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1 Metadata Elements and Domain Groups - Keith G Jeffery
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2 …. and now for something completely different….
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3 Since RDA P2: Recommendations (standards) Software services So the community can Build, maintain, develop repositories to provide researcher access Interoperate repositories in a domain Interoperate across domains A necessary recommendation is on metadata Supported by software services RDA Purpose: a personal view
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4 Since RDA P2: Recommendations (standards) Software services So the community can Build, maintain, develop better repositories to provide researcher access Interoperate repositories in a domain Interoperate across domains A necessary recommendation is on metadata Supported by software services RDA Purpose: a personal view
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5 Domain researchers and ICT support/development people asking RDA Metadata Groups for recommendations on metadata For use within their individual repository For (interoperability) use within a domain For interoperability use across domains One example is ICOS Carbon cycle and greenhouse gases Requirement
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6 Discovery Finding data, software, people (users), resources (computers, storage, instrumentation); Relevance to purpose (initial assessment) Contextualisation Appropriate for the purpose (assessment) Quality (syntax, semantics – including multilinguality) Recording activity (who did what, when, where to which) Connecting data to Software / Environment / resources Schema level (syntax, semantics – including multiliguality) Metadata Used for
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7 Metadata / other groups Plan Involves not only metadata groups but all RDA Evolved since P2 Washington DC Use cases into repository (DICIG) Standards into MSDWG directory/catalog (MSDWG MSCWG) Analyse for commonalities and differences (MIG) Propose canonical metadata ‘packages’ for ‘purposes’ (MIG) Validation of ‘packages’ (domain groups) Provision of convertors This is a resource problem! Move to standardisation of ‘packages’ (RDA)
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8 Open Data: Purposing the elements Unique Identifier (for later use including citation) Location (URL) Description Keywords (terms) Temporal coordinates Spatial coordinates Originator (organisation(s) / person(s)) Project Facility / equipment Quality Availability (licence, persistence) Provenance Citations Related publications (white or grey) Related software Schema Medium / format ©Keith G Jeffery et alCRIS14 Rome May 2014 8 discovery context detailed
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9 Many (most) of the elements are not simple single valued e.g. Originator (organisation(s) / person(s)) Many are multilingual So we need structured metadata (not flat metadata) Base entities (exist in real world) Linking entities (relationships between base entities) with role and temporal duration But Note
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10 Product (dataset) Organisati on PersonProject Publication (document) Facility Equipme nt Service Spatial coordinate s Temporal coordinate s Classificat ion Scheme Classificat ion Term Indicator Measure ment Name/Title Keywords
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11 Proposed List of Presenters (not closed!) Humanities: Bridget Almas Social Sciences: George Alter Marine: Bob Arko, Cyndy Chandler, Helen Glaves, Adam Shepherd Materials: James Warren, Chandler Becker, Ray Plante, Bob Hanisch Biodiversity: Dimitris Koureas Astronomy: Francoise Genova, Bob Hanisch Bioscience: George Alter
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12 Open Data: Purposing the elements Unique Identifier (for later use including citation) Location (URL) Description Keywords (terms) Temporal coordinates Spatial coordinates Originator (organisation(s) / person(s)) Project Facility / equipment Quality Availability (licence, persistence) Provenance Citations Related publications (white or grey) Related software Schema Medium / format ©Keith G Jeffery et alCRIS14 Rome May 2014 12
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Astronomy Ray Plante, Bob Hanisch, Francoise Genova
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14 Astronomy Resource Metadata ElementUsedDesiredStandardComments Unique Identifer Identifier IVOA Rec: IVOA Identifiers Location (URL) AccessURL RM KeywordsSubject RM Temporal coordinates Coverage.Temporal.* ?RMMulti-component value Spatial coordinates Coverage.Spatial.*?RMValue is complex description OriginatorPublisher, Creator, Contributor, Contact (with support for identifiers) Same, with better support for identifiers RM Legend: RM = IVOA Recommendation: Resource Metadata for the Virtual Observatory VOR = IVOA Recommendation: VOResource: an XML Encoding Schema for Resource Metadata ? = Something better is desired
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15 ElementUsedDesiredStandar d Comments ProjectPublisher, Title Publisher, Title RM Facility/ equipment Facility, Instrument Facility, Instrument RM QualityValidation Level ?RMApplied to resource metadata record, not underlying data! AvailabilityRights?RM, VORChoice: public, secure, proprietary Provenanc e ?? CitationsSource?RM Related publications Source, ReferenceURL ?RM Related software Could describe services for accessing data ?
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16 ElementUsedDesiredStandardComments SchemaCould describe table schemas IVOA Rec: Data & Services Not sure what is meant here Medium/ format Format RMNeed better way to constrain value. Other Notes: IVOA Standards found here: http://www.ivoa.net/Documents http://www.ivoa.net/Documents The IVOA RM standard uses Dublin Core as a basis; consequently, the metadata is assuming a resource-based metadata model Our resource metadata model is not exclusively data-centric: in addition to describing data collections, it is also used to describe organizations, services, registries, standards.
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Materials James Warren, Chandler Becker, Ray Plante, Bob Hanisch
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18 ElementUsedDesiredStandard Unique identifiersometimesYN Location (URL)oftenYN/A DescriptionoftenYN/A KeywordsoftenYN/A Temporal coordsMaybeAs optional fieldunknown Spatial coordsMaybe (redefined?)As optional fieldunknown OriginatoroftenYN ProjectoftenYN Facility / equipmentyesYN QualitysometimesYN Availability (license, persistence) sometimesYN ProvenancesometimesYN CitationsoftenYNone known Related pubsoftenYNone known Related softwareoftenYN SchemasometimesYN Medium / formatsometimesYN (except things like file formats)
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Social Sciences George Alter
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20 Spreadsheet RDA-DDI elements_SI_v3.xlsx RDA-DDI elements_SI_v3.xlsx
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Bioscience George Alter
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22 Spreadsheet RDA-bioCADDIE elements.xlsx RDA-bioCADDIE elements.xlsx
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