[DAS2] das2 diagrams, questions

[Allen Day]

Hi,

I am getting ready to do a server-side rewrite, so I took some time to
diagram out where we are from the current spec documents.  See the attached
file, particularly pages 5-6.

I have a few questions, mostly targeted at Andrew, regarding the current
HTML version of the spec on the biodas.org site.  It hasn't been updated in
about 5 months, and looks pretty out of date.

* Is the HTML document in sync with the "new_spec.txt" document in CVS?

* There is mention of a "fasta" command, and its fragment is linked from the
ToC of the genome retrievals document, but it does not appear in the
document.  Does this command exist?  My understanding from conference calls
is that the sequence/fasta/segment/dna stuff has all merged into the
"segment" response. Is this correct?

* The "property" command seems to have disappeared.  Is that correct?  Are
property keys no longer URIs?  Also the "prop-*" feature filters could be
better described, it is not clear to me if they are meant as some sort of
replacement for the property command.

This document also contains a few diagrams on pages 1-4 describing how the
writeback, block caching/flushing, and dynamic feature generation (a.k.a.
"analysis DAS") all fit together.

-Allen
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