North American Profile for Geospatial Metadata. Mohamed Habbane/ Brian McLeod GeoConnections September 2006. North American Requirements. Canada and the US need common metadata standards so that their spatial data infrastructures will interwork.
North American Profile for Geospatial Metadata Mohamed Habbane/ Brian McLeod GeoConnectionsSeptember 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 multilingualregister • Compliant to ISO19135:2005 onregisters • 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 North American Profile Geospatial Metadata Based on ISO 19115/19139 USA CSDGM
Canada Natural Resources Canada (chair) Ontario Ministry of Natural Resources Canadian General Standards Board- Committee on Geomatics members Participants • 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 Register • Compliant with ISO19135 • Provides 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