KD008 Interaction

* KD 008
3. Interaction
"""Communication between agents over a network about resources involves  
URIs, messages, and data."""
This sentence, and in fact the paragraph, is a bit obscure. Maybe  
something on the line of:
	When two agents (piece of software) communicates
	about a resource, they exchange a message which
	includes data and which is identified by an URI.
Metadatas are data. It's just a kind of data, and data are always  
metadata of something else. I'm not sure to explicit the three levels  
(data <- metadata <- metadata) you have given is useful or if you do,  
explain in more detailed context.
                                        Be seeing you,
                                          norm

-- 
Norman Walsh <ndw@nwalsh.com> | Syllables govern the world.--John Selden
http://nwalsh.com/            |