ISO 24097-1:2017

INTERNATIONAL ISO
STANDARD 24097-1
Second edition
2017-07
Intelligent transport systems — Using
web services (machine-machine
delivery) for ITS service delivery —
Part 1:
Realization of interoperable web
services
Utilisation des services du Web (livraison de machine à machine) pour
la livraison de services ITS —
Partie 1: Réalisation des services du Web interopérables
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
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ii © ISO 2017 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 2
3 Terms, definitions and abbreviated terms . 2
3.1 Terms and definitions . 2
3.2 Abbreviated terms . 3
4 Conformance . 3
5 Notation . 4
5.1 Prefixes and namespace URI used in core specification . 4
5.2 Web service syntax notation: BNF pseudo-schemas . 4
5.3 XPath 1.0 notation . 5
5.4 Notation of service provider, service consumer combination . 5
5.5 SOA stack name notation . 5
5.6 Set notation . 5
5.7 Tentative IRI expression . 5
5.8 Rnnnn (nnnn: digits integer) . 5
6 Requirements . 6
6.1 Basic concept of web services standardization . 6
6.1.1 Web services architecture . 6
6.1.2 International standard web service standardization . 7
6.2 Web service metadata . 8
6.2.1 Common requirements and recommendations for metadata . 9
7 Service description layer .11
7.1 Service description layer structure .11
7.2 Service description layer: Requirement and recommendation for interface
description sublayer .11
7.2.1 Role of WSDL .11
7.2.2 Multiple WSDL specifications .11
7.2.3 WSDL and SOAP relationship . .13
7.2.4 ITS web service interface metadata (WSDL) versioning rule .13
7.2.5 Requirement and recommendation for applying WSDL 2.0 .13
7.3 Service description layer: Requirement and recommendation for policy
description sublayer .14
7.3.1 WS-Policy role and syntax .14
7.3.2 Requirement and recommendation for policy description.17
7.4 Service description layer: Requirement and recommendation for addressing sublayer .18
8 Quality of service layer .18
8.1 Quality of service layer: Requirement and recommendation for reliable
messaging sublayer .18
8.1.1 Requirement and recommendation for reliable messaging policy description .18
8.2 Quality of service layer: Requirement and recommendation for security sublayer .20
8.3 Quality of service layer: Requirement and recommendation for transaction sublayer .20
9 Messaging layer.20
9.1 Messaging layer: Requirement and recommendation for XML messaging .20
9.1.1 Role of SOAP.20
9.1.2 SOAP Structure .21
9.1.3 SOAP 1.2 relationship to WSDL 1.2 .21
9.1.4 SOAP message transmission optimization (MTOM) policy.21
10 Service publication/discovery layer .21
10.1 Service publication/discovery layer: requirement and recommendation for
universal description, discovery, and integration .21
10.1.1 Role of UDDI .21
10.1.2 UDDI components .22
10.1.3 Public UDDI .22
10.1.4 Requirement and recommendation for service registration stack .24
Annex A (normative) Principles and evolution of WSDL from version 1.1 to 2.0 .25
Annex B (informative) WSDL syntax .36
Bibliography .39
iv © ISO 2017 – All rights reserved

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
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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 ISO/TC 204, Intelligent transport systems.
This second edition cancels and replaces the first edition (ISO 24097-1:2009), which has been technically
revised.
A list of all the parts in the ISO 24097- series, can be found on the ISO website.
Introduction
ITS services have been evolving from single functional and limited area specific services, to a broad
range of services in which many systems co-operate to provide effective and efficient service provision
across a wide area. Today, ITS services are required to communicate not just with other parts of
the same ITS service, but between different ITS services, and even with non-ITS services or a user’s
system directly, e.g. traffic management systems, route guidance systems, homeland security systems,
environment protection systems, private freight management systems, etc.
These systems (even those limited to ITS services) are usually deployed in a heterogeneous environment
that may use different hardware, operating systems (OS), middleware, and/or development languages.
This creates a challenge to realize system coordination across the organizations in a way that is flexible
and quick, at a reasonable cost. Web services (WS) are a recent methodology that overcomes these
difficulties. Using web service technology for ITS services can significantly simplify and reduce the cost
of internet based service provision, which may well affect the speed at which ITS services are deployed.
The World Wide Web Consortium (W3C) defines web services as follows:
“A web service is a software system designed to support interoperable machine-to-machine interaction
over a network. It has an interface described in a machine-processable format (specifically WS
...