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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">hi Thomas,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">Just to share some experience that we have had at the UK Data Archive. One of our partner organizations, from where we harvester data, went through a redesign/redevelopment
of its applications, and as a consequence changed not only their OIA identifiers but links for OAI calls, as as well.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">This gave us significant problems, including data consistance. As changing identifiers data become completely
<a href="http://www.merriam-webster.com/dictionary/inconsistent"><span style="color:windowtext;text-decoration:none">inconsistent</span></a>.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">Therefore, as a suggestion, if I understood you right. If changing identifers is essential for you, do it in partnership with organziations/institutions you exchange data.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif"">one workaround, would be to write a wrapper which would mimic the behavior of your old OAI, hence mapping the old dentifiers to the new ones. You would expose the this wrrapper
to institutions that already query your OAI <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#365F91">Dr. Sergio Viademonte.</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#365F91"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#365F91">Systems and Applications.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#365F91"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#365F91">UK
<b>DATA ARCHIVE</b><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#365F91">WIVENHOE PARK<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#365F91">COLCHESTER<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#365F91">ESSEX, CO4 3SQ<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#365F91"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#365F91">T</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#365F91"> +44(0)1206 874434<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#365F91">E</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#365F91">
<a href="mailto:jmpayne@essex.ac.uk"><span style="color:#365F91;text-decoration:none">sviade@essex.ac.uk</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#365F91">W</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#365F91">
<a href="http://www.data-archive.ac.uk"><span style="color:#365F91">www.data-archive.ac.uk</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><span lang="EN-US">-----Original Message-----<br>
From: oai-implementers-bounces@openarchives.org [mailto:oai-implementers-bounces@openarchives.org] On Behalf Of Fischer, Thomas<br>
Sent: 06 December 2011 15:21<br>
To: oai-implementers@openarchives.org<br>
Subject: [OAI-implementers] Change of identifiers</span><o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Hello,<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">I am wondering if there is a standard way to change OAI identifiers.<o:p></o:p></p>
<p class="MsoPlainText">For example, we might restructure our collection, or will have to split some items that were under one identifier into several ones. I could even imagine something like "throw away everything from this set from this OAI Service Provider
and collect everything anew".<o:p></o:p></p>
<p class="MsoPlainText">Is there a way to communicate this to my OAI clients?<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Best regards<o:p></o:p></p>
<p class="MsoPlainText">Thomas Fischer<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">--<o:p></o:p></p>
<p class="MsoPlainText">Dr. Thomas Fischer<o:p></o:p></p>
<p class="MsoPlainText">Research and Development Department (RDD)<o:p></o:p></p>
<p class="MsoPlainText">Göttingen State and University Library<o:p></o:p></p>
<p class="MsoPlainText">Georg-August-Universität Göttingen<o:p></o:p></p>
<p class="MsoPlainText">37073 Goettingen<o:p></o:p></p>
<p class="MsoPlainText">Germany<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">http://www.sub.uni-goettingen.de/<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">_______________________________________________<o:p></o:p></p>
<p class="MsoPlainText">OAI-implementers mailing list<o:p></o:p></p>
<p class="MsoPlainText">List information, archives, preferences and to unsubscribe:<o:p></o:p></p>
<p class="MsoPlainText">http://www.openarchives.org/mailman/listinfo/oai-implementers<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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