Metadata Frameworks

1
Metadata Frameworks

• Fall 2003

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Metadata Frameworks

• ADN - for online/offline resources
• DLESE-IMS - for online resources
• Annotation - resource reviews, comments
• Collection - collection characteristics
• News-Opps - announcements
• Design - Venetian Blind with chameleon
  namespaces
• Overall Challenge - Jan 2004 metadata workshop -
  whole ball of wax per Mike Mayhew

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ADN records

• Web-based resources where resources are
• Modules, lesson plans, activities, etc.
• Datasets (remote sensed, in-situ, model)
• Guides, text, visuals, imagery, etc.
• Strong data-typing with enforced required fields
• Has educational, technical, geospatial, temporal,
  relations, right, cataloger, creator, general
  categories
• Challenge - no direct meta generation support

4
DLESE-IMS records

• No data-typing
• Required metadata not enforced
• Same ADN categories just less info in each
  category
• Geospatial and temporal are completely different
  than ADN (causes problem records for ADN)
• Has metadata generation support

5
Annotation records

• Are the gatekeeper to the Reviewed Collection
• Are the gatekeeper as to whether library users
  can read or contribute reviews
• Can exist without ADN records
• Only 1 annotation type per record
• Annotations are in the record or a URL sends
  library user to a new site for the annotation
• Strong data-typing with enforced required fields
• Challenge - no direct meta generation support

6
Collection records (1)

• Overall collection characteristics (title,
  descr.)
• Contains DPC collection key and metadata format
  (how to track collections through DPC)
• Indicates how a collection arrives at the DPC
• Is the collection OAI harvestable the OAI info
• Is the collection generated at the DPC
• Is the collection emailed, ftped or what
• Moderate data-typing with enforced required
  metadata

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Collection records (2)

• Indicates if/how collections can be redistributed
• Info about item-level catalog record s
• Indicates super/sub/associated collections
• Can indicate ADL buckets for a collection
• Captures the additional info needed for NSDL
• Tracks accessioning and alignment with DLESE
  collection policies per requirement of the
  Collections Accessioning Taskforce

8
Collection records (3)

• Challenge - not sure if framework has all needed
  information
• Challenge - to produce valid records requires
  both DPC staff and a collection builder to create
  record
• Challenge - need to incorporate into other DLESE
  systems (DDS, histograms, OAI)
• Challenge - no metadata generation support

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News and Opps

• Allows for different announcement like grants,
  conf. wrkshps, interns. and start/stop,
  post/archive dates (non-standard)
• Has metadata generation support
• No vocabs or data typing except in GUI
• No longer valid records
• Mixes presentation with data (html, special chars
  issues)
• Challenge - per Karon, core services involvement
  need better discovery and framework revamp?

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Dependencies and Versioning (1)

• All frameworks are independent even though some
  have same fields (good or bad???)
• All controlled vocabularies are individual
  schemas so that they can be plugged into any
  framework (namespaces are hidden)
• Collection, ADN Anno are versioned in CVS

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Dependencies and Versioning (2)

• Collection, ADN Anno records validate at schema
  locations on the metadata website through their
  overarching wrapper schema
• Metadata/adn-item/0.6.50/record.xsd
• Metadata/collection/0.1.01/collection.xsd
• Metadata/annotation/0.1.01/annotation.xsd
• New framework versions are issued when
• a tag is changed
• a vocabulary is changed (add/delete)
• or a new or modified field causes a structure
  change

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Dependencies and Versioning (3)

• Challenge - the schemas enforce lots so they
  have lost some plug-n-play the records are less
  flexible in coping with change
• Challenge - if give up some enforcement, records
  are more flexible when changes occur but data is
  more suspect (this philosophy needs to work
  closely with a UI because the UI would have to
  pick up some of the data enforcement)--- Probably
  not good for ADN but worth high consideration for
  News Opps.

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Current Coll Formats (20 with 14 in DDS)
Native Format Collections
DLESE-IMS (5) dcc, dwel, sercnagt, serceet, sercstrtpt
ADN (7) edmall, eserev, avc, comet, ceis, adl, evaltlkt
Annotation (4) dwelanno, eseanno, jesse, crs
Collection (3) collect, serc, essec
News-opps (1) news
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Future Coll Formats (15) (Oct-Dec 2003)
Native Format Collections
DLESE-IMS (1) esig
ADN (9-10) with 5000-7000 globe, 3 scd, visearth, curl, indent, earthobs, svs
Annotation (1-2) Teaching tips?, indent
Collection (2) scd, globe
News-opps