ISO 14817:2002

INTERNATIONAL ISO
STANDARD 14817
First edition
2002-12-15

Transport information and control
systems — Requirements for an ITS/TICS
central Data Registry and ITS/TICS Data
Dictionaries
Systèmes d'information et de commande des transports — Exigences
pour un registre de données central ITS/TICS et pour les dictionnaires
de données ITS/TICS




Reference number
ISO 14817:2002(E)
©
ISO 2002

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ISO 14817:2002(E)
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ISO 14817:2002(E)
Contents Page
Foreword. v
Introduction . vi
0.1 Background . vi
0.2 Document overview . vii
1 Scope. 1
2 Conformance . 1
2.1 Conformance considerations . 1
2.2 Strictly conforming implementations . 2
2.3 Conforming implementations . 2
3 Normative references . 2
4 Terms and definitions. 2
5 Symbols and abbreviated terms. 5
6 Concept of operation . 6
6.1 Summary. 6
6.2 Framework . 7
6.3 Organizational roles. 8
6.4 Registration status levels. 10
6.5 Procedures . 11
6.6 Version control. 12
7 Data concepts. 12
7.1 Summary of data concepts . 12
7.2 Interface dialogue . 14
7.3 Message . 14
7.4 Data frame. 14
7.5 Object class . 14
7.6 Association. 14
7.7 Property. 15
7.8 Data element concept. 15
7.9 Value domain. 15
7.10 Data element. 15
8 Data concept meta attributes. 15
8.1 Basic meta attributes of data concepts . 15
8.2 Administrative meta attributes . 17
9 Data concept names . 18
9.1 Descriptive names . 18
9.2 Data concept descriptive name formats.18
10 Meta attribute requirements for ITS/TICS data concepts. 19
11 International relationships . 19
Annex A (informative) ITS/TICS functional operating procedures . 21
Annex B (normative) Contents of the ITS/TICS Data Registry and ITS/TICS Data Dictionaries:
Meta attribute definitions . 37
Annex C (normative) Contents of the ITS/TICS Data Registry and ITS/TICS Data Dictionaries:
Meta attribute requirements for data concepts. 51
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ISO 14817:2002(E)
Annex D (normative) Data concept names.60
Annex E (informative) Data representation in an information model .66
Annex F (informative) ASN.1 information object specification for an ITS/TICS data concept.75
Bibliography.91

