Introduction to CORC

Eric Childress OCLC

OLAC/MOUG Seattle 2000-10-13

Outline

 History of CORC  CORC™service Overview – Libraries and the Web – OCLC’s New Environment  Resource Catalog  Authority File  Pathfinder Database  WebDewey™ in CORC

History of CORC

 Cooperative Online Resource Catalog (CORC)  Initial concept and proposal: – Office of Research retreat, Summer 1998  Rationale: – The Web is increasingly the information conduit of choice – Librarians and libraries can add value to the Web as a information resource through: • Selection of quality resources • • Superior description and indexing Better presentation of selected resources – OCLC can help: • • Extending OCLC’s cooperative model Providing new tools

History of CORC (cont.)

 CORC Project team: – Director: Thom Hickey, Chief Scientist – OCLC Office of Research – – – OCLC Library Services Documentation Development  CORC System components: – Office of Research projects • Kilroy • • Mantis Scorpion – SiteSearch  Call for participation: Late 1998 Thom Hickey

History of CORC (cont.)

 Target for research project: – 100 libraries (.5 FTE ea.) over 12-18 months – 15% from outside the United States  Research phase starts: January 15, 1999  Initial Resource Catalog from: – NetFirst records – InterCat records (from WorldCat) May/June 1999

History of CORC (cont.)

 Founders Phase (18 months) – Participants meetings: • May 1999, November 1999, July 2000 – Expands to ~500 libraries from 23 countries • Added approximately 25,000 records, 600 pathfinders – Users provide valuable guidance on design  CORC goes production: July 1, 2000  Now: CORC Users Group – Officers: Suzanne Pilsk, Jackie Shieh – Next meeting: ALA, Monday January 15, 2001

OCLC CORC™ service Overview

 System requirements: current Web browser  All* users with Web access and OCLC cataloging authorizations may access CORC –

* Exceptions:

Cataloging Agent, CatExpress program  Pricing parallels standard OCLC Cataloging Service pricing  Two systems: – CORC production system ( corc.oclc.org

) – CORC practice system ( purl.oclc.org/corc/practice )

Libraries and the Web

1

OPAC-centered

MARC Bib.

Records MARC Auth.

Records

OPAC

2

Gateway-centered

Pathfinders Dublin Core Metadata

Gateway

OCLC’s new environment

Authority Records Resource Records CORC

Record

OCLC Cataloging OCLC Authority File Pathfinders

Record

CORC Resource Catalog

 Initially a catalog of records for e-resources – Approx. 360,000 resource records (as of 10/2000)  Key features: – Boolean searching of Resource Catalog – – – Standard searching of WorldCat from CORC CORC RC is synchronized with WorldCat Supports harvesting data from Web pages to create initial records (single or multi-record) – User may choose Dublin Core or MARC editing views; output in MARC, DC HTML, DC RDF – Offers authority checking and linking features

CORC Resource Catalog

Searching the RC

CORC Resource Catalog

OCLC MARC view

CORC Resource Catalog

Dublin Core view

CORC Authority File

 Identical in scope to OCLC Cataloging service authority file – LC name, title, subject records  Key features: – Ability to search authority records • Keyword (Search) • Phrase (Browse) – Ability to control headings – Enable global replace of headings (automatic) – Ability to export authority record (MARC only)

CORC Authority File

Search/Browse screen

1

Browsing the CORC Authority File

2 3 MARC Authority Record

CORC Pathfinder Database

 Pathfinders are edited lists of selected resources  The institution which creates a pathfinder may: – Retain full editing privileges – Share editing with selected additional institutions  Pathfinders may be cloned  Multiple choices for adding content: – Importing, keying, cutting and pasting – – Linking to RC records, “canned” searches of the RC Linking to graphics, Cascading Style Sheets (CSS)  May be exported as: – HTML page – Link (PURL and/or URL)

Searching the PF

CORC Pathfinder Database

CORC Pathfinder Database

Sample Pathfinder

WebDewey™ in CORC

 Dewey Decimal Classification available through the Web  Includes: – DDC suggestion tool for classifying Web sites during harvesting – DDC-to-LCSH mapping  Access: – Currently only accessible through CORC – Requires ordering and an annual fee  Updated quarterly

WebDewey™ in CORC

Search/Browse screen

WebDewey™ in CORC

Search results

Related links:

 OCLC CORC™ service: – CORC information ( purl.oclc.org/corc ) – CORC production system ( corc.oclc.org

) – CORC practice system ( purl.oclc.org/corc/practice )  WebDewey™ in CORC: – Forest Press home page ( www.oclc.org/fp )  OCLC Institute: – Home page ( www.oclc.org/institute )  Dublin Core Metadata Initiative – Home page ( purl.org/DC )