - Mednarodni standardni identifikator povezave (ISLI)
Ta mednarodni standard določa identifikator povezav med entitetami (ali njihovimi imeni) na področju informatike in dokumentacije. Te entitete so lahko dokumenti, medijski viri, osebe ali bolj abstraktni elementi, kot so časi in kraji.
Sistem ISLI identificira povezave med sorodnimi entitetami, ki se lahko na primer
obdelujejo skupaj. To stori tako, da vsak identifikator povezave opremi z informacijami (metapodatki), ki določajo povezavo. Sistem ISLI ne spreminja vsebine, lastništva, dovoljenja za dostop ali obstoječih vrst identifikacije teh entitet.
Ta mednarodni standard ne določa tehnologije, ki se uporablja za predstavitev identifikatorja ali vzpostavitev povezave. Omogoča razvoj aplikacij, ki uporabljajo interoperabilni sistem ISLI za identifikacijo povezav.
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INTERNATIONAL ISO
STANDARD 17316
First edition
2015-05-15
Information and documentation —
International standard link
identifier (ISLI)
Information et documentation — Identification de connexion
standard international (ISLI)
Reference number
ISO 17316:2015(E)
©
ISO 2015
---------------------- Page: 1 ----------------------
ISO 17316:2015(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2015, 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. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 17316:2015(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Terms and definitions . 1
3 Link model of ISLI . 2
4 Structure and syntax of ISLI . 2
4.1 Service field . 2
4.2 Link field . 2
4.3 Check digit field . 2
4.4 ISLI representation for human reading . 3
5 Principles for allocation of ISLI . 3
5.1 Allocation of ISLI service codes . 3
5.2 Assignment of ISLI codes . 3
6 Metadata . 4
6.1 ISLI metadata . 4
6.2 Service metadata . 4
7 Administration of the ISLI system . 4
Annex A (normative) Allocation of service codes and assignment of ISLI codes .5
Annex B (normative) ISLI metadata specification . 6
Annex C (normative) Administration of the ISLI system . 8
Annex D (normative) Method for calculating the check digit of an ISLI .10
Bibliography .12
© ISO 2015 – All rights reserved iii
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ISO 17316:2015(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 meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 46, Information and documentation, Subcommittee
SC 9, Identification and description.
iv © ISO 2015 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 17316:2015(E)
Introduction
Developments in technology have already provided a reliable foundation to set up links between
resources, whether these are stored in digital or traditional form. The developments have, in particular,
reinforced the ability to link resources of different types. This allows users to experience rich media
content, such as audio files or video files, more easily. Further, they not only provide traditional users
with enriched information, but also improve accessibility of textual material to individuals who are
visually impaired and extend the capabilities of educational materials.
Technologies providing such capabilities have typically been hardware dependent or enclosed within a
particular ecosystem. To provide improved interoperability and better access to these technologies and
services, the International Standard Link Identifier (ISLI) defines connections between these resources.
The approach taken in this International Standard comes from experience in several different projects,
but it allows a general way of identifying links which enables new applications in more fields, such as
multimedia. The link built by ISLI makes resources more readily available, and thus creates more value
through their use.
© ISO 2015 – All rights reserved v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 17316:2015(E)
Information and documentation — International standard
link identifier (ISLI)
1 Scope
This International Standard specifies an identifier of links between entities (or their names) in the field
of information and documentation. These entities can be documents, media resources, people, or more
abstract items such as times or places.
The ISLI system identifies links between entities that are related to each other so that, for instance,
they can be rendered jointly. It does this by registering each link identifier with information (metadata)
that specifies the link. The ISLI does not change the content, ownership, right of access, or existing
identification of these entities.
This International Standard does not specify the technology used to represent the identifier or realize the
link. It enables applications to be built which use the interoperable ISLI system for the identification of links.
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2.1
entity
something capable of being uniquely identified
Note 1 to entry: Entities include material objects, electronic representations of content, abstract items (such as
times, places), parties (human and corporate), as well as anything else that can be identified uniquely.
Note 2 to entry: A defined fragment of an entity is itself an entity.
