Merging Metadata Standards: FGDC CSDGM and ISO 19115 and 19139

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Merging Metadata Standards FGDC CSDGM and ISO
19115 and 19139

• Sharon Shin
• Federal Geographic Data Committee
• Metadata Coordinator
• sharon_shin_at_fgdc.gov

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Why Create Metadata

• Allows agencies to
• Organize and maintain the organization's
  data investment
• Share data set information through data
  catalogs and clearinghouses
• Provide access for download or display and
  analysis through web services

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Metadata

• Allows users to
• Discover,
• evaluate, and
• access geodata resources.

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Consensus Standards Organizations

• ISO provides general purpose standards and
  specifications as guidance to implementation
• American National Standards Institute
• INCITS L-1 ANSIs geospatial standards body
• FGDC- US Geospatial Metadata Standards body-
  Established standards with concensus from fed,
  Tribal, state, and local govts, academic

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Why Standards?

• Interoperability- Allows communication between
  peers
• Minimizes data integration time costs
• Permits data operations under known conditions

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FGDC Metadata Content

• Identification
• Data Quality
• Spatial Representation
• Spatial reference system
• Entities/Attributes
• Distribution
• Metadata Reference
• Temporal information

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ISO Metadata

• ISO 19115
• UML abstract model
• ANSI adoption 12/24/2003
• Based on content from various national metadata
  standards including FGDC

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Core ISO Metadata

• Dataset
• Title
• Reference Date
• Responsible Party
• Geographic location
• Bounding box OR
• Geographic indentifier
• Language
• Characterset
• Topic Category
• Scale

• Abstract
• Format
• Name
• Version
• Extent
• Vertical
• Temporal
• Representation Type
• Reference System
• Lineage
• On-line Resource

Metadata Reference Elements
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ISO advantages over CSDGMCode Lists

• Citation Role Code
• (Responsible Party a repeatable field)
• Resource Provider
• Custodian
• Owner
• Distributor
• Originator
• Point of Contact
• Principal Investigator
• Processor
• Publisher
• Author

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Metadata Hierarchies

• MD_ScopeCode
• 001 attribute
• 002 attributeType
• 005 dataset
• 006 series
• 007 nonGeographicDataset
• 009 feature
• 010 featureType
• 013 service
• 014 model

• MD_Metadata
• heirarchyLevel
• MD_ScopeCode

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FGDCs US Profile Activities

• US National Metadata Profile
• Convened metadata experts
• FGDC CSDGM
• Biological Data Profile
• Shoreline Metadata Extension
• Maked recommendations for extensions additions to
  ISO 19139.
• US Profile development follows ISO 19139 adoption
  time line, coincident development.

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Document Review

• ISO 19115 Metadata Standard (UML)
• FGDC-ISO 19115 Crosswalk
• http//www.fgdc.gov/CrossWalk/ISO-FGDC-
• METADATA-CROSSWALK-V4.xls
• ISO 19108 Temporal Schema
• ISO 19109 Rules for Schema
• ISO 19110 Feature Catalog
• ISO 19139 Metadata Implementation Standard (XML)

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ISO 19139

• ISO 19139
• XML model
• Implementation Standard (ISO 19115)
• http//metadata.dgiwg.org/index.ht
• Community review- Spring/summer 2004
• Technical Specification designation Winter
  2004-2005
• September 8, collection of 19139 comments
• Public Review comments submission to IS0, through
  ANSI-L1 by September 30, 2004
• Register at metadata.dgiwg.org
• Download ISO 19139, 19115
• Winter 2004-2005 ISO adoption.

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FGDC-US Profile Activities

• No Matches in FGDC-ISO crosswalk
• Extend existing content
• Deprecate 1 FGDC element
• Distance and Bearing
• Biological Content
• Taxonomy covered by ISO 19139
• Extend content
• General Taxonomic Description
• Shoreline extension review status in process

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No Match Example

• TimePeriod Beginning/Ending Dates

• Ex_Extent (Temporal Schema
  ISO 19108)
• TMPosition (data value)
• Begin
• TM_Position
• End TM_Position

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Extension Example

• Absissa and Ordinate Resolution

• MD_Dimension
• MD_VectorSpatial Representation
• Extend with VectorResolution with
• MD_Dimension,
• Max Occurance 2
• Value

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Whats NextCrosswalk- Conversion Tool

• Content aligned with ISO 19139
• Stand alone application
• Free, download from fgdc.gov

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Whats NextMetadata Profile

• Follow FGDC Standards Coordinator guidance for US
  National Profile review.
• Through collaboration with Canadian metadata
  develop content agreeable to both countries -
  arrive at North American Metadata Profile.
• Participation with Mexicos metadata agencies
  under negotiation. If aggreement reached, US,
  Canada, Mexico North American Profile

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Whats NextFGDC Metadata Training Materials

• Develop FGDC CSDGM Version 3 workbook
• Develop base training materials and post to
  fgdc.gov
• Provide implementation assistance / training.