1. Metadata and OAI DLESE OAI Workshop April 29-30, 2002 Katy Ginger (ginger@dpc.ucar.edu) Presentation available at: http://www.dlese.org/Metadata/conf_present/index.htm http://www.dlese.org/Metadata/conf_present/index.htm

2. DLESE OAI April 29-30, 20022 Presentation Topics Architectures DLESE Architecture NSDL Architecture: View 1 NSDL Architecture: View 2 NSDL Metadata Overview NSDL Metadata Repository Formats Harvest into NSDL Metadata Repository NSDL’s Metadata Repository NSDL Item Metadata NSDL Collection Metadata Metadata and OAI Methods for Transporting Metadata Records via OAI DLESE OAI Software DLESE as Service Provider Discovery in DLESE with Harvested DLESE-IMS Records DLESE as Data Provider DLESE-IMS Metadata Collection Developers as Data Providers to NSDL Crosswalks to Dublin Core Acronyms in this Presentation Open Discussion

3. DLESE OAI April 29-30, 20023 DLESE Architecture Metadata Repository Collections DLESE Portal Search & Discovery Direct Entry OAI Resources Services: (e.g. What’s New) NSDL OAI Library Users

4. DLESE OAI April 29-30, 20024 NSDL Architecture: View 1 Metadata Repository Collections Library Portals Search & Discovery Service Library Users Gathering Direct Entry OAI Drawings based on Cornell JCDL article Resources

5. DLESE OAI April 29-30, 20025 NSDL Architecture: View 2 ADEPT Collection Registry Local Collection with ADEPT Middleware The local collections can “talk” to each other using ADEPT middleware.

6. DLESE OAI April 29-30, 20026 NSDL Metadata Repository Formats NSDL native metadata: Dublin Core Dublin Core + Ed LTSC (IMS) ADL (SCORM) MARC CSDGM (FGDC) GILS EAD Normalized metadata: qualified Dublin Core + audience Metadata Repository Stores native & normalized metadata in XML

7. DLESE OAI April 29-30, 20027 Harvest into NSDL Metadata Repository Metadata Repository Front Porch crosswalk, preprocess as necessary AdminGather WWW Item Metadata Collection Metadata OAI FTP https http Drawings based on Cornell JCDL article Collection Metadata Item Metadata

8. DLESE OAI April 29-30, 20028 NSDL’s Metadata Repository Collection Metadata Metadata Repository Link Metadata Item Metadata Collection Item: individual objects Collection: static, editorially managed aggregation Link/Aggregation: relationship records (collection/item collection/collection) Drawings based on Cornell JCDL article

9. DLESE OAI April 29-30, 20029 NSDL Item Metadata See Handout: Quick Table of NSDL Metadata Elements Normalized: Provide qualified DC content Example of Qualified DC.Format: DC.Format.Extent: 123,456 bytes DC.Format.Medium: text/html

10. DLESE OAI April 29-30, 200210 NSDL Collection Metadata See Handout: NSDL Collection Record Submission Form Submit directly Unqualified Dublin Core

11. DLESE OAI April 29-30, 200211 Methods for Transporting Metadata Records via OAI OAI-namespace Registered: Uses unqualified DC as the metadata format Metadata uses XML schemas (the OAI DC one) Namespace identifier registered with OAI Non-registered: Use any metadata format Metadata uses XML schemas (comment out DTD lines or don’t make validation references) No OAI registration, but maybe registration with potential trading partners like DLESE

12. DLESE OAI April 29-30, 200212 DLESE OAI Software Transports metadata records in Unqualified DC format DLESE-IMS format Any metadata format Available on SourceForge as version 1.2 Uses OAI Protocol version 1.1

13. DLESE OAI April 29-30, 200213 DLESE As Service Provider DLESE-IMS: Harvest and discover now Simple DC: Harvest now; discover in late Fall 2002 Advantages of being harvested by DLESE: Allows collections to be discoverable without the collection provider having to create a local discovery system

14. DLESE OAI April 29-30, 200214 Discovery in DLESE with Harvested DLESE-IMS Records As a recognized (branded) collection: Follows DLESE Collection Accession Policy Additional search capabilities (by icon brand) As individual records: (no icon brand): Records are not part of a recognized collection Still register collection name & label with DLESE Collection must meet DLESE Scope Policy

15. DLESE OAI April 29-30, 200215 DLESE as Data Provider DLESE-IMS: Being provided now Simple DC: Begin providing by fall 2002 perhaps summer 2002

16. DLESE OAI April 29-30, 200216 DLESE-IMS Metadata Metadata record at: (see handout) http://www.dlese.org/Metadata/records/DLESE- 000-000-000-036.xml http://www.dlese.org/Metadata/records/DLESE- 000-000-000-036.xml Required metadata: (see handout) http://www.dlese.org/Metadata/main/levels.htm Can use the DCS (DLESE Catalog System) to create DLESE-IMS metadata records

17. DLESE OAI April 29-30, 200217 Collection Developers as Data Providers to NSDL Use DLESE OAI software v. 1.2 (uses OAI Protocol v. 1.1) NSDL will be using OAI Protocol v. 2.0 June 1 DLESE OAI software will be upgraded August 2002 to use OAI Protocol v. 2.0 Contact to set a harvest schedule: NSDL: Susan Jesuroga (jesuroga@ucar.edu)jesuroga@ucar.edu DLESE: John Weatherly (jweather@ucar.edu)

18. DLESE OAI April 29-30, 200218 Crosswalks to Dublin Core DLESE: Crosswalk for DLESE-IMS to DC is under development using XSLT NSDL: will help collection groups crosswalk their metadata to DC You: Best if you map/crosswalk your own and we can discuss that now

19. DLESE OAI April 29-30, 200219 Open Discussion Topics OAI questions DLESE-IMS Dublin Core Crosswalks and XSLT Controlled vocabularies NSDL questions

20. DLESE OAI April 29-30, 200220 Acronyms in this Presentation DLESE: Digital Library for Earth System Education OAI: Open Archives Initiative LTSC (IMS): Global Learning Consortium (IMS) and the IEEE Learning Technology Standards Committee IEEE: Institute of Electrical and Electronics Engineers, Inc. Committee, Learning Object Metadata ADL (SCORM): Advanced Distributed Learning (Sharable Content Objects Reference Model) MARC: Machine Readable Cataloging GILS: Global Information Locator Service EAD: Encoded Archival Description XML: eXentsible Markup Language DC: Dublin Core NSDL: National Science Digital Library ADEPT: Alexandria Digital Earth Prototype DTD: Document Type Definition CSDGM (FGDC): Content Standard for Digital Geospatial Metadata (Federal Geographic Data Committee) JCDL: Joint Conference on Digital Libraries