The Architecture of Identity Systems
The architecture of an identity system has a profound impact on the nature of the relationships it supports. This post categorizes the high-level architecture of identity systems, discusses the properties of each category to understand architectural influences, and explores what their respective architectures mean to their legitimacy as a basis for online life.
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IIW2005: Drummond Reed on XRIs
XRI is a syntax and resolution protocol for abstract identifiers---identifiers that are independent of the underlying network location, domain, application, or storage. It's an abstraction layer for identifiers of all types. You can use an XRI anyplace you can use a URI. An XRI can be downcast into a URI. There is also a standard way of making an XRI clickable called XRI Resolution. XRI is the product of an OASIS technical committee. In the same way that URI's unify the filename, IP address, and domain name layers into a single namespace, XRIs integrate URIs with names in the
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