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ISO 14817:2002(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 14817 was prepared by Technical Committee ISO/TC 204, Transport information and control systems.
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ISO 14817:2002(E)
Introduction
0.1 Background
This International Standard has been developed by ISO/TC 204/WG 1, Architecture, in order to provide a
framework for the documentation and registration of data that passes through system interfaces within the
Intelligent Transport System / Transport Information and Control Systems (ITS/TICS) domain.
The International Standard is designed to maximize interoperability and facilitate information reuse.
This International Standard defines the registration process for ITS/TICS. It further defines the Data Dictionary
and the Data Registry content and Data Registry management procedures.
Vision statement
This International Standard envisions common use and maximum interoperability of data within the
ITS/TICS sector by the creation and maintenance of an ITS/TICS Data Registry, supported by interface
and application specific ITS/TICS 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 Registry management.
Mission statement
The mission is to develop a standard to define the principles and concepts; scope; field of application;
rules and procedures; definition and concept of operation for a central ITS/TICS Data Registry and
ITS/TICS functional Data Dictionaries; and to make provision for the migration of data from ITS/TICS
functional Data Dictionaries to the central Registry so as to maximize interoperability and minimize
proliferation of similar (but inconsistently defined) data entries.
This International Standard defines the framework, formats, and procedures used to define information and
information exchanges within the ITS/TICS sector. The standard is designed to be used by the ITS/TICS
community at large, but should be of special interest to application developers, equipment providers, and Data
Registry managers.
This International Standard specifies a set of meta attributes for ITS/TICS Data Dictionaries, as well as
associated conventions and schemes, that enables the description, standardization and management of all
exchanged ITS/TICS data. Through consistent use of these common structures and associated conventions
and schemes, interchange of data and information among the various ITS/TICS functional subsystems via
their specific application systems can be maximized. This International Standard also supports reuse of data
elements and other data concepts across various ITS/TICS functional subsystems and their specific
application systems
The Data Registry process defined within this International Standard is consistent with implementation(s) of
the ISO ITS/TICS System Architecture defined in the ISO 14813 Standardization deliverables, particularly
ISO 14813 Parts 2 and 3. This does not preclude the application of the Data Registry using alternative
International, Regional or National System Architecture methodologies or techniques, indeed, a common Data
Registry will ease migration and interoperability between such approaches.
The ITS/TICS data concepts that populate the ITS/TICS Data Registry may originate from a Computer-Aided
Software Engineering (CASE) tool implementation of the ISO 14813 TICS 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.
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ISO 14817:2002(E)
0.2 Document overview
This clause provides an overview of this International Standard. Clause 1 identifies the scope of this
International Standard. Clause 2 identifies requirements for conformance to this International Standard.
Clause 3 identifies references required for proper implementation of this International Standard. Clause 4
defines terms used in this International Standard and Clause 5 lists the abbreviations.
The requirements for the ITS/TICS central Data Registry and ITS/TICS Data Dictionaries begin in Clause 6
with an overview of the concept of operations for the ITS/TICS Data Registry and ITS/TICS Data Dictionaries.
A framework describing the registration of different types of data concepts in the ITS/TICS Data Registry and
the registration status levels are presented.
Clause 7 identifies the fundamental ITS/TICS data concepts while Clause 8 identifies the basic and
administrative meta attributes used to document them. Clause 9 describes the naming conventions and name
abbreviation conventions used. Clause 10 states the requirements for the data concepts and the meta
attributes contained in the ITS/TICS Data Registry and ITS/TICS Data Dictionaries.
Clause 11 provides a reference model for national, regional and international relationships and summarizes
internationalization aspects associated with national and regional requirements for the ITS/TICS Data Registry
and Data Dictionary environment.
The annexes to this International Standard describe the specific details for implementing the requirements
introduced in Clauses 6 through 11. Annex A details ITS/TICS functional operating procedures for registration
and harmonization of data concepts. Annex B prescribes the detailed definitions and descriptions of the
ITS/TICS Data Registry and Data Dictionary meta attributes. Annex C prescribes the meta attribute
requirements for data concepts contained in the ITS/TICS Data Registry and ITS/TICS Data Dictionaries.
Annex D specifies the naming and name abbreviation conventions and the process for converting ITS/TICS
descriptive names to ASN.1 names. Annex E contains the rules for data representation in an information
model, along with examples. Annex F describes the ASN.1 information object specification for an ITS/TICS
data concept with examples.
The bibliography includes a list of documents related to this International Standard.

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INTERNATIONAL STANDARD ISO 14817:2002(E)

