[ogsa-d-wg] New version of architecture document

[Dave Berry]

I've uploaded a new version of the architecture document -
https://forge.gridforum.org/sf/docman/do/downloadDocument/projects.ogsa-
d-wg/docman.root.working_drafts/doc13621/2.

Changes:

- I've moved some generic description out of the data access section
into the introductory sections.
- I've tidied the data access section.  At least, I think it's tidier;
please could the authors take a look and tell me what I've messed up?
- I've made the discussion of policies and agreements more consistent
throughout the document.  This includes moving a list of example
policies from the federation section into section 2.
- I've tidied the glossary, removing unused items and ensuring that
certain other terms are used consistently in the text.

Note: where I've copied chunks of text from one place to another, I
switched off change tracking because such large deletions and additions
don't tell you much.  Instead, I've highlighted the text in yellow where
it now appears.

Still to do (at least):
- Add a discussion of interfaces to the data caching section.
- Ditto for the replication section.
- Revise the metadata catalog section.
- Tidy the appendix list of standards.

I'm about to go on holiday for a week, so these tasks won't get done for
a while.

Dave Berry
Deputy Director, Research & E-infrastructure Development
National e-Science Centre, 15 South College Street
Edinburgh, EH8 9AA           Tel: +44 131 651 4039