W3C home > Mailing lists > Public > public-webid@w3.org > November 2012

Re: Principals

From: Nathan <nathan@webr3.org>
Date: Tue, 20 Nov 2012 21:44:18 +0000
Message-ID: <50ABF9B2.2080803@webr3.org>
To: Kingsley Idehen <kidehen@openlinksw.com>
CC: "public-webid@w3.org" <public-webid@w3.org>
See Also: http://cadse.cs.fiu.edu/corba/corbasec/faq/multi-page/node52.html
Quite nicely worded, the first few lines make it's usage within the 
context of WebID and RWW very clear :)

Kingsley Idehen wrote:
> All,
> 
> More for reference purposes, since it isn't going into the WebID spec.
> 
> WebDAV Access Control Ext. Spec [1]:
> 
>       A "principal" is a distinct human or computational actor that
>       initiates access to network resources.  In this protocol, a
>       principal is an HTTP resource that represents such an actor.
> 
> Translation:
> 
> A data object that represents a human or computational actor (e.g. 
> software agent). This representation is achieved as follows:
> 
> 1. data object ID is a resource URL
> 2. data object representation is an entity relationship model based 
> description graph
> 3. the graph is comprised of attribute=value pairs that coalesce around 
> the ID (a de-referencable URI) that denotes the entity represented by 
> said data object.
> 
> Example:
> 
> 1. http://kingsley.idehen.net/dataspace/person/kidehen -- denotes a data 
> object resource
> 2. http://kingsley.idehen.net/dataspace/person/kidehen#this -- denotes 
> the real world entity that is the focal point (via attribute=value pair 
> coalescence) for the description graph.
> 
> Linked Data use the magic of de-reference to make this very cool and 
> neat since the URI denoting the real world entity resolves to a data 
> object resource that represents a description of the  real world 
> entity's description.
> 
> Links:
> 
> 1.  http://tools.ietf.org/html/rfc3744 -- WebDAV ACL extensions rfc
> 2. http://youtu.be/f-pJlnpkLp0 -- a favorite fun video about pointers 
> and dereference .
> 
Received on Tuesday, 20 November 2012 21:45:22 UTC

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