1. OCLC Online Computer Library Center SRW & OAI Ralph LeVan OCLC Research

2. OAI Search Requirements Find a specific record Restrict the database by date Restrict the database by Set ID

3. OAI Retrieval Requirements ocm56385578 2004-09-29

4. SRW/U-OAI Profile OAI context set for search OAI Header schema for retrieval

5. OAI Context Set oai.identifier: contains arbitrary text used with the exact relation oai.datestamp: contains dates of the form yyyy-mm-dd used with the numeric relations oai.setId: contains arbitrary text used with the exact relation

6. Example Request http://localhost:8080/SRW/search/ORPub licationshttp://localhost:8080/SRW/search/ORPub lications? query=oai.datestamp > 2004-01-01& version=1.1&operation=searchRetrieve & recordSchema=http%3A%2F%2Fwww. openarchives.org%2FOAI%2F2.0%2F% 23header&maximumRecords=1&startRe cord=1

7. Example Response 693 http://www.openarchives.org/OAI/2.0/#header xml ocm56578713 2004-09-29 1 11