FGDC/ISO Metadata StandardsHarmonization

NSDI

By:	Rick Pearsall

     	FGDC Metadata Coordinator

	rpearsall@usgs.gov

	NEGIS 2000	

Topics of Presentation
        - Background of CSDGM
        - ISO Metadata Standard Overview
        - CSDGM / ISO side-by-side
        - FGDC Registered Review
        - FGDC/ISO Harmonization Activities
        - How to Find Out More

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Executive Order 12906

Coordinating Geographic Data Acquisition and Access: The National Spatial Data Infrastructure” (NSDI)             April 1994

(b) Standardized Documentation of Data.    

 ..., each agency shall document all new geospatial data it collects or produces, either directly or indirectly, using the standard under development by the FGDC, and make that standardized documentation electronically accessible to the Clearinghouse network

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FGDC CSDGM
        -  Content Standard for Digital Geospatial

   Metadata Version 1 (FGDC-STD-001)
        -  Approved June 8, 1994
        -  Provided basic framework for metadata activities
        -  Content Standard for Digital Geospatial

    Metadata Version 2 (FGDC-STD-001-1998)
        -  Approved June 19, 1998
        -  Supersedes CSDGM V1 - June 8, 1994
        -  Provides for Profiles & User Extensions
        -  FGDC V1 Compliant Metadata Records still 		compliant

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ISO Metadata StandardDevelopment 
        - Being developed by ISO Technical	  Committee 211
        - Members (One vote/per member)
        -  26 Voting Nations, 15 Observing Nations
        -  14+ Liaison Organizations 
        - Developed via consensus                      	
        - Voluntary Standard
        - Geared towards Profiles
        - Provides for User defined elements
        - Encoded in XML (extended markup language)
        - Modeled in UML (unified modeling language)

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ISO/TC 211 organization

Geospatial 

models and 

operators

Geospatial 

data 

administration

 Geospatial 

services

Profiles and 

functional 

standards

WG 1

WG 2

WG 3

WG 4

WG 5

Kees Wevers

Netherlands

ISO/TC 211

Olaf Østensen

Chairman

Part 1 - Reference model

Part 2 - Overview

Part 3 - Conceptual schema language

Part 4 - Terminology

Part 5 - Conformance and testing

Part   7 - Spatial subschema

Part   8 - Temporal subschema

Part   9 - Rules for application schema

Part 20 - Spatial operators

Part 10 - Cataloguing

Part 11 - Geodetic reference systems

Part 12 - Indirect reference systems

Part 13 - Quality

Part 14 - Quality evaluation procedures

Part 15 - Metadata

Part 16 - Positioning services

Part 17 - Portrayal of geographic information

Part 18 - Encoding

Part 19 - Services

Part 6 - Profiles

Reports

  Functional standards

  Raster and Gridded Data

 Framework 

and reference 

model

Christopher 

Dabrowski

USA

Ken Bullock

Australia

Les Rackham

UK

Morten 

Borrebæk

Norway

Member listActive members (P-members)

Australia

Austria

Canada

China

Czech Republic

Finland

France

Germany

Islamic Republic of Iran

Italy

Jamaica

Japan

Malaysia

Morocco

Netherlands

New Zealand

Norway

Republic of Korea

Russian Federation

South Africa

Spain

Sweden

United Kingdom

USA

Yugoslavia

Switzerland

Tanzania

Observing members (O-members)

Hungary

Iceland

India

Mauritius

Pakistan

Switzerland

Turkey

Ukraine

Poland

Portugal

Belgium

Denmark

Hong Kong (corr.)

Cuba

Colombia

Liaisons

IHB, International Hydrographic Bureau 

Digital Geographic Information Working Group

ICA, International Cartographic Association

FIG, International Federation of Surveyors

UN Economic Commission for Europe, Statistical Division

EPSG, European Petroleum Survey Group

IAG, International Association of Geodesy

OGC, Open GIS Consortium, Incorporated

CEO, European Commission, Joint Research Centre, Centre for EO

ISPRS, International Society for Photogrammetry and Remote Sensing

The Permanent Committee on GIS Infrastructure for Asia and the Pacific

Internal ISO

ISO/IEC/JTC 1/SC 21/WG 3 Database

ISO/TC 204 Road transport informatics

ISO/IEC/JTC 1/SC 30 Open EDI

ISO/TC 184/SC 4 Industrial data and global manufacturing languages

ISO/TC 82 - Mining

ISO/TC 46/WG 2 - Coding of country names and related entities

ISO/TC 20 Aircraft and space vehicles

and

CEN/TC 287

Geographic information

ISO Metadata StandardDevelopment/Schedule 
        -  5 Steps/Phases
        - Working Draft                                        (1996)
        - Committee Draft                        (June 1998)

						     (November 1999)

                                                         (June 2000)
        - Draft International Standard    (October 2000)
        - Final Draft International            (March 2001)

            Standard
        - International Standard                 (July 2001)

 Present Step (US Comments via Registered Reviews)

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How Does FGDC Participate in ISO TC211
        - Via EO12906, FGDC given responsibility for NSDI Standards Development
        - FGDC member of American National Standards Institute L1 Committee
        - ANSI L1 member of ISO TC211

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FGDC Plans for the ISO Metadata Standard
        -  Why worry ISO Metadata Standard?
        - Office of Management & Budget Circular A-119

