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Toward a Data Repository for Toward a Data Repository for Evolutionary Biology: Evolutionary Biology: <Metadata Issues> <Metadata Issues>
Jane Greenberg, Associate Professor, Director SILS/Metadata Research Center <MRC>, UNC-CHJackson Dube, Visiting Scholar, SILS/MRCRuth Monnig, Doctoral Research Assistant, SILS/MRC
OverviewOverview
1. Metadata defined
2. Role of metadata in a repository
3. Range of metadata standards– Principles and objectives– Domains– Architectural Layout
4. Issues
5. Discussion
MetadataMetadata Data about the content, quality, condition,
and other characteristics of data (FGDC Glossary, 1992)
Additional information necessary for data to be useful (Musik, 1997)
Structured, descriptive information about a resource (DCMI Glossary; Weibel, 1995)
*Resource = data = object = entity = document = data object
Metadata types and propertiesMetadata types and properties
Metadata “type” Property, etc.
*Resource/data discovery
Title, subject
Provenance Creator, source
Terms and condition metadata (intellectual use)
Access rights, manipulation rights.
Structural metadata (technical use)
Software and hardware needs
*Resource = data = object = entity = document = data object
Range of published data objectsRange of published data objects
Table, graph Dataset Research methods//procedures Agent/s: scientists/s, organizations Project Publication
Related data objects – All these levels again and more…
Range of metadata standardsRange of metadata standardsSchemes (just a few…)Schemes (just a few…) LSID TEI Header; MARC
bibliographic format, Dublin Core
EAD FGDC/CSGSM; NBII EML DDI
ODRL (Creative Commons Profile)
A Core PREMIS
CharacteristicsCharacteristics Objectives and
principles Domains
– Environment– Object type/format
Architectural Layout– Extent– Level of Complexity
Flat, hierarchical
– Granularity
Metadata continuumMetadata continuum
LSID FGDC EMLTEI Header,
MARC;
Dublin Core
EADDDI
Draft – jed, after we meet, maybe you can make pretty!
Range of metadata standardsRange of metadata standards
Data structure standardsData communication standardsData value standards
– Content representation, ontologies, authority files
Data syntax standardsData models, architectures/packaging
The Knowledge Network for Biocomplexity (KNB)The Knowledge Network for Biocomplexity (KNB)
*http://knb.ecoinformatics.org//data.html
The Knowledge Network for Biocomplexity (KNB)The Knowledge Network for Biocomplexity (KNB)
*http://knb.ecoinformatics.org//data.html
ontologies
Data structures
IssuesIssues Cost
– More metadata, more cost to produce– Less metadata, cost to users
Metadata creation– Who, when, how? (Insuring quality, timely creation)– What applications are needed?
Interoperability– What levels of interoperability do we need? With
what systems? Preservation
– How should the metadata/data be preserved and sustained
Open access– How do we ensure open access to the metadata+?
Questions for discussionQuestions for discussion
What level do you think metadata needs to be applied to facilitate data object discovery/use?
What will help or invite users? What other issues come to mind?
Why metadata?Why metadata?
Facilitate discovery of data objects Permit use – intellectual and technical Asset/object management and
preservation Security Help advance the field of evolutionary
biology
Range of published data objectsRange of published data objects
Table, graph Dataset (supplementary data, entire data set) Research methods, procedures Coverage: Temporal and spatial aspects Agent/s: scientists/s, organizations Project Publication (journal volume, issue, pagination)
Related data objects “All these levels again and more…
/ Ruth/Jed, please consider altering/or another slide/s..
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