Introduction to Geospatial Metadata – ISO 191** Metadata

National Coastal Data Development Center

A division of the National Oceanographic Data Center

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

• Series Materials• ftp://ftp.ncddc.noaa.gov/pub/

Metadata/Online_ISO_Training/

NOAA EDM Wiki ( )https://geo-ide.noaa.gov/wiki/

index.php?title=Main _Page

Workbooks http://www.ncddc.noaa.gov/metadata-standards/

ISO Resources

• Why ISO Metadata

• What is ISO Metadata

• General Overview of ISO Content and Organization

Why ISO Metadata?

Executive Order 12906

• Established the National Spatial Data Infrastructure (NSDI) to support public and private sector applications of geospatial data

• Established an electronic National Geospatial Data Clearinghouse for the NSDI to address data standardization, make geospatial data publicly available, and address redundancy and incompatibility of geospatial information

OMB Circular A-16

• Provides guidance for federal agencies that create, maintain or use spatial data directly or indirectly through the establishment of the National Spatial Data Infrastructure (NSDI) and the Federal Geographic Data Committee (FGDC)

• Establishes guidelines for the management of digital spatial data and the use of those assets. It also appoints the FGDC to the interagency coordinating body for NSDI-related activities

FGDC Endorsed Standards

What is ISO Metadata?

ISO Geospatial Metadata• ISO – International Organization for Standardization

• Use the 191** series– ISO 19115:2003/Cor 1:2006 Geographic information --

Metadata– ISO 19115-2:2009 Geographic information -- Metadata

-- Part 2: Extensions for imagery and gridded data– ISO/TS 19139:2007 Geographic information --

Metadata -- XML schema implementation – ISO 19110:2005/Amd 1:2011 Geographic information --

Methodology for feature cataloguing– ISO 19119:2005/Amd 1:2008 Geographic information --

Services Extensions of the service metadata model

ISO 19115 → Core InformationISO 19115-2 → Extensions for Instrumentation and Gridded Data

ISO 19110 → Entities and AttributesISO 19119 → Services

ISO 19157 → Data Quality

19139XML schema implementation

19115-2 Part 2: gridded data and

imagery

19115Geographic information –

Metadata

19110

MI_

MD_

FC_

19119Services

SV_19157

Understanding ISO Standards

DQ_

19111

ISO Metadata

• Is flexible• Depicts relationships between datasets

and collection level (parent/child relationships)

• Standardizes descriptors through the use of codelists

• Accommodates new technologies (such as documenting services)

• Accommodates International scope• Undergoes revision/review in 5 year cycles

ISO 19115:2003(E)

Whocollected the data?processed the data?wrote the metadata?to contact for questions?to contact to order?owns the data?

Whocollected the data?processed the data?wrote the metadata?to contact for questions?to contact to order?owns the data?

Wherewere the data collected?were the data processed?are the data located?

Wherewere the data collected?were the data processed?are the data located?

Whatare the data about?project were they collected under?are the constraints on their use?is the quality?are appropriate uses?parameters were measured?format are the data in?

Whatare the data about?project were they collected under?are the constraints on their use?is the quality?are appropriate uses?parameters were measured?format are the data in?

Whenwere the data collected?were the data processed?

Whenwere the data collected?were the data processed?

Howwere the data collected?were the data processed?do I access the data?do I order the data?much do the data cost?was the quality assessed?

Howwere the data collected?were the data processed?do I access the data?do I order the data?much do the data cost?was the quality assessed?

Whywere the data collected?

Whywere the data collected?

Metadata written using ISO still answers these important

questions:

Metadata written using ISO still answers these important

questions:

ISO ContentISO Content

Organization and Content of ISO

• ISO is organized in Sections and Packages• Section: Groupings of similar

information

• Package: Logical groupings of elements found in multiple locations within Sections

Main Sections of ISO MetadataMetadata Information (MD_Metadata)

Root element that contains information about the metadata itself. Root contains main sections.

