It is interesting to compare Fielding's dissertation 
with its claim for the novelty of REST with the earlier 
work on Dexter.   Identity as intrinsic property 
(the global namespace assertion) vs idenity as a derivable 
property based on function comes up often.

"In addition to the data model, Dexter also specifies a set of operations on this data model
. The resolver function is responsible for resolving a component's unique ID given a compone
nt specification. This indirect addressing is used to cope with dynamic changes of component
 IDs, i.e., when components are edited. In the simplest case the component specification is 
the component ID, in which case the resolver function is the identity function. The componen
t's ID is then fed to the component accessor function, which is responsible for mapping that
 ID into the data object assigned that ID. Furthermore, there are functions for determining 
the interconnectivity of the network by LinksTo and LinksToAnchor operations. The first reso
lves all links to a given component whereas the latter resolves all links referring to a giv
en anchor within a component. "

http://www.dbai.tuwien.ac.at/staff/herzog/thesis/node25.html

Whether one model is more complete or just the another model in different 
terms and explanations would be an interesting thesis for some one.

len

-----Original Message-----
From: Mark Baker [mailto:distobj@[...].org]

Anything-goes RPC is basically the null style because it defines no
constraints on component interaction.  I assume that's why it didn't
get its own subsection in section 3.  OORPC at least defines the
constraint that components are objects with identity.

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