The XDI Graph Model
This is the home page for current links to materials documenting the XDI graph model -- the XDI data interchange model that builds upon the RDF graph model as defined by the W3C Semantic Web activity.
The XDI TC maintains a visual guide to XDI graphs called XDI Graph Patterns (PDF version, Powerpoint version). This is the easiest document to review to gain a quick understanding of the XDI graph model. The latest version is dated 2014-04-03.
A companion document, XDI Graph Statements (PDF version, Excel version), contains the XDI statements corresponding to each example in XDI Graph Patterns. NOTE: This document is currently one revision behind the XDI Graph Patterns document, and hasn't been 'symbol shifted'.
Recommended Wiki Pages
XDI ABNF - formal ABNF rules defining the XDI graph model.
XDI Serialization Formats defines the JSON serialization formats (and 2 plain text display formats) for XDI.
XDI Messages specifies the template for XDI messages.
XDI Link Contracts - how XDI does portable semantic authorization.
XDI Policy Expression - how XDI does semantic policy expression.
XDI Discovery specifies how the XDI protocol is used to discover the endpoint URI(s) associated with any XDI resource.