2.2
ISLI code
International Standard Link Identifier assigned in accordance with the specifications of this
International Standard
2.3
link
directed relationship between two entities (2.1) in the field of information and documentation
2.4
name
string of characters that identifies an entity (2.1), possibly (but not necessarily) in the form of an
identifier specified in an International Standard
2.5
registrant
party requesting the assignment of an ISLI code (2.2) to a link (2.3)
2.6
service
class of links (2.3) with a common application between typed sources (2.7) and typed targets (2.8)
2.7
source
entity (2.1) which is the origin of a link (2.3)
© ISO 2015 – All rights reserved 1
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ISO 17316:2015(E)
2.8
target
entity (2.1) which is the destination of a link (2.3)
3 Link model of ISLI
An ISLI code specifies the link between a source and a target as shown in Figure 1.
Figure 1 — Link model of ISLI
4 Structure and syntax of ISLI
An ISLI code, as shown in Table 1, comprises decimal digits in three fields, which includes
— service field,
— link field, and
— check digit field.
Table 1 — ISLI structure
Service field Link field Check digit field
six digits variable length one digit
(see 4.1) (see 4.2) (see 4.3)
4.1 Service field
The service field contains the service code, which is allocated by the registration authority.
The service code comprises six decimal digits.
4.2 Link field
The link field contains the link code, which defines the link between the source and the target. It is
assigned by the registration authority. The link code comprises decimal digits and its length is defined
for each service by the registration authority.
4.3 Check digit field
The check digit provides protection against errors.
The check digit field contains a single decimal digit calculated from the contents of the service field and
link field in accordance with Annex D.
2 © ISO 2015 – All rights reserved
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ISO 17316:2015(E)
4.4 ISLI representation for human reading
ISLI is a code intended for machine reading. When an ISLI code needs to be shown on a screen or printed,
the hyphen symbol “-” should be added to separate the fields and “ISLI” should be inserted before the
numeric code. The symbol “-” and “ISLI” do not form part of the identifier.
EXAMPLE ISLI 116063-4520086293791473426443001-9
5 Principles for allocation of ISLI
5.1 Allocation of ISLI service codes
5.1.1 An ISLI service code shall be allocated to a service by the registration authority if an application
meets the criteria that the registration authority shall publish.
5.1.2 An ISLI service code shall be allocated to one service and each service shall be allocated only one
ISLI service code.
5.1.3 An ISLI service code shall be permanently allocated to a given service and shall never be altered,
replaced, or reused, although it may be withdrawn from use for new assignments of ISLI codes.
5.1.4 Details on the allocation of ISLI service codes are contained in A.1.
5.2 Assignment of ISLI codes
5.2.1 An ISLI code shall be assigned by the registration authority on receipt of an application for a code
to be associated with a particular service.
5.2.2 An ISLI code shall not be assigned unless the registrant wishes to designate that the relevant
source and target are to be linked within the requested service.
5.2.3 Within a service, each ISLI code shall be assigned to only one link from a given source to a given
target, and each such link shall be assigned only one ISLI code.
NOTE Provided two ISLI codes are assigned in different services, they can refer to the same sources and targets.
5.2.4 The ISLI shall identify a link rather than a single entity.
5.2.5 An ISLI code may be assigned to a link where the source and/or the target is an entity whose
content changes over time, such as a webpage.
5.2.6 A link from entity A to entity B shall have a different ISLI code than a link from entity B to entity A.
5.2.7 An ISLI code shall be permanently assigned to a given link and shall never be altered, replaced, or
reused, although it may be cancelled and marked as cancelled in the register of the registration authority.
NOTE Cancellation can be required if the ISLI code was assigned in error or has become out of date.
5.2.8 In identifying sources and targets, the use of identifiers specified in ISO standards shall be preferred.
5.2.9 Details on the assignment of ISLI codes are contained in A.2.
© ISO 2015 – All rights reserved 3
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ISO 17316:2015(E)
6 Metadata
6.1 ISLI metadata
Each ISLI code shall be associated with ISLI metadata as defined in Annex B. The ISLI code and ISLI
metadata shall be included in a register operated by the registration authority.
6.2 Service metadata
Each service code shall be associated with metadata as defined in Annex B. The service code and its
metadata shall be included in a register operated by the ISLI registration authority.
