Nancy Morgan

GEM Project Coordinator

nmorgan@ericir.syr.edu

Stuart Sutton

Co - PI

ssutton@ericir.syr.edu

Sponsored by

U.S. Department of Education’s

National Library of Education

Special Project ofERIC Clearinghouse on Information

& Technology

Syracuse University

Presentation Outline• What is GEM? • Timeline• Technical Implementation/Tools• GEM Element Set• GEM Profile• Dublin Core

The Gateway to Educational Materials (GEM)

GEM is a consortium effort to provide educators with quick and easy access to the substantial, but uncataloged, collection of educational materials found on various federal, state, university, non-

profit, and commercial Internet sites.

Timeline

Nov ‘96

Dublin Core

Timeline

Nov ‘96

Dublin Core

June ‘97

Beta -Tools & Catalog

Timeline

Nov ‘96

Dublin Core

June ‘97

Beta -Tools & Catalog

Cataloging begins

Sept ‘97

Timeline

Nov ‘96

Dublin Core

June ‘97

Beta -Tools & Catalog

Dec ‘97

Cataloging begins

Sept ‘97

700 records8 collections

Timeline

Nov ‘96

Dublin Core

June ‘97

Beta -Tools & Catalog

Dec ‘97

Cataloging Begins

Oct ‘98

3000 records45 collections

Sept ‘97

700 records8 collections

Model for “Distributing” GEM Metadata–

GEM Tools

Resources

Resources

SeparateMetadata

EmbeddedMetadata

Metadata

Metadata

Resources

SeparateMetadata

EmbeddedMetadata

Metadata

Metadata

Harvest

Harvest

Local Site

Index

Resources

SeparateMetadata

EmbeddedMetadata

Metadata

Metadata

Harvest

Harvest

Local Site

IndexUnion

The Gateway

Resources

SeparateMetadata

EmbeddedMetadata

Metadata

Metadata

Harvest

Harvest

Local Site

IndexUnion

The Gateway

Search

Browse

GEM Tools

• GEMCat Cataloging Module

• Cross site Harvest

• Browse-builder

• PLWeb Search Engine

Metadata Continuum

Simple& Terse

Complex& Rich

Lycos Dublin Core USMARCLocation Discovery Documentation

Metadata Continuum

Simple& Terse

Complex& Rich

Lycos Dublin Core USMARCLocation Discovery Documentation

GEM Level 1Cataloging

Metadata Continuum

Simple& Terse

Complex& Rich

Lycos Dublin Core USMARCLocation Discovery Documentation

GEM Level 1Cataloging

GEM Level 2Cataloging

GEM Element Set

23 Elements

• 15 Dublin Core

• 8 GEM Elements

GEM Element Set• Audience• Duration• Essential Resources• Grade Level• Pedagogy• Academic Standards• Quality Indicators• Cataloging Agency

GEM Element Set

Controlled Vocabularies:

• Audience• Format• Grade Level• Pedagogy• Resource Type• Subject

GEM Element Set

Fully DC compliant:

• All optional

• All repeatable

• Anyone can use, anyway they like

GEM Profile 1999The rules for implementing the 23 DC/GEM

Elements in The Gateway Catalog:

• Mandatory and Optional

• Repeatable and not repeatable

GEM Profile 1999

Consists of:

• 8 GEM Elements

• 13 Dublin Core Elements

GEM Profile 1999

Do Not Use:

Other Contributor

Use:

Creator (role)

GEM Profile 1999

Do Not Use:

Source

Use:

Relation (is source of)

Dublin Core:Current Thoughts

Dublin Core

What would help:• standardize DC simple• establish/adopt/recommend ”core”

subelements• schedule for standardizing subelements• DC WWW site - latest information

Dublin Core

Dublin Core Works!!

• Optional • Qualifiers • Schemes • Extensibility

Contact:

geminfo@geminfo.org

Documentation:

http://www.geminfo.org

The Gateway Catalog:

http://www.thegateway.org