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Developing Metadata Frameworks for Earth System Education

Developing Metadata Frameworks for Earth System Education. NSDL 2003 Annual Meeting October 14, 2003 Katy Ginger and Karon Kelly DLESE Program Center. Metadata Development Overview. What is DLESE? Design principles Evolution of metadata frameworks Reflections. What is DLESE?.

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Developing Metadata Frameworks for Earth System Education

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  1. Developing Metadata Frameworks for Earth System Education NSDL 2003 Annual Meeting October 14, 2003 Katy Ginger and Karon Kelly DLESE Program Center

  2. Metadata Development Overview • What is DLESE? • Design principles • Evolution of metadata frameworks • Reflections

  3. What is DLESE? • A community-led effort funded by NSF • A place to find quality resources about the Earth System • A community center for anyone interested in learning or teaching about the Earth • Geoscience node to NSDL

  4. Key Design Principles • User input central to every stage of library development • Distributed development (community, data, collections, evaluation) • Users as contributors • Community-based governance

  5. V 3.0 V 2.0 V 1.0 DLESE Versions Georeferencing & Data Thematic collections Georeferenced discovery Spatial & temporal Earth system events Data Metadata extensions Describing for discovery Linking data with tools Third party-generated Large-scale data collections Community Teaching & Learning Center Multiple review mechanisms Outreach & Diversity Summative Evaluation Enhanced Educational Features Reviewed collections Educational discovery services AAAS Benchmarks Nat’l Science Standards Geography standards Earth system vocabulary Community Community Center Community review Outreach & Diversity Formative evaluations DPC products and processes Collections Library use Operational Library Quality collection 1000 recommended resources Teacher-friendly discovery Grade level Educational resource type Community Governance Working Groups Evaluation plan 2001 2002 2003 2004 2005 2006

  6. Why Metadata? 1998-1999 • Facilitate discovery • Using criteria - resource type, grade level & standards • For non-textual objects - geoscience images/data • Across multiple audiences - vocabularies mapped to serve novice to experts • Track rights information • Support annotation of objects

  7. Which Metadata Standard? • Characteristics of collections • Community needs • Phasing of library/collection development • Development stage of standards

  8. 1999-2000 DLESE’s Initial Metadata Path: IMS • XML support • Extensible to use own fields • Mappable to Dublin Core • Educational metadata • Administrative metadata • Classification/annotation metadata sections

  9. 2000-2002 Evolution to DLESE-IMS • Streamline new field additions desired by the community • Accommodate more detailed geospatial and temporal coverage • Manage semantic differences resulting from interpretation and formatting • Control when major version changes occur

  10. 2002-2003 Development of ADN Framework • Partnership of ADL - DLESE - NASA • Better temporal & geospatial fields • Accommodate online and physical objects • Enforce required metadata & controlled vocabularies • Be OAI compliant - move from XML DTD to XML schema • Differentiate intended audience (e.g. ‘tool for’ and ‘beneficiary’ fields)

  11. 2003 Annotation Framework • Outside the object metadata • Based on NSDL proposed framework • Added DLESE specific concepts • Gatekeeper to DLESE Reviewed Collection • Control user ability to add or read comments • Annotations as links or actual text

  12. 2003 Collection Framework • Organize collections and sub-collections • Provide overviews of collections to users • Contain technical data about collections for harvesting • Track accessioning process

  13. Summary of DLESE Frameworks • ADN – online and physical educational resources • Annotation - reviews & comments • Collection - collection characteristics • News - time sensitive announcements • SMS - AAAS benchmarks and strand maps

  14. DLESE in NSDL • Most DLESE collections transferred as individual collections in NSDL • DLESE completes the collection records and acts as the point of contact • Transformations using XSLT to NSDL-DC as OAI sets

  15. Looking to the Future • Defined versions and user expectations • State education standards • Earth system perspective • Data and tools • Metadata extraction

  16. Reflections • Best practices and quality assurance • Support for legacy collections in non standard formats • Be prepared to transform data • Collection development goals – scope and selectivity and investment in metadata

  17. www.dlese.org/Metadata Katy Ginger ginger@ucar.edur Karon Kelly kkelly@ucar.edu

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