Difference between revisions of "UDI"

Revision as of 23:50, 8 June 2008

This page describes the concept of UDI as used in the Context Data Model 1.1.

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 * A [[UDI]] is a kind of URI
 * [[ContextId]] and [[EntityId]] [[Attribute]]s are [[UDI]]s.
-* Two broad classes of [[UDI]]s will be supported in Higgins 1.1:
+* For more information see: http://parity.com/udi
-*# OpenID URIs that resolve to an XRDS document (OpenID 2.0 only)
-*# HTTP URIs or XRIs that resolve to an XRDS document containing a Higgins Service Endpoint. This endpoint holds the necessary metadata to access Higgins [[Context]]s and [[Entity | Entities]] using a variety of protocols.
-*# Semantic Web Linked Data HTTP Cool URIs (probably only the '303' redirect variant)
-* Some UDIs are global —they can be resolved to an object from anywhere on the internet
-** Objects identified with global UDIs can be interconnected together to form a global, distributed object graph called the [[HGG]]
-* Other UDIs are local — they can only be resolved within a LAN or perhaps on the local machine
-** Objects identified by local UDIs cannot be a part of the Global Graph
 [[Category:Higgins Data Model]]