TDWG, October 19, 2008 Giri Palanisamy, [email protected] Metadata Management – Mercury () ...
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TDWG, October 19, 2008 Giri Palanisamy, [email protected] Metadata Management – Mercury (http://mercury.ornl.gov) Current strategy and standards: – Mercury handles various metadata standards including FGDC, EML, GCMD, ISO 19115, Dublin Core – Mercury has ~ 12 partner projects, more than 60 different data sources, more than 60K content rich metadata records – Mercury receives metadata from PIs (individual) and also from other data centers (bulk harvest) Issues: – Missing critical & required fields, insufficient information – Inconsistent field values – most standards define what is required but doesn’t force the format January 10,2008, JAN 2008, 2008, 01102008,10012008,200080110,20081001 Not available, n/a, none,   (space), last year etc.. Broken links Validating a text field – Example: keywords field contains value “keywords relevant to ecology”
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Transcript of TDWG, October 19, 2008 Giri Palanisamy, [email protected] Metadata Management – Mercury () ...
TDWG, October 19, 2008 Giri Palanisamy, [email protected]
Metadata Management – Mercury (http://mercury.ornl.gov)
Current strategy and standards:– Mercury handles various metadata standards including FGDC, EML, GCMD, ISO
19115, Dublin Core– Mercury has ~ 12 partner projects, more than 60 different data sources, more
than 60K content rich metadata records– Mercury receives metadata from PIs (individual) and also from other data centers
(bulk harvest)
Issues:– Missing critical & required fields, insufficient information – Inconsistent field values – most standards define what is required but doesn’t
force the format January 10,2008, JAN 2008, 2008, 01102008,10012008,200080110,20081001 Not available, n/a, none,   (space), last year etc..
Broken links
Validating a text field – Example: keywords field contains value “keywords relevant to ecology”
TDWG, October 19, 2008 Giri Palanisamy, [email protected]
Metadata Requirement - An Initial View of Data…
Measurement
TDWG, October 19, 2008 Giri Palanisamy, [email protected]
Metadata Requirement - Single Experiment View
Measurement
datesample
ID
parameter name
location
TDWG, October 19, 2008 Giri Palanisamy, [email protected]
Metadata Requirement - Research Project View
QA flag Measurement
media
datesample
ID
parameter name
location
TDWG, October 19, 2008 Giri Palanisamy, [email protected]
Metadata Requirement - Long-term or Multidisciplinary View
MeasurementQA flag
media
generator
method
datesample
ID
parameter name
location
records
Units
TDWG, October 19, 2008 Giri Palanisamy, [email protected]
Metadata Requirement - Integrated System & Archive View
MeasurementQA flag
media
generator
method
datesample
ID
parameter name
location
records
Units
Sample def.typedatelocationgenerator
labfield
Method def.
words, wordsunitsmethod
Parameter def.
org.typenamecustodianaddress, etc.
coord.elev. typedepth
Recordsystem
datewords, words.
QA def.
Units def.
GIS
TDWG, October 19, 2008 Giri Palanisamy, [email protected]
Metadata Requirement - An Initial View of Data…
MeasurementQA flag
media
generator
method
datesample
ID
parameter name
location
records
Units
Sample def.typedatelocationgenerator
labfield
Method def.
words, wordsunitsmethod
Parameter def.
org.typenamecustodianaddress, etc.
coord.elev. typedepth
Recordsystem
datewords, words.
QA def.
Units def.
GIS
Metadata Requirement - Single Experiment ViewMetadata Requirement - Research Project ViewMetadata Requirement - Long-term or Multidisciplinary ViewMetadata Requirement - Integrated System & Archive View