7
...
SLOVENSKI STANDARD
SIST ISO 17316:2017
01-februar-2017
Informatika in dokumentacija - Mednarodni standardni identifikator povezave (ISLI)
Information and documentation - International standard link identifier (ISLI)
Information et documentation - Identification de connexion standard international (ISLI)
Ta slovenski standard je istoveten z: ISO 17316:2015
ICS:
01.140.20 Informacijske vede Information sciences
SIST ISO 17316:2017 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST ISO 17316:2017
---------------------- Page: 2 ----------------------
SIST ISO 17316:2017
INTERNATIONAL ISO
STANDARD 17316
First edition
2015-05-15
Information and documentation —
International standard link
identifier (ISLI)
Information et documentation — Identification de connexion
standard international (ISLI)
Reference number
ISO 17316:2015(E)
©
ISO 2015
---------------------- Page: 3 ----------------------
SIST ISO 17316:2017
ISO 17316:2015(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2015, 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. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved
---------------------- Page: 4 ----------------------
SIST ISO 17316:2017
ISO 17316:2015(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Terms and definitions . 1
3 Link model of ISLI . 2
4 Structure and syntax of ISLI . 2
4.1 Service field . 2
4.2 Link field . 2
4.3 Check digit field . 2
4.4 ISLI representation for human reading . 3
5 Principles for allocation of ISLI . 3
5.1 Allocation of ISLI service codes . 3
5.2 Assignment of ISLI codes . 3
6 Metadata . 4
6.1 ISLI metadata . 4
6.2 Service metadata . 4
7 Administration of the ISLI system . 4
Annex A (normative) Allocation of service codes and assignment of ISLI codes .5
Annex B (normative) ISLI metadata specification . 6
Annex C (normative) Administration of the ISLI system . 8
Annex D (normative) Method for calculating the check digit of an ISLI .10
Bibliography .12
© ISO 2015 – All rights reserved iii
---------------------- Page: 5 ----------------------
SIST ISO 17316:2017
ISO 17316:2015(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 meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 46, Information and documentation, Subcommittee
SC 9, Identification and description.
iv © ISO 2015 – All rights reserved
---------------------- Page: 6 ----------------------
SIST ISO 17316:2017
ISO 17316:2015(E)
Introduction
Developments in technology have already provided a reliable foundation to set up links between
resources, whether these are stored in digital or traditional form. The developments have, in particular,
reinforced the ability to link resources of different types. This allows users to experience rich media
content, such as audio files or video files, more easily. Further, they not only provide traditional users
with enriched information, but also improve accessibility of textual material to individuals who are
visually impaired and extend the capabilities of educational materials.
Technologies providing such capabilities have typically been hardware dependent or enclosed within a
particular ecosystem. To provide improved interoperability and better access to these technologies and
services, the International Standard Link Identifier (ISLI) defines connections between these resources.
The approach taken in this International Standard comes from experience in several different projects,
but it allows a general way of identifying links which enables new applications in more fields, such as
multimedia. The link built by ISLI makes resources more readily available, and thus creates more value
through their use.
© ISO 2015 – All rights reserved v
---------------------- Page: 7 ----------------------
SIST ISO 17316:2017
---------------------- Page: 8 ----------------------
SIST ISO 17316:2017
INTERNATIONAL STANDARD ISO 17316:2015(E)
Information and documentation — International standard
link identifier (ISLI)
1 Scope
This International Standard specifies an identifier of links between entities (or their names) in the field
of information and documentation. These entities can be documents, media resources, people, or more
abstract items such as times or places.
The ISLI system identifies links between entities that are related to each other so that, for instance,
they can be rendered jointly. It does this by registering each link identifier with information (metadata)
that specifies the link. The ISLI does not change the content, ownership, right of access, or existing
identification of these entities.
This International Standard does not specify the technology used to represent the identifier or realize the
link. It enables applications to be built which use the interoperable ISLI system for the identification of links.
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2.1
entity
something capable of being uniquely identified
Note 1 to entry: Entities include material objects, electronic representations of content, abstract items (such as
times, places), parties (human and corporate), as well as anything else that can be identified uniquely.
