DAML-S and SOAP

Hi All

I am currently conducting some research on web services vis-à-vis the
semantic web.
I visited the site http://www.daml.ri.cmu.edu/ont/DAML-S/grounding/ were
there is an initial proposal regarding the grounding. There is also listed a
grounding.daml version authored by David Buttler. I know that these are not
a final draft but just initial proposals; nonetheless I am a bit perplexed
about any connection that these two documents might have.

In the proposal (SampleOntology1.ps), Massimo Paolucci is defining a message
structure in which several fields define several aspects of the message to
be sent, including an example where the Encoding and Content define a SOAP
message with, I suppose, DAML content defined in some weather ontology.
This I still don’t fully understand since, to my knowledge, a SOAP message
can readily have any type of content inside its body. So why not wrap the
DAML message directly in a SOAP message instead of using the message
structure?

What is also unclear to me is the way in which your daml grounding proposal
can be used with grounding.daml. Or are they meant to be two complementary
ideas?

Can you throw some light on these issues please?

Thanks for any help

Charlie