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North American Profile for North American Profile for Geospatial MetadataGeospatial Metadata

Mohamed Habbane/ Brian McLeod Mohamed Habbane/ Brian McLeod GeoConnectionsGeoConnectionsSeptember 2006September 2006

North American Requirements

Canada and the US need common metadata standards so that their spatial data infrastructures will interwork. There is a need to support English,

French and Spanish as well as native languages

Code lists may be extended to include additional standardized elements

Free text character string fields may have standardized content defined in code lists

Optional fields may be made mandatory or conditional

Metadata is the Basis

The ISO 19115:2003 geographic information - metadata standard is the foundation upon which most geospatial services are based.

A complementary standard 19115-2 is under development to address Imagery and Gridded Data metadata.

However, these standards mandate only a few (8) metadata elements and provide a list of elements to be selected to address particular uses.

What is a profile?

ISO 19106 Profiles

“... set of one or more base standards or sub-sets of base standards…that are necessary for accomplishing a particular function.”

Two levels of Conformance

Level 1 - subset

Level 2 - extension with allowed context

An implementation of the base standard is a valid (but maybe limited) implementation of the profile

Levels of Profiles

Internationally Registered (ISP)

Nationally/Regionally Registered

Published Profiles

Formally within Community

Informally within Organization

North America 19115 profile

Selection of items from ISO19115:2003

Promotion of optional fields to mandatory

Extension of code lists

Addition of values to existing code lists

Addition of code lists

Introduction of a multilingual register

Compliant to ISO19135:2005 on registers

English and/et Français (and potentially Spanish)

Metadata items, Code lists

Register will be accessible on the Web

XML document, Web Services

Web Browser

The Goal

CAN/CGSB 171.3-95

USA CSDGM

North American Profile

Geospatial Metadata

Based on ISO 19115/19139

Participants

Canada

Natural Resources Canada (chair)

Ontario Ministry of Natural Resources

Canadian General Standards Board-

Committee on Geomatics

members

USA

Federal Geographic Data Committee

INCITS-L1

members

NAP Metadata Working Group Potential Mexican

involvement

Meetings & Schedule

Sherbrooke, QC – Sept 2005

Columbus, OH – Dec 2005

Vienna, VA – March 2006

Denver, CO – Sept 2006

Initial draft document – Sept 2006

Submit to standards bodies – Dec 2006?

Register

North American Profile of ISO19115:2003 – Metadata (NAP – Metadata) challenges:

Modification of code lists and coded values as needed without affecting the standard

Cultural and linguistic adaptability

Documentation in multiple languages

Query in different languages

ISO19135:2005 compliant register: a solution to the these challenges

NAP – Metadata Register Web Services

getCapabilities: Provides in XML the capabilities of the register services

getRegisterProperties: Returns in XML the properties of the register

getItemClass: Returns in XML information of a class or a set of classes of the register

getItemURI: Returns in XML URIs of an item

getRegisterItem: Returns in XML item(s) of the register

Conclusion

Introduction of the North America Profile of ISO19115:2003 – Metadata

NAP - Metadata RegisterCompliant with ISO19135Provides information about the registry,

metadata items of the profile and code lists and values

Includes a Management Application, an XML Document, and Web Services

Provides content and semantics of metadata items, code lists, and values of the profile

Provides multilingual support to users of metadata