[OAI-implementers] Harvesters

[lagoze@cs.cornell.edu]

Hi Lesli,

You might also contact Kurt Maly and Xiaoming Liu at Old Dominion about
ARC.

Carl

> -----Original Message-----
> From: Lesli [mailto:lesli@aztec.lib.utk.edu]
> Sent: Monday, April 02, 2001 1:37 PM
> To: Tim Brody
> Cc: oai-implementers@oaisrv.nsdl.cornell.edu
> Subject: Re: [OAI-implementers] Harvesters
> 
> 
> Are there any other OAI harvesters out there besides the one 
> that Hussein has (or is
> harvester not the correct term for what Hussein has)?  We 
> were wondering how many
> there might be and how to check them out.
> 
> Thanks.
> Lesli Zimmerman
> Sr. Metadata Specialist
> University of Tennessee
> 
> 
> Tim Brody wrote:
> 
> > On Mon, 2 Apr 2001, herbert van de sompel wrote:
> >
> > > > >From a harvesters point of view (I don't believe there 
> are many of us :-), I
> > > > would prefer to have "oai_dc" because that tells me 
> explicitly what data I
> > > > can expect to find, rather than having to remember what 
> I requested (as far
> > > > as I can tell it is the one part that makes an isolated 
> OAI response
> > > > stateful, a real pain if one is using caching or other systems).
> > > >
> > >
> > > The metadataPrefix is only signficiant within the realm 
> of a certain
> > > repository.  The only exception is the metadataPrefix 
> oai_dc, which --
> > > by convention -- refers to metadata expressed in 
> unqualified Dublin Core
> > > in all repositories.
> >
> > > * what REALLY tells you which metadata you receive is the 
> namespace:
> > > xmlns="http://purl.org/dc/elements/1.1/" .  that is a 
> global identifier
> > > of the format.
> >
> > Agreed, I guess when using OAI responses I need to delve 
> into the XML
> > schema identification to be correct ...
> >
> > > * in addition to that, you do not have to "keep" the 
> format you asked
> > > for: all response are self-contained, meaning you can 
> tell from the
> > > original protocol request -- which is the content of the 
> requestURL
> > > element -- what you asked for.  this has been a 
> deliberate choice, since
> > > we are indeed talking about robots harvesting metadata, and some
> > > software processing the harvested metadata at a later stage.
> >
> > I have thought of this, but the protocol specifically discards this
> > information when using resumptionTokens (I, personally, 
> don't like the
> > idea of exclusive variables vs the repository doing 
> something intelligent
> > when asked something stupid - introduces state information 
> that isn't
> > naive to implement on either side).
> >
> > Of course, the namespace makes this immaterial.
> >
> > Thanks for the quick response,
> > Tim.
> >
> > _______________________________________________
> > OAI-implementers mailing list
> > OAI-implementers@oaisrv.nsdl.cornell.edu
> > http://oaisrv.nsdl.cornell.edu/mailman/listinfo/oai-implementers
> 
> _______________________________________________
> OAI-implementers mailing list
> OAI-implementers@oaisrv.nsdl.cornell.edu
> http://oaisrv.nsdl.cornell.edu/mailman/listinfo/oai-implementers
>