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Page 1 LAITS
Laboratory for Advanced Information Technology and Standards
ISO 19115 & 19115-2 Status
Liping DiLaboratory for Advanced Information Technology
and Standards (LAITS)George Mason University
[email protected]://laits.gmu.edu
Page 2 LAITS
Laboratory for Advanced Information Technology and Standards
What is ISO 19115?
• Title: Geographic Information – Metadata
• Scope: “Identifies the metadata required to describe digital geographic data. Metadata is applicable to independent datasets, aggregations of datasets, individual geographic features, and the various classes of objects that compose a feature. Metadata shall be provided for geographic datasets and may, optionally, be provided for aggregations of datasets, features, and attributes of features.”
• Status: ISO standard published May 2003
• Purchase at: http://www.iso.org
Page 3 LAITS
Laboratory for Advanced Information Technology and Standards
Primary Driver for ISO 19115
What is metadata used for?
• Locate: Find or Discover
• Evaluate: Restrictions, Quality, and Reputation
• Extract: Order or Download
• Employ: Apply and Use
Page 4 LAITS
Laboratory for Advanced Information Technology and Standards
How is ISO 19115:2003 Organized?
metadataEntity
metadataEntity
Citation & responsible
party
Citation & responsible
party
referenceSystems
referenceSystems
extentextentspatial
Representation
spatial Representatio
n
portrayalCatalogue
portrayalCatalogue
dataQuality
dataQuality
applicationSchema
applicationSchema
contentcontent
metadataExtension
metadataExtension
identificationidentification
constraintconstraint
distributiondistributionmaintenancemaintenance
Units of Measure
Units of Measure
Page 5 LAITS
Laboratory for Advanced Information Technology and Standards
What does ISO 19115:2003 include?
• Introduction
• References
• Terms (not defined elsewhere in the ISO 191** series)
• UML models – including codelists
• Core metadata list
• Data Dictionary
• Descriptions of extensions and profiles
• Abstract test suite
• Dataset Metadata application profile
• Extension methodology (informative only)
• Metadata implementation (informative only)
• Hierarchical levels of metadata (informative only)
• Implementation examples (informative only)
• Multilingual support for free text metadata elements (informative only)
Page 6 LAITS
Laboratory for Advanced Information Technology and Standards
What is ISO 19115 Part 2?
• Title: Geographic Information - Metadata - Part2: Extensions for imagery and gridded data
• Scope: This International Standard extends ISO 19115:2003 Geographic Information – Metadata by defining the schema and additional metadata required for imagery and gridded data
• Status: Working Draft 2 (released Sept 03 – Project Team lead by US (John Eller, NGA)– Presently in requirements collection process
• Collecting comments from Subject Matter Experts (SME’s)• Coordinating with ISO 19130 (harmonizing models/concepts)• NO more WD will be issued before the stabilization of 19130.
• Original Schedule: Committee Draft (CD) 8/04, Draft International Standard (DIS) 9/05, Final DIS (FDIS) 5/06, International Standard (IS) 8/06
• The schedule is likely to be delayed by about 6 months.
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Laboratory for Advanced Information Technology and Standards
Life Cycle Understanding
Discovery/Retrieval of InformationDiscovery/Retrieval of Information
Planning → Generate Task
Tasking Tasking → Request for collectionRequest for collection
Process/Merge/Exploit Process/Merge/Exploit
Dissemination/ArchivingDissemination/Archiving
Acquisition Acquisition → Collect DataCollect DataSUCCESS
FAILURE
SUCCESS
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Laboratory for Advanced Information Technology and Standards
Imagery Dataset Lifecycle(an engineering perspective)
Metadata
Platform
MetadataProcessing
MetadataExploitation
MetadataA&D
Metadata
ProductsRequirements
User
Metadata Register
AlgorithmDevelopment
PlatformPerformanceSpecification
SensorPerformanceSpecification
Each Dataset requires an end-to-end metadata capture which can be described in a single
schema (19139)A&D = Archive & Dissemination
Sensor
Metadata Capture
191301911519115-2
19101-21911519115-2
1911519115-2
1911519115-2
1911519115-2
Registers
User access to metadata required at all levels
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Laboratory for Advanced Information Technology and Standards
How is ISO 19115 Part 2 Organized?
metadataEntity
metadataEntity
Citation & responsible
party
Citation & responsible
party
referenceSystems
referenceSystems
extentextent
spatial Representatio
n
spatial Representatio
n
portrayalCatalogue
portrayalCatalogue
dataQuality
dataQuality
applicationSchema
applicationSchema
contentcontent
metadataExtension
metadataExtension
identificationidentification
constraintconstraint
distributiondistributionmaintenancemaintenance
Units of Measure
Units of Measure
AcquisitionInformation -
Imagery
AcquisitionInformation -
Imagery
dataQuality - Imagery
dataQuality - Imagery spatial
Representation - Imagery
spatial Representatio
n - Imagery
Content –Imagery
Content –Imagery
Extent –Imagery
Extent –Imagery
Page 10 LAITS
Laboratory for Advanced Information Technology and Standards
Harmonization with ISO 19130
• ISO 19130 defines the sensor models and data models for georeferenceable imagery data.– Georefeenceable imagery data: Not georectified yet but
enough geolocation information is presented so that georectification is possible.
– ISO 19130 defines the metadata for describing the geolocation of imagery and Gridded data
• Sensor model/platform information
• Functional fitting
• Ground Control Points (GCPs)
• Major efforts have been taken place to harmonize between 19115-2 & 19130– Link 19130 to 19115-2.– Solve repeating/conflict definition of metadata.
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Laboratory for Advanced Information Technology and Standards
The Linkage between ISO 19115-2 and ISO 19130