Spatial Representation Information (gmd:spatialRepresentationInfo) geospatial representation of a resource

Reference System Information (gmd:referenceSystemInfo)

spatial and temporal reference systems used in the resource

Metadata Extension Information (gmd:metadataExtensionInfo)

user specified extensions to the metadata standard used to describe the resource

Identification Information (gmd:identificationInfo)

uniquely identify a resource or resources

Content Information (gmd:contentInfo)

physical parameters and other attributes contained in a resource

Distribution Information (gmd:distributionInfo) who makes a resource available and how to get it

Data Quality Information (gmd:dataQualityInfo)

quality and lineage (including processing steps and sources) of a resource

Portrayal Catalogue Information (gmd:portrayalCatalogueInfo)

collection of defined symbols used to depict, to humans, features on a map

Metadata Constraint Information (gmd:metadataConstraints)

constraints on the use of the metadata and the resource it describes

Application Schema Information (gmd:applicationSchemaInfo) application schema used to build a dataset

Metadata Maintenance Information (gmd:metadataMaintenance)

maintenance of the metadata and the resource it describes

Main Sections of ISO MetadataMetadata Information (MI_Metadata)

Root element that contains information about the metadata itself. Root contains main sections.

Spatial Representation Information (gmd:spatailRepresentationInfo)

geospatial representation of a resource

Reference System Information (gmd:referenceSystemInfo)

spatial and temporal reference systems used in the resource

Metadata Extension Information (gmd:metadataExtensionInfo)

user specified extensions to the metadata standard used to describe the resource

Identification Information (gmd:identificationInfo)

uniquely identify a resource or resources

Content Information (gmd:contentInfo)

physical parameters and other attributes contained in a resource

Distribution Information (gmd:distributionInfo)

who makes a resource available and how to get it

Data Quality Information (gmd:dataQualityInfo)

quality and lineage (including processing steps and sources) of a resource

Portrayal Catalogue Information (gmd:portrayalCatalogueInfo)

portrayal catalogues used for the resource

Metadata Constraint Information (gmd:metadataConstraints)

constraints on the use of the metadata and the resource it describes

Application Schema Information (gmd:applicationSchemaInfo)

application schema used to build a dataset

Metadata Maintenance Information (gmd:metadataMaintenance)

maintenance of the metadata and the resource it describes

Acquisition Information (gmi:acquisitionInformation)

instruments, platforms, operations and other info of data acquisition (only MI_Metadata)

Package Abbreviations

CI Citation

DQ Data Quality

DS Dataset

EX Extent

FC Feature Catalogue

GM Geometry

LE Lineage Extended (added in ISO 19115-2)

LI Lineage

MD Metadata

MI Metadata for Imagery (added in ISO 19115-2 and replace the root MD)

RS Reference System

QE Data Quality Extended

Guide to Implementing ISO Metadatahttp://www.ncddc.noaa.gov/

metadata-standards/

• parallels the standard

• provides FAQs

• implementation guide

Workbook of ISO 19115

• is a resource for applying the ISO

metadata standard

• provides names and definitions

• describes domain values (valid values that can be assigned to the data element)

• uses a Graphical Representation of the Production Rules

• is a resource for applying the ISO

metadata standard

• provides names and definitions

• describes domain values (valid values that can be assigned to the data element)

• uses a Graphical Representation of the Production Rules

Using the Workbook

Tag: XML tagDefinition: definition of the tagType: type or packageDomain: format of the contentMultiplicity: if something is repeatable and if it is requiredAttributes: XML attributesBest Practices: recommended implementation

Tag: XML tagDefinition: definition of the tagType: type or packageDomain: format of the contentMultiplicity: if something is repeatable and if it is requiredAttributes: XML attributesBest Practices: recommended implementation

fileIdentifier – A unique phrase or string that uniquely identifies the metadata file.

Type: gco:characterStringDomain: free textMultiplicity: optional *this is NAP requirement*Attributes: nilReasonBest Practices: Each metadata record shall have a universal unique identifier (UUID) to distinguish it from others.

Using the Workbook

Using the Graphics

What is ISO Metadata?Email questions to ncddcmetadata@noaa.gov