| RE: [higgins-dev] Telecon to discuss alternatives to Node |
|
Jim, I should have
explained. The diagram reflects some proposed updates to the model, not what’s
in v1.0 of the data model. I’ve been working on a series of changes,
improvements to the model as part of the HOWL update. As part of this when we
moved away from using RDF reification, this simplification became clear:
complex values can now be Nodes or BlankNodes. If it is a Node and if/when we
move over to the updated model IContext.getNode(<someNodID>) should
return a complex value. A BlankNode is a node without a NodeID. If the complex
value is a BlankNode, then it cannot be found using IContext.getNode (which
gets us back to where we are with complex values in v1.0). -Paul From: Ok,
either I'm confused now, or IdAS is not representing things as you describe
them, Paul. In IdAS, a complex attribute is not a node. Otherwise
someone would be able to get that node using
IContext.getNode(<someNodeID>). I know I may be using screwed up
logic to come to this understanding of what you're saying. Let me know if
I am. Jim Although
Entity was the winner of the vote, it was decided at the To try to
get to closure, I’ve created: http://doodle.ch/7sfxpr6hvu29wnys to
pick a good time on Wednesday to discuss this. One more
thing... Nodes
don’t just represent people and their interconnections in the social graph.
Nodes (along with Attributes) are the building blocks for representing everything : People,
Groups, Events, Documents, Postal Addresses in a Context. Speaking
of which, here’s an example of a Node representing some partial aspect of a
Person Entity that has an attribute “hasAddress” whose value is
a Node representing a postal address. When the value of an attribute is a Node,
we call this a “complex” (as opposed to a literal) value. Literal
values are drawn as squares.
[If you’re
familiar with RDF you’ll see that a If, after
the discussion, we all think we really are seeing the issues the same way, then
we’ll settle on Entity as the Node replacement, as it was the most popular term. -Paul I did
think of one other word too: “item”. |
