1. OAI-PMH Tools Open Source or other linsences den Haag 13.01.2009

2. OAI-PMH Tools  UMProvider  University of Michigan  Perl  MySql, can take many  Simple datamodel  Store metadata XML as blob or varchar  Must store oai_dc, can store any  No crosswalk  Sets  Incremental harvesting (Resumption tokens)  Deleted records

3. OAI-PMH Tools  Celestial (OAIA)  Aggregator  University of Southampton (known for Eprints)  Perl  MySql  Simple datamodel  Metadata XML as blob  Mirroring DPs  Expose metadata for one or many harvested DPs

4. OAI-PMH Tools  Content systems, also DP  No harvester, but can preserve metadata from other DPs  Eprints, University of Southampton, Perl  DSpace, MIT and HP, Java  Fedora, University of Virginia and Cornell University, Java  Others  Content systems, also Aggregator  GreenStone, University of Waikato, NZ and UNESCO, Perl  And  PSNC's Software for metadata aggregation, Poland  DRIVER

5. OAI-PMH Tools  Fedora  Content system and DP  Java  PostgreSql, can take many  Extensive datamodel with versioning  Stores metadata like data  No harvester, can ingest metadata from other DPs  Properitary ingest XML format (Foxml)  One XML file per record  Can preserve Identifier  Can take Provenance

6. OAI-PMH Tools  UMHarvester  University of Michigan  Perl  XML files  Other providers or harvesters  Made in Java, Perl and PHP  Open Archive Initiative holds a list of OAI-PMH Tools