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Dublin Core and MARC Eric Childress OCLC Online Computer Library Center Inc. MLA BCC  2000-02-25 Louisville, KY
Outline <ul><li>Introduction </li></ul><ul><li>Dublin Core </li></ul><ul><li>MARC and ISBD/AACR2 </li></ul><ul><li>Crosswa...
Introduction <ul><li>What is a crosswalk? </li></ul><ul><ul><li>“ A specification for mapping one metadata standard to ano...
Lots of Crosswalks…. http://www.ukoln.ac.uk/metadata/interoperability
What is Dublin Core? <ul><li>Dublin Core Metadata Element Set </li></ul><ul><li>Designed to support  simple   resource des...
Dublin Core 1.1  <ul><li>A core set of DCMI-blessed qualifiers and encoding schemes are currently under ballot </li></ul>p...
MARC & ISBD/AACR2 <ul><li>MARC (ISO 2709)  </li></ul><ul><ul><li>Communications protocol for libraries </li></ul></ul><ul>...
Crosswalk Principles <ul><li>General principles guiding OCLC CORC System's crosswalk: </li></ul><ul><ul><li>Embrace  and, ...
DC to MARC 21 mapping <ul><ul><li>Contributor/Creator   700, 710, 711,  720 </li></ul></ul><ul><ul><li>Coverage    043, 04...
MARC view
Dublin Core view
Side by Side... <ul><ul><li>040 No equivalent </li></ul></ul><ul><ul><li>035 Not mapped </li></ul></ul><ul><ul><li>092 Sub...
Resource Description Format view
OCLC CORC System <ul><li>Requires only Web-browser for access/use </li></ul><ul><li>Incorporates key international standar...
CORC’s multiple outputs MARC Auth. Records MARC Bib. Records OPAC 1 OPAC-centered 2 Gateway-centered Gateway Pathfinders D...
Questions?
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MLA crosswalk

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  • Transcript of "MLA crosswalk"

    1. 1. Dublin Core and MARC Eric Childress OCLC Online Computer Library Center Inc. MLA BCC 2000-02-25 Louisville, KY
    2. 2. Outline <ul><li>Introduction </li></ul><ul><li>Dublin Core </li></ul><ul><li>MARC and ISBD/AACR2 </li></ul><ul><li>Crosswalk principles </li></ul><ul><li>Illustrative mapping </li></ul><ul><li>CORC’s capabilities </li></ul>
    3. 3. Introduction <ul><li>What is a crosswalk? </li></ul><ul><ul><li>“ A specification for mapping one metadata standard to another.” -- St. Pierre and LaPlant* </li></ul></ul><ul><li>Why crosswalk? </li></ul><ul><ul><li>Interoperability </li></ul></ul><ul><ul><li>Expose legacy data </li></ul></ul><ul><ul><li>Expand range of output/format options </li></ul></ul><ul><ul><li>* http:// www.niso.org/crsswalk.html </li></ul></ul>
    4. 4. Lots of Crosswalks…. http://www.ukoln.ac.uk/metadata/interoperability
    5. 5. What is Dublin Core? <ul><li>Dublin Core Metadata Element Set </li></ul><ul><li>Designed to support simple resource description, discovery and retrieval </li></ul><ul><li>Developed through international consensus process </li></ul><ul><ul><li>High potential for worldwide adoption </li></ul></ul><ul><ul><li>Translated into 26 languages (more pending) </li></ul></ul><ul><li>15 elements -- all optional, all repeatable </li></ul><ul><ul><li>Intended as “core” -- domains may extend </li></ul></ul><ul><ul><li>Envisioned as a simple lingua franca (crosswalk) </li></ul></ul>
    6. 6. Dublin Core 1.1 <ul><li>A core set of DCMI-blessed qualifiers and encoding schemes are currently under ballot </li></ul>purl.org/dc
    7. 7. MARC & ISBD/AACR2 <ul><li>MARC (ISO 2709) </li></ul><ul><ul><li>Communications protocol for libraries </li></ul></ul><ul><ul><li>National iterations + UNIMARC (global) </li></ul></ul><ul><ul><li>MARC 21: Bibliographic, Authorities, Holdings, Classification, Community Information </li></ul></ul><ul><ul><li>MARC 21 presumes ISBD-like content rules </li></ul></ul><ul><li>ISBD & AACR2: </li></ul><ul><ul><li>Prescribes required elements, order, repeatability punctuation, expression, source of metadata </li></ul></ul><ul><ul><li>Presumes national interpretations </li></ul></ul><ul><ul><li>Extensibility possible, but constrained </li></ul></ul>
    8. 8. Crosswalk Principles <ul><li>General principles guiding OCLC CORC System's crosswalk: </li></ul><ul><ul><li>Embrace and, if necessary, extend industry standards </li></ul></ul><ul><ul><li>Emphasize the predictable and pragmatic </li></ul></ul><ul><ul><li>Engineer for robust performance and ease of enhancement </li></ul></ul><ul><ul><li>Expose as much as information content as practical in all supported views </li></ul></ul><ul><li>LC’s crosswalk: </li></ul><ul><ul><li>http://lcweb.loc.gov/marc/dccross.html </li></ul></ul>
    9. 9. DC to MARC 21 mapping <ul><ul><li>Contributor/Creator 