[OAI-implementers] Requesting a part of a record possible with
Thu, 22 Jan 2004 14:41:01 +0000
Joachim Wackerow wrote:
> The size of DDI files reach often 500-1000 KB. The description of a
> social survey consists often in several hundred questions/variables
> and in an extensive general study description.
Today OAI-PMH is successfully transporting millions of (albeit small)
records, which is GBs of XML data. A possible refinement of your system
would be to provide oai_dc records for your DDI records, using
<identifier> to point to the full record. I wouldn't have a problem with
serving or downloading 1000s of multi-megabyte files from an HTTP
server, but if they were embedded into a CGI XML response it would be
very slow and cumbersome.
Putting your DDI XML records onto an XSLT-aware Web server would also
allow you to construct XSLT's to perform the kind of partial-record
retrieval you are looking at.
All the best,