Note 2 to entry: A defined fragment of an entity is itself an entity.
2.2
ISLI code
International Standard Link Identifier assigned in accordance with the specifications of this
International Standard
2.3
link
directed relationship between two entities (2.1) in the field of information and documentation
2.4
name
string of characters that identifies an entity (2.1), possibly (but not necessarily) in the form of an
identifier specified in an International Standard
2.5
registrant
party requesting the assignment of an ISLI code (2.2) to a link (2.3)
2.6
service
class of links (2.3) with a common application between typed sources (2.7) and typed targets (2.8)
2.7
source
entity (2.1) which is the origin of a link (2.3)
© ISO 2015 – All rights reserved 1
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SIST ISO 17316:2017
ISO 17316:2015(E)
2.8
target
entity (2.1) which is the destination of a link (2.3)
3 Link model of ISLI
An ISLI code specifies the link between a source and a target as shown in Figure 1.
Figure 1 — Link model of ISLI
4 Structure and syntax of ISLI
An ISLI code, as shown in Table 1, comprises decimal digits in three fields, which includes
— service field,
— link field, and
— check digit field.
Table 1 — ISLI structure
Service field Link field Check digit field
six digits variable length one digit
(see 4.1) (see 4.2) (see 4.3)
4.1 Service field
The service field contains the service code, which is allocated by the registration authority.
The service code comprises six decimal digits.
4.2 Link field
The link field contains the link code, which defines the link between the source and the target. It is
assigned by the registration authority. The link code comprises decimal digits and its length is defined
for each service by the registration authority.
4.3 Check digit field
The check digit provides protection against errors.
The check digit field contains a single decimal digit calculated from the contents of the service field and
link field in accordance with Annex D.
2 © ISO 2015 – All rights reserved
---------------------- Page: 10 ----------------------
SIST ISO 17316:2017
ISO 17316:2015(E)
4.4 ISLI representation for human reading
ISLI is a code intended for machine reading. When an ISLI code needs to be shown on a screen or printed,
the hyphen symbol “-” should be added to separate the fields and “ISLI” should be inserted before the
numeric code. The symbol “-” and “ISLI” do not form part of the identifier.
EXAMPLE ISLI 116063-4520086293791473426443001-9
5 Principles for allocation of ISLI
5.1 Allocation of ISLI service codes
5.1.1 An ISLI service code shall be allocated to a service by the registration authority if an application
meets the criteria that the registration authority shall publish.
5.1.2 An ISLI service code shall be allocated to one service and each service shall be allocated only one
ISLI service code.
5.1.3 An ISLI service code shall be permanently allocated to a given service and shall never be altered,
replaced, or reused, although it may be withdrawn from use for new assignments of ISLI codes.
5.1.4 Details on the allocation of ISLI service codes are contained in A.1.
5.2 Assignment of ISLI codes
5.2.1 An ISLI code shall be assigned by the registration authority on receipt of an application for a code
to be associated with a particular service.
5.2.2 An ISLI code shall not be assigned unless the registrant wishes to designate that the relevant
source and target are to be linked within the requested service.
5.2.3 Within a service, each ISLI code shall be assigned to only one link from a given source to a given
target, and each such link shall be assigned only one ISLI code.
NOTE Provided two ISLI codes are assigned in different services, they can refer to the same sources and targets.
5.2.4 The ISLI shall identify a link rather than a single entity.
5.2.5 An ISLI code may be assigned to a link where the source and/or the target is an entity whose
content changes over time, such as a webpage.
5.2.6 A link from entity A to entity B shall have a different ISLI code than a link from entity B to entity A.
5.2.7 An ISLI code shall be permanently assigned to a given link and shall never be altered, replaced, or
reused, although it may be cancelled and marked as cancelled in the register of the registration authority.
NOTE Cancellation can be required if the ISLI code was assigned in error or has become out of date.
5.2.8 In identifying sources and targets, the use of identifiers specified in ISO standards shall be preferred.
5.2.9 Details on the assignment of ISLI codes are contained in A.2.
© ISO 2015 – All rights reserved 3
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...
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