1. 2/22/2016J Ammerman1 Open Archives Initiative What is it? What’s it good for?

2. 2/22/2016J Ammerman2 History  E-print Repositories (archives) Self-archiving by authors Problems:  Multiple search interfaces  Lack of interoperability, particularly for sharing metadata

3. 2/22/2016J Ammerman3 Two Approaches  Federated Searching Z39.50 searches across multiple repositories  √Create a single database to search Harvest metadata from multiple repositories Index and make searchable

4. 2/22/2016J Ammerman4 Development of OAI-PMH*

5. 2/22/2016J Ammerman5 Seven Key Definitions*  Harvester: client application issuing OAI-PMH requests  Repository: network accessible server, able to process OAI-PMH requests correctly  Resource: object the metadata is "about", nature of resources is not defined in the OAI-PMH – resources may be digital or non-digital  Item: component of an repository from which metadata about a resource can be disseminated; has an unique identifier  Record: metadata in a specific metadata format  Identifier: unique key for an item in a repository  Set: optional construct for grouping items in a repository

6. 2/22/2016J Ammerman6 Example*:

7. 2/22/2016J Ammerman7 Harvesting  HTML requests Identify ListMetadataFormats ListSets ListIdentifiers ListRecords GetRecord  XML response

8. 2/22/2016J Ammerman8 Harvesting Examples:  http://digilib.bu.edu/dspace-oai/request?verb=Identify http://digilib.bu.edu/dspace-oai/request?verb=Identify  http://digilib.bu.edu/dspace- oai/request?verb=ListMetadataFormats http://digilib.bu.edu/dspace- oai/request?verb=ListMetadataFormats  http://digilib.bu.edu/dspace-oai/request?verb=ListSets http://digilib.bu.edu/dspace-oai/request?verb=ListSets  http://digilib.bu.edu/dspace- oai/request?verb=ListIdentifiers&metadataPrefix=oai_dc http://digilib.bu.edu/dspace- oai/request?verb=ListIdentifiers&metadataPrefix=oai_dc  http://digilib.bu.edu/dspace- oai/request?verb=ListRecords&metadataPrefix=oai_dc http://digilib.bu.edu/dspace- oai/request?verb=ListRecords&metadataPrefix=oai_dc  http://digilib.bu.edu/dspace- oai/request?verb=GetRecord&metadataPrefix=oai_dc&id entifier=oai:digilib.bu.edu:2144/56 http://digilib.bu.edu/dspace- oai/request?verb=GetRecord&metadataPrefix=oai_dc&id entifier=oai:digilib.bu.edu:2144/56

9. 2/22/2016J Ammerman9 Harvesters  Theology Library: http://digilib.bu.edu/harvester/  Oaister http://www.oaister.org

10. 2/22/2016J Ammerman10 Resources  Open Archives Initiative Web Site www.openarchives.org  Open Archives Forum online tutorial www.oaforum.org/tutorial/index.php  OAI Repository Explorer http://www.purl.org/NET/oai_explorer  The Open Archives Initiative (and Why Theology Libraries Should Pay Attention) http://hdl.handle.net/2144/165

11. 2/22/2016J Ammerman11 Notes  * Material taken from the Open Archives Forum online Tutorial