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National Coastal Data Development Center A division of the National Oceanographic Data Center

National Coastal Data Development Center A division of the National Oceanographic Data Center. Introduction to Geospatial Metadata – ISO 191** Metadata . Please email a list of participants at each location to ncddcmetadata@noaa.gov

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National Coastal Data Development Center A division of the National Oceanographic Data Center

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  1. National Coastal Data Development Center A division of the National Oceanographic Data Center Introduction to Geospatial Metadata – ISO 191** Metadata Please email a list of participants at each location to ncddcmetadata@noaa.gov Also Email questions for the Q&A session to ncddcmetadata@noaa.gov

  2. ISO Resources Series Materials - ftp://ftp.ncddc.noaa.gov/pub/Metadata/Online_ISO_Training/Intro_to_ISO/ NOAA EDM Wiki ( ) - https://geo-ide.noaa.gov/wiki/index.php?title=Main _Page Workbooks - http://www.ncddc.noaa.gov/metadata-standards/

  3. Validating ISO Metadata Standards

  4. Tools for Validation • Schemas • NameSpaces • Schematrons

  5. XML Schemas • Defines the structure, content, and some semantics of XML documents • Pattern that represents the data’s model and defines the objects, attributes, and relationships • Defines the rules for the structure and content of an XML document

  6. Which schema do I use? • Use the schema reference at http://www.ngdc.noaa.gov/metadata/published/xsd/schema.xsd • MD_Metadata root (19115) is found at gmd.xsd • MI_Metadata root (19115-2) is found at gmi.xsd • FC_FeatureCatalogue root (19110) is found at gfc.xsd • Use biological schema set to document biological records (extends either MD or MI Metadata)

  7. Namespaces <gmi:MI_Metadata> <gmd:fileIdentifier> <gco:CharacterString>insert text</gco:CharacterString> </gmd:fileIdentifier> <gmd:language> <gco:CharacterString>insert text</gco:CharacterString> </gmd:language> xmlns:gmi=“http://www.isotc211.org/2005/gmi” xmlns:gmd=“http://www.isotc211.org/2005/gmd” xmlns:gco="http://www.isotc211.org/2005/gco" These codes are called namespaces. The namespace is a container providing context and rules for items. A definition of a term may change, depending on what namespace is applied.

  8. <gmi:MI_Metadata xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:gmd="http://www.isotc211.org/2005/gmd" xmlns:gco= “http://www.isotc211.org/2005/gco” xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:srv="http://www.isotc211.org/2005/srv" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:gsr="http://www.isotc211.org/2005/gsr" xmlns:gss="http://www.isotc211.org/2005/gss" xmlns:gts="http://www.isotc211.org/2005/gts" xmlns:gmx="http://www.isotc211.org/2005/gmx" xmlns:gmi="http://www.isotc211.org/2005/gmi" xsi:schemaLocation="http://www.isotc211.org/2005/gmi http://www.ngdc.noaa.gov/metadata/published/xsd/schema.xsd"> Validation Tips

  9. Schematrons • Used in conjunction with schemas • Checks for additional validation that the schema cannot check • Content such as west bounding coordinate is west of the east bounding coordinate • Delivers human-readable error messages

  10. Online Validation Help • ISO Validation FYI • https://geo-ide.noaa.gov/wiki/index.php?title=ISO_Validation • Validation Error Guidance for both XMLSpy and oXygen • https://geo-ide.noaa.gov/wiki/index.php?title=Validation_Error_Guidance • Online Validation • https://www.ngdc.noaa.gov/docucomp/recordServices

  11. Exercise • Metadata to Fix • ftp://ftp.ncddc.noaa.gov/pub/Metadata/Online_ISO_Training/Intro_to_ISO/exercises/metadata2fix1.xml • Open record above in Spy or oXygen • Apply correct schema • Check namespaces • Check validation

  12. Q & A Email questions for the Q&A session to ncddcmetadata@noaa.gov

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