[OAI-implementers] OAI identifier resolver

[Young,Jeff]

In this case, I would recommend that the service provider create and
maintain its own OAI harvestable registry of OAI repositories that it
supports. I was able to set up my dummy registry using OAICat in minutes.
Since this registry is under the service provider's control, it is free to
assign meaningful repositoryIdentifiers to each supported repository. If the
supported repository uses oai-identifiers, then the repositoryIdentifier can
be taken from that. Otherwise, the service provider can feel free to assign
any meaningful name it wants.

Given this registry, you could then download the open-source resolver code
I'm offering and run it yourself against this registry. The basic URLs would
look like this:

http://servicesRus.com/oai/<oai-identifier>
or
http://servicesRus.com/oai/<repositoryIdentifier>/<identifier>

>From there, you can append any of the ".extension" or "?extension" modifiers
from my examples, including the "?POI" extension.

Jeff

>  -----Original Message-----
>  From: Xiaoming Liu [mailto:liu_x@lanl.gov]
>  Sent: Tuesday, October 21, 2003 12:30 PM
>  To: Adam Farquhar
>  Cc: Patrick Hochstenbach; oai-implementers@oaisrv.nsdl.cornell.edu
>  Subject: Re: [OAI-implementers] OAI identifier resolver
>  
>  
>  On Tue, 21 Oct 2003, Adam Farquhar wrote:
>  
>  > Patrick,
>  >
>  > Thanks for locating and distributing the pointer to this 
>  IETF draft.  It
>  > appears to be carefully thought through.  It would 
>  certainly be much
>  > better to leverage an existing mechanism, rather than 
>  generate a new one
>  > specifically for OAI.
>  
>  UUID uses Ethercard address and timestamp to generate unique 
>  id. It can
>  guarantee uniqueness but is not repeatable. Here we want a 
>  method which
>  generate unique id based on baseURL, and the method can be 
>  repeated by any
>  party. So I believe UUID is not appropriate for this purpose.
>  
>  xiaoming
>  
>  
>  >
>  > Regards,
>  >
>  > Adam.
>  >
>  > Patrick CH Hochstenbach wrote:
>  >
>  > >An easy way to assign unique identifiers without using a 
>  central registration
>  > >would be UUID's. See also:
>  > >
>  > >ftp://ietf.org/internet-drafts/draft-mealling-uuid-urn-01.txt
>  > >
>  > >The uuid is in the processes of becomming an urn scheme. With it's
>  > >128 bit key as one of the features it is pretty strong preventing
>  > >collisions (see my previous post).
>  > >
>  > >Patrick
>  > >
>  > >
>  > >
>  >
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