Dave,
In the first figure there seems to be a slight inconsistency in
terminology. The key says that blue ovals are services. But the two
middle blue boxes are labeled as being resources. Now as I understand how
things are modeled, a resource is not a service so this is confusing.
Based on what this is trying to say, I fear that you are going to need to
expand these two ovals and label them as services. But, at the same
time, add a data resource box inside of each so that the data transfer
arrow is connected in a way that is consistent with the text.
I also realize that I must be confused about data transfer. I thought
that we were pushing the view that transfer occurs between data services
in a logical sense. But that the optimized implementation of data
transfer would inevitably connect directly to the resources inside of a
data service.
Allen
"Dave Berry"