    - Directs preference in use of International Standards & National Standards
        - Global environment - Global Spatial Data Infrastructure
        -  FGDC plans to adopt ISO Metadata Standard once approved.
        - Will replace CSDGM Version 2
        - US/FGDC “Profile” development Fall 2000 using ISO Draft International Metadata Standard

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ISO Metadata & FGDC CSDGM V2
        - ISO/FGDC Metadata Standard Differences
        -  ISO more elements then FGDC
        -  Many more “Optional” elements
        -  Addresses many known deficiencies in FGDC

    CSDGM (i.e. Raster/Imagery)
        -  Necessary to meet “international” requirements
        -  Terminology Differences
        -  Obligation differences
        -  Element Name differences
        -  FGDC Metadata Records are not “yet” ISO compliant

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       FGDC			ISO 

Metadata
        - Identification
        - Data Quality
        - Spatial Organization
        - Spatial Reference
        - Entity/Attributes
        - Distribution
        - Metadata Reference
        - Citation
        - Contact
        - Time 

Metadata
        - Identification
        - Data Quality
        - Spatial Representation
        - Reference System
        - Feature Catalogue
        - Distribution
        - Metadata Reference
        - Portrayal Catalogue
        - Citation
        - Responsible Party
        - Address
        - Extent (BP, VT, Tmp)
        - On-line resource

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ISO
        - Metadata = 
        - Identification_Information +
        - 0{Data_Quality_Information}1 +
        - 0{Spatial_Data_Organization_Information}1 +
        - 0{Spatial_Reference_Information}1 +
        - 0{Entity_and_Attribute_Information}1 +
        - 0{Distribution_Information}n +
        - Metadata_Reference_Information

FGDC

FGDC vs ISO Model

NSDI

Description ‐‐ a characterization of the data set, including its intended use and limitations.

Type:  compound

Short Name:  descript

 Abstract -- a brief narrative summary of the data set.

Type:  text

Domain:  free text

Short Name:  abstract

 Purpose -- a summary of the intentions with which the data set was developed.

Type:  text

Domain:  free text 

Short Name:  purpose

FGDC Data Dictionary

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ISO Data Dictionary
| Name / Role name | Short Name       | Definition | Obligation/Condition                                                     | Maximum occurrence           | Data Type | Domain           |
|------------------|------------------|------------|--------------------------------------------------------------------------|------------------------------|-----------|------------------|
| 1                | MD_Metadata      | Metadata   | Information about metadata                                               | O                            | 1         | Class            |
| 2                | fileIdentifier   | fileID     | Unique identifier for this metadata file                                 | O                            | 1         | Caharacterstring | Free Text |
| 3                | Language         | Lang       | Language used for documenting metadata                                   | C/not identified by encoding | 1         | Class            | LanguageCode (ISO639) |
| 4                | Characterset     | Charset    | Full name of the ISO character coding standard used for the metadata set | C/ISO 10646-2 not used?      | 1         | Class            | CharacterSetCode (ISO 10646-2ISO 8859) |
| 5                | Parentidentifier | parID      | Unique identifier of the parent metadata file                            | O                            | 1         | Characterset     | Free Text |

ISO Minimal/Core Metadata Elements

Mandatory

Metadata Language Code

Metadata Characterset

Hierarchy Level Scope

Dataset Language Code

Dataset Characterset

Abstract

Category

Dataset Citation

Title and Date

Dataset Contact

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Optional

Hierarchy Level Name

Metadata Contact

Metadata Date

Metadata Standard Name

Metadata Standard Version

Geographic Box Coordinates

Geographic Description

Spatial Resolution

FGDC Registered Reviews of Committee Draft 19115
        -  CD1 July – August 1998
        -  250 Respondents, 500 Comments
        -  CD2 December 1999 - January 2000
        -  150 respondents, 700+ Comments
        -  CD3 June 2000-August 2000
        -  Comment adjudication 
        -  Multi-organizational, multi-disciplinary panel

NSDI

FGDC Registered Reviews of Committee Draft 19115
        - General Comment Categories
        - General Overall Complexity of the Standard
        - Scope of and background / rationale of the Standard
        - Unified Modeling Language (UML) representation
        - Metadata authority/responsibility and viewability for all TC211 metadata categories
        - Consistency in symbology and terminology
        - Extensibility of Enurmerated Domains and Codelists
        - Registration of Metadata entities, elements, domains, and codelists
        - Use of long and short names and unique identifiers

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FGDC ISO Metadata Standard Implementation/Education
        -  Development of FGDC Profile(s) 
        -  Implementation Issues
        -  Software development to migrate FGDC Metadata 	records to ISO (FY2000 FGDC CAP) 
        -  Metadata Collection/Validation Software (ISO Metadata 	Tools/parsers/editors/...) (FY2000 FGDC CAP) 
        -  Education
        -  Training - Training Cadre
        -  Materials - ie factsheets, workbooks
        -  Timetable
        -  Migration of existing metadata records
        -  Population of new metadata records

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Want to Find Out More
        -   FGDC Web Site – www.fgdc.gov
        -  FGDC Metadata Standard

     www.fgdc.gov/metadata/constant.html
        -  General FGDC Metadata Information

     www.fgdc.gov/metadata/metadata.html
        -  Updates on FGDC/ISO Harmonization

     www.fgdc.gov/metadata/whatsnew/fgdciso.html
        -  ISO TC211 Web Site - www.statkart.no/isotc211/

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