1. OCLC Online Computer Library Center OCLC’s Digital Archive – Disseminating with METS Jay Goodkin Software Engineer Digital Collection and Preservation Services

2. Today’s Presentation OCLC Digital Archive Overview Dissemination Workflow OCLC’s METS Implementation for Dissemination

3. OCLC Digital Archive - Overview Functions include: –Harvest –Ingest –Content Group Management –Rights Group Management –Viewing –Dissemination –Reports –Periodic Audits of Objects in the Archive –Frequent Backups and Disaster Prevention Dissemination Information Packages based on METS schema

4. Digital Archive Services

5. Discovery Services

6. Digital Archive Record Contains the Metadata for each Digital Object in the Archive Extension of Dublin Core Entered and Maintained using OCLC’s Connexion Service Starting Point for Most Functions in the Archive Please see http://www.oclc.org/support/documentation/digitala rchive/da_metadata_elements/ for a detailed description of our metadata elements http://www.oclc.org/support/documentation/digitala rchive/da_metadata_elements/

7. DA Record in Connexion

8. Disseminating an Object

9. Dissemination Options Original Links – Disseminate Original HTML Pages as Captured from the Web Relative Links – Disseminate a Locally Viewable Object

10. Dissemination Confirmation

11. Reports Each Object has a List of Associated Reports Harvest, Ingest and Disseminate Reports shown

12. Dissemination Report

13. Dissemination Manager

14. Inside OCLC’s DIP Supports Multiple Objects Contains all Content Files for each Object Contains one METS Manifest Contains all Object-Level METS Documents

15. WinZIP View of the DIP

16. METS Manifest Uses mptr to point to all Object-Level METS Documents included in the DIP

17. OCLC’s METS Profile Header - No extension Descriptive Metadata Section - OCLC descriptive schema http://digitalarchive.oclc.org/schemas/oclc_dm.xsd http://digitalarchive.oclc.org/schemas/oclc_dm.xsd File Section - No extension Structural Map Section - No extension Behavior Section - No extension

18. METS Profile Continued Administrative Metadata Section – MIX schema http://www.loc.gov/standards/mix/mix. xsd http://www.loc.gov/standards/mix/mix. xsd textMD schema http://dlib.nyu.edu/METS/textmd.xsd http://dlib.nyu.edu/METS/textmd.xsd OCLC provenance schema http://digitalarchive.oclc.org/schemas/o clc_prov.xsd http://digitalarchive.oclc.org/schemas/o clc_prov.xsd

19. METS Header References OCLC Extensions References Industry Standard Extensions – e.g. Mix

20. METS File Group Lists all Content Files for a given Object Points to Technical/Provenance Metadata for each File

21. TechMD Mix Example

22. ProvMD Mix Example

23. StructMap Example

24. StructMap & Web Documents Fitting Web Documents into div Structure Issues with representing Links and Offsets structLink shows which Pages link together but not where the Links occur Considered using the structure

25. Multi-Object DIP

26. Multi-Object Manifest

27. Issues with Dissemination Interoperability of OCLC’s DIP Issues with encoding large Digital Objects into a METS package Standardization of Extension Schemas Web Documents

28. Future Plans Use METS to Integrate with other Digital Repositories - -CONTENTdm - -Olive - -DSpace - -Etc. Redesign Digital Archive Storage Layer based on METS

29. Contacts at OCLC Please visit our Web site at: http://www.oclc.org/digitalarchive/ Contacts: Pam Kircher – Product Manager kircherp@oclc.org Shweta Rani – Software Developer ranis@oclc.org Jay Goodkin – Software Developer goodkinj@oclc.org

30. Questions Please see our Tutorial at: http://www.oclc.org/support/training/digitalarchive/ Questions?