Frederick Giasson continues
the conversation about the Web Experience Dimensions in a new post --the first of several-- that chronicles the evolution of Pingthesemanticweb.com and Talk Digger, from Interactive-Web (Web 1.0) sites to Data-Web oriented Data Spaces:
On a related front, I also came across an e-Government Data Reference Model presentation (
PPT) by
Mills Davis from the
Colab Wiki that illustrates the aforementioned Web Dimensions (even though his presentation didn't have dimensionality of the Web in mind) in one of its graphics (which I've yanked and placed into this post so that it has a URI courtesy of
ODS 
):
Notes:
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Conceptual - Data-Web (*we are starting to comprehend and use this dimension* aka Semantic Web Layer 1)
Logical Theory - To follow when we let loose the intelligent agents that enrichen the Data Web experience
Philosophy - by way of
Axiology (sometime in the future, but note, we are talking Internet time :-) )
I also stumbled across another graphic that actually provides visual delineation of the value propositions of XML (Structure) and RDF (Context):
Notes:
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Description -
XML Context -
RDF Sharing - Access Points (e.g
SPARQL,
XMLA, GData Generic Query oriented Web Service Endpoints)