1. TDWG, October 19, 2008 Giri Palanisamy, palanisamyg@ornl.gov 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, &nbsp (space), last year etc..  Broken links  Validating a text field –Example: keywords field contains value “keywords relevant to ecology”

2. TDWG, October 19, 2008 Giri Palanisamy, palanisamyg@ornl.gov Metadata Requirement - An Initial View of Data… Measurement

3. TDWG, October 19, 2008 Giri Palanisamy, palanisamyg@ornl.gov Metadata Requirement - Single Experiment View Measurement date sample ID parameter name location

4. TDWG, October 19, 2008 Giri Palanisamy, palanisamyg@ornl.gov Metadata Requirement - Research Project View QA flag Measurement media date sample ID parameter name location

5. TDWG, October 19, 2008 Giri Palanisamy, palanisamyg@ornl.gov Metadata Requirement - Long-term or Multidisciplinary View Measurement QA flag media generator method date sample ID parameter name location records Units

6. TDWG, October 19, 2008 Giri Palanisamy, palanisamyg@ornl.gov Metadata Requirement - Integrated System & Archive View Measurement QA flag media generator method date sample ID parameter name location records Units Sample def. type date location generator lab field Method def. words, words units method Parameter def. org.type name custodian address, etc. coord. elev. type depth Record system date words, words. QA def. Units def. GIS

7. TDWG, October 19, 2008 Giri Palanisamy, palanisamyg@ornl.gov Metadata Requirement - An Initial View of Data… Measurement QA flag media generator method date sample ID parameter name location records Units Sample def. type date location generator lab field Method def. words, words units method Parameter def. org.type name custodian address, etc. coord. elev. type depth Record system date words, words. QA def. Units def. GIS Metadata Requirement - Single Experiment View Metadata Requirement - Research Project View Metadata Requirement - Long-term or Multidisciplinary View Metadata Requirement - Integrated System & Archive View