Service Interface for Real Time Information
CEN/TS 15531 (pre/CEN/TS-OO278181 )

SIRI Schema & Documentation Downloads

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Related Standards

• Transmodel
• Ifopt
• Siri

• Trident
• VDV
• RtigXml

SIRI  uses a systematic versioning scheme.

For example the version 1.3 schema is found at

http://www.siri.org.uk/schema/1.3/siri.xsd.

To use the SIRI schema, you may either  reference the URL for the appropriate version, or use a local copy held on your own machine, which you can downloaded from this site.

Packages

 Siri uses a modular package structure, with a separate sub-schema for each main service.  Click on the image below for a detailed dependency graph. 

Namespaces

To overcome earlier  tool limitations, the original 1.0 SIRI schema used a single  chameleon namespace (http://www.siri.org.uk/.   ) for all include packages .

Subsequent version of the schema (1.2a, 1.3..) use an explicit  namespace for each siri package (http://www.siri.org.uk/siri) and respect the namespaces of other packages eg ifopt." . 

Users are recommended to use a  version of SIRI with the explicit namespaces as this now works better with tools.

Downloadable versions of SIRI XML Schema

The following recent and upcoming versions of SIRI schemas & documents may be accessed online, and also can be downloaded in the formats shown.

© Copyright CEN SIRI & 2004 - 2009
Page last updated: 2009/09/11