ISO 14817-3:2017

INTERNATIONAL ISO
STANDARD 14817-3
First edition
2017-08
Intelligent transport systems — ITS
data dictionaries —
Part 3:
Object identifier assignments for ITS
data concepts
Systèmes intelligents de transport — Dictionnaires de données des
ITS —
Partie 3: Affectation didentifiants d’objets pour les concepts liés aux
données des ITS
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
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ii © ISO 2017 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Conformance . 1
4.1 General . 1
4.2 Contextual name . 2
4.3 Parent object class . 2
4.4 Definition . 2
4.5 Context . 2
4.6 Data type . 2
5 Abbreviated terms . 2
6 ITS naming tree . 2
6.1 General requirements . 2
6.2 ITS arc . 3
6.2.1 General. 3
6.2.2 ITS misc arc . 3
6.2.3 Object class arcs. 6
7 Management . 8
7.1 Registering data concepts . 8
7.2 Versioning. 8
7.3 Obtaining a dictionary document arc . 8
Annex A (normative) ASN.1 module . 9
Annex B (informative) How to define data concepts with subtle variations — Frequently
asked questions .11
Bibliography .12
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
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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/d irectives).
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This document was prepared by Technical Committee ISO/TC 204, Intelligent transport systems.
A list of all parts in the ISO 14817 series can be found on the ISO website.
iv © ISO 2017 – All rights reserved

Introduction
Background
This document has been developed by ISO/TC 204 in order to provide a framework for the
documentation and registration of data that passes through system interfaces within the Intelligent
Transport Systems (ITS) domain. It is designed to maximize interoperability and facilitate information
re-use across system interfaces.
Vision statement
This International Standard envisions a harmonized approach to ITS data and interfaces to promote
maximum interoperability of data within the ITS sector by the creation and maintenance of the
Central ITS Data Concept Registry (CIDCR), which are supported by interface and application-specific
ITS data dictionaries, created and maintained in a common and interoperable form, and to ensure
the minimization of duplication by clear rules for data concept definition and data concept registry
management.
Mission statement
The mission is to develop tools that will promote a holistic, integrated approach involving vehicle
technology, infrastructure, and the road user to increase transport safety and efficiency. Specifically,
this standard defines the principles and concepts, scope, field of application, rules and procedures, and
definition and concept of operation for the CIDCR and ITS functional data dictionaries. Furthermore,
this standard also makes provision for the migration of data concepts from ITS functional data
dictionaries to the CIDCR to maximize interoperability and minimize proliferation of similar (but
inconsistently defined) data concept entries.
This International Standard defines the framework, formats, and procedures used to define information
and information exchanges within the ITS sector. The standard is designed to be used by the ITS
community at large, but should be of special interest to application developers, equipment providers,
and data concept registry managers.
ISO 14817-1 specifies a set of meta-attributes for ITS data concepts, as well as associated conventions
and schemes that enable the description, standardization and management of all exchanged ITS
data. Through consistent use of these common structures and associated conventions and schemes,
interchange of data and information among the various ITS functional subsystems via their specific
application systems can be maximized. This International Standard also supports re-use of data
elements and other data concepts across various ITS functional subsystems and their specific
application systems.
The formats and processes defined within this International Standard are consistent with
implementation(s) of the ISO ITS System Architecture defined in the ISO 14813 Standardization
deliverables, particularly ISO 14813-2 and ISO 14813-2. This does not preclude the application of
data concept registries using alternative international, regional or national system architecture
methodologies or techniques, indeed, common formats and processes will ease migration and
interoperability between such approaches.
The ITS data concepts that populate the CIDCR or data dictionary may originate from a Computer-
Aided Software Engineering (CASE) tool implementation of the ISO 14813 ITS Reference Architecture,
from International Standards for ITS, from national implementations for ITS, or from the submission
by relevant users. Data dictionary entries are not limited to those generated by object-oriented
methodologies.
Document overview
This clause provides an overview of this document. Clause 1 identifies the scope of this document.
Clause 2 specifies the conformance tests that a data concept must pass to be assigned an arc under the
“common-data” arc. Clause 3 identifies references required for proper implementation of this document.
Clause 4 defines terms used and Clause 5 lists the abbreviations. Clause 6 declares the structure of
the centralized ITS naming tree and Clause 7 identifies management structure for adding new arcs
underneath the centralized ITS naming tree.
Annex A contains the formal ASN.1 module defining all arcs defined in this document.
Annex B is informational and provides answers to frequently asked questions.
vi © ISO 2017 – All rights reserved

INTERNATIONAL STANDARD ISO 14817-3:2017(E)
Intelligent transport systems — ITS data dictionaries —
Part 3:
Object identifier assignments for ITS data concepts
1 Scope
This document specifies how to assign an object identifier to a data concept under the “its” arc of the
international object identifier tree.
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 3166-1, Codes for the representation of names of countries and their subdivision — Part 1: Country codes
ISO/IEC 8824-1, Information technology — Abstract Syntax Notation One (ASN.1) — Specification of basic
notation
ISO/IEC 9834-1, Information technology — Procedures for the operation of object identifier registration
authorities: General procedures and top arcs of the international object identifier tree — Part 1
ISO 14813-1, Intelligent transport systems — Reference model architecture(s) for the ITS sector — Part 1:
ITS service domains, service groups and services
ISO 14817-1, Intelligent transport systems — ITS central data dictionaries — Part 1: Requirements for ITS
data definitions
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 14817-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http:// www .electropedia .org/
— ISO Online browsing platform: available at http:// www .iso .org/ obp
4 Conformance
4.1 General
Prior to standardizing an arc assignment to any data concept under the joint “its” arc, the developer
of the data concept shall enter the data concept into the CIDCR so that it reaches the quality level of
“recorded” or higher. In addition, it is recommended that the following conditions be met:
NOTE ISO 14817-2 defines the “recorded” level as “Indicates that the data concept has syntactically valid
entries for all mandatory meta-attributes and passes all defined automated checks for the data concept type”.
4.2 Contextual name
Verify that the name is descriptive of the data concept being defined.
4.3 Parent object class
Verify that the parent object class properly identifies the object class that the data concept describes
when this meta-attribute is required.
4.4 Definition
Verify that the definition unambiguously describes the data concept meaning.
4.5 Context
Verify that the context properly references the correct module or dictionary document.
4.6 Data type
Verify that the data type conforms to the rules of ISO 14817-1:2015, 7.4.1.
5 Abbreviated terms
ASN.1 Abstract Syntax Notation One
CEN European Committee for Standardization
CIDCR Central ITS Data Concept Registry
IEC International Electrotechnical Commission
ISO International Organization for Standardization
ITS Intelligent Transport System(s)
ITU-T International Telecommunications Union – Telecommunications Sector
JTC Joint technical committee
OID Object identifier
SC Sub-committee
6 ITS naming tree
6.1 General requirements
The value assigned to the object identifier meta-attribute of any data concept shall be an ASN.1 OBJECT
IDENTIFIER that conforms to the rules of ISO/IEC 9834-1. It is recommended that the assigned value
be a node underneath the “its (28)” arc of
...