OASIS XRI Data Interchange (XDI) TC

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Creating a standard format and protocol for semantic data interchange using a addressable semantic graph model serialized in JSON.


The Technical Committee was closed by OASIS TC Administration on 05 October 2020 and is no longer active. Archives of its work remain publicly accessible and are linked from this page. OASIS appreciates the efforts of all those who participated in this TC.

Table of Contents


The XDI TC has published Working Draft 02 of the XDI Core 1.0 specification. XDI Core defines the semantic graph model that adds context and addressability to the W3C RDF graph model and forms the basis for the XDI protocol. See the XDI TC wiki for more information about the XDI Graph Model and other current developments.


The purpose of the XDI TC is to define a format and protocol for semantic data interchange using a standard addressable semantic graph model serialized in JSON.

For more information, see the TC Charter and FAQ.

The TC operates under a standing rule approved 17 July 2008 under which the TC does not hold regular official meetings and conducts all business by electronic ballot only. Unofficial weekly meetings are held to enable discussion among members but no business is conducted nor actions taken at those meetings.


XDI Editors Subcommittee
This committee enables the editors of XDI specifications to collaborate efficiently.

Technical Work Produced by the Committee

External Resources

Although not produced by the OASIS XDI TC, the following information offers useful insights into its work.

OASIS Members Collaborate on 'Dataweb' Standard for Exchange of Machine-Readable Information
OASIS News, 04 Feb 2004

OASIS Members Form XRI Data Interchange (XDI) Technical Committee.
Cover Pages, 21 Jan 2004

Mailing Lists and Comments

xdi: the list used by TC members to conduct Committee work. TC membership required to post. TC members are automatically subscribed; the public may view archives.

xdi-comment: a public mail list for providing input to the OASIS XDI Technical Committee members. Send a comment or view archives.

xdi-dev: an unmoderated, public mail list that provides an open forum for developers to exchange ideas and information on implementing the XDI OASIS Standard. Subscribe or view archives.


The TC holds a weekly unofficial online meeting on Mondays from 9-10:00AM Pacific Time. See the "Schedule" on the right for details.

IRC Channel

irc://irc.freenode.net/xdi: An informal IRC channel for questions and discussions on XDI and XDI implementations.

Additional Information

The goal of XDI is to enable data from any data source to be identified, described, linked, authorized, and synchronized using a standard semantic graph model, format, and protocol, so that data sharing can become as interoperable as HTML and HTTP have made content sharing.

The XDI TC always welcomes new members. Please contact the chairs for more information or join the TC directly via the links above.

Providing Feedback: OASIS welcomes feedback on its technical activities from potential users, developers, and others to better assure the interoperability and quality of OASIS work.