Transport information and control systems — Requirements for
an ITS/TICS central Data Registry and ITS/TICS Data
Dictionaries
1 Scope
This International Standard specifies the framework, formats, and procedures used to define information
exchanges within the Intelligent Transport System/Transport Information and Control Systems (ITS/TICS)
sector. It defines the content of the ITS/TICS central Data Registry and Data Dictionaries, the registration
process to enter data concepts into the Data Registry. Throughout the text, the Data Registry should be taken
to mean the ITS/TICS central Data Registry.
Specifically, this International Standard specifies:
 framework used to identify and define all information exchanges;
 framework used to extend standardized information exchanges to support local customizations and
combinations;
 information modelling method for defining ITS/TICS data concepts, when used;
 meta attributes used to describe, standardize and manage each of the data concepts defined within this
framework;
 requirements used to record these definitions; and
 formal procedures used to register these definitions within the Data Registry.
The Data Registry described herein supports, and is designed to include, data concepts using alternative
International, Regional or National System Architecture methodologies or techniques. A common Data
Registry will ease migration and interoperability between such approaches.
2 Conformance
2.1 Conformance considerations
This International Standard prescribes a conceptual model, but not a physical implementation. Therefore, the
meta model need not be physically implemented exactly as specified. However, it should be possible to map
unambiguously to and from the implementation and the meta model.
Regional and National Data Registries/Dictionaries have the option of adopting data concept definitions from
the ITS/TICS Data Registry/Dictionaries, but are not required to do so. However, in the case of exchanging
information internationally in application programs, claiming conformance with this or other international
Standards in ITS/TICS sector, it is a requirement to use only data concepts that have already been registered
in the ITS/TICS Data Registry.
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ISO 14817:2002(E)
2.2 Strictly conforming implementations
A strictly conforming implementation shall be a strictly conforming metadata set.
A strictly conforming implementation:
a) shall support all mandatory, optional and conditional data concept attributes (see Annex C);
b) shall not use, test, access, or probe for any extensions to data concept attributes;
c) shall not exceed limits nor minimum-maximum values specified by this International Standard; and
d) shall not interpret nor allow the production of data concept attributes that are dependent on any
unspecified, undefined, or implementation-defined behaviour.
2.3 Conforming implementations
A conforming implementation shall be a conforming metadata set.
A conforming implementation:
a) shall support all mandatory, optional and conditional data concept attributes (see Annex C);
b) as permitted by the implementation, may exceed use, test, access, or probe for extensions to data
concept attributes;
c) as permitted by the implementation, may exceed limits or minimum-maximum values specified by this
International Standard; and
d) may interpret or allow the production of data concept attributes that are dependent on implementation-
defined behaviour.
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/IEC 8824-1:1998, Information technology — Abstract Syntax Notation One (ASN.1): Specification of basic
notation
ISO/IEC 8824-2:1998, Information technology — Abstract Syntax Notation One (ASN.1): Information object
specification
ISO/IEC 9834-1:1993, Information technology — Open Systems Interconnection — Procedures for the
operation of OSI Registration Authorities: General procedures
ISO 1000:1992, SI Units and recommendations for use of their multiples and of certain other units
th
ISO/IEC Directives, Part 1, 4 Edition, 2001
4 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
NOTE Definitions of Data Registry and Data Dictionary meta attributes are given in Annex B.
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ISO 14817:2002(E)
4.1
association
data concept; structural relationship
4.2
classification scheme
scheme for the arrangement or division of objects into groups by functional area
4.3
data
representations of static or dynamic objects in a formalized manner suitable for communication, interpretation,
or processing by humans or by machines
4.4
data concept
any of a group of Data Dictionary structures defined in this International Standard (i.e. object class, property,
value domain, data element concept, data element, data frame, message, interface dialogue, association)
referring to abstractions or things in the natural world that can be identified with explicit boundaries and
meaning and whose properties and behaviour all follow the same rules
4.5
data concept instance
individual occurrence of a data concept
4.6
Data Dictionary
DD
organized and constructed (electronic data base) compilation of descriptions of data concepts that provides a
consistent means for documenting, storing and retrieving the syntactical form (i.e. representational form) and
the meaning and connotation of each data concept
4.7
data element
data concept; some single unit of information of interest (such as a fact, proposition, observation, etc.) about
some (entity) class of interest (e.g. a person, place, process, property, concept, association, state, event)
considered to be indivisible in a particular context
NOTE A data element is represented by an object class, a property of the represented object class and a value
domain.
4.8
data element concept
data concept; an expression of the inherent concept embodied in a data element without regard to the value
domain(s) by which it can be physically represented
NOTE A data element concept is represented by an object class and a property of that object class.
4.9
data frame
data concept; grouping of data elements primarily for the purpose of referring to the group with a single name,
and thereby efficiently reusing groups of data elements that commonly appear together (e.g. ASN.1
SEQUENCE, SEQUENCE OF, SET, SET OF or CHOICE) in a message specification
NOTE This data concept type may be used to specify groups of data elements for other purposes as well.
4.10
data model
description of the organization of data in a manner that reflects an information structure
NOTE See also information model.
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ISO 14817:2002(E)
4.11
Data Registry
DR
store of data, characterized in a consistent manner, as determined according to the provisions of this
International Standard, used for a specific purpose (in this case ITS/TICS)
NOTE The data registration process provides a determination of the ITS Data Dictionary items accepted into the
ITS/TICS Data Registry. The Data Registry contains not only data about data concepts in terms of their names and
representational forms but also substantial data about the semantics or meaning associated with the data concepts. A
Data Registry may contain data that assists information interchange and reuse, both from the perspective of human users
and for machine-interpretation of data concepts. The Data Registry is comprised of items only from ITS/TICS Data
Dictionaries, showing their source; however, not all ITS/TICS Data Dictionary items shall necessarily be submitted for
inclusion, or accepted, into the Data Registry.
4.12
data registrar
organizational element or an individual appointed by ISO/TC 204 to undertake the day-to-day management of
the Data Registry process
4.13
data registration process
process by which data is formally described and provided to an approved location in the Data Registry
NOTE This process is effected under the control of the ITS/TICS data registrar, in accordance with the requirements
of this International Standard.
4.14
data type
classification of the collection of letters, digits, and/or symbols used to encode values of a data element based
upon the operations that can be performed on the data element
4.15
identifier
means of designating or referring to a specific data concept instance
4.16
generalization
specialization/generalization relationship in which an object class of a specialized element (child) is
substituted for a generalized element (parent)
4.17
information model
graphical representation that logically organizes various data concepts by depicting key relationships among
the data concepts
EXAMPLE An information model might specify that a Vehicle may be described by a variety of properties, such as:
Make, Model, Year, and Vehicle Identification Number. Likewise a Collision might be described by properties such as
Time of Occurrence, Severity, and Number of Vehicles Involved. Finally, the model might depict that a Collision has a
many-to-many relationship to a Vehicle.
NOTE 1 Within the scope of this International Standard, information models are depicted using UML Class Diagrams.
NOTE 2 This International Standard uses the term information model in order to reflect the fact that relationships give
the data a context and thereby transforms data into information. Some groups use the term data model. See also data
model.
4.18
interface dialogue
data concept; collection of all the temporal sequences of messages, including variants such as multiple
responses, that are used to accomplish the services that the interface dialogue provides
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ISO 14817:2002(E)
4.19
message
data concept; grouping of data elements and/or data frames, as well as associated message metadata, that is
used to convey a complete unit of information
NOTE For the purposes of this International Standard, a message is an abstract description; it is not a specific
instance.
4.20
message instance
occurrence of a message containing the actual values for the data elements and, in some cases, data about
the message
4.21
meta
word denoting a description that is one level of abstraction above the concept being described
4.22
meta attribute
any documenting characteristic of a data concept
4.23
metadata
data that defines and describes other data
4.24
name
indexical term used by humans as a means of identifying data elements and other data concepts
4.25
object class
data concept; construct used to represent any kind of object (also referred to as an entity) within a ITS/TICS
information environment
4.26
property
data concept; documenting characteristic of an object class used to group and differentiate individual objects
4.27
semantics
meaning, including concept(s), associated with a given data concept
4.28
syntax
structure of expressions in a language and the rules governing the structure of a language
4.29
value domain
data concept; expression of a specific and explicit representation of some information about something of
interest within the ITS/TICS domain
5 Symbols and abbreviated terms
ASN.1 Abstract Syntax Notation One
ANSI American National Standards Institute
CASE Computer-Aided Software Engineering
CCC (ITS/TICS Data Registry) Change Control Committee
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ISO 14817:2002(E)
DCI Data Concept Identifier
DD Data Dictionary
DR Data Registry
ExCom (ITS/TICS Data Registry) Executive Committee
ID identification
IEC International Electrotechnical Commission
IOS Information Object Specification
ISO International Organization for Standardization
ITS Intelligent Transport System(s)
N/A not applicable
OID object identifier
OSI Open System Interconnection
TC Technical Committee
TICS Transport Information and Control System(s)
UML Unified Modeling Language
URL Uniform Resource Locator
6 Concept of operation
6.1 Summary
The scope of ITS/TICS applications covers numerous ISO/TC 204 functional areas as well as national and
regional ITS/TICS organizations, each having an established group of stakeholders. The international
integration of ITS/TICS applications is one of the major development issues, so that data defined and
gathered in one of these functional areas (e.g. traffic management, traveller information) can be applied in
another. For this type of interoperability the definition of data that can persist across different functional areas
must be standardized. The ITS/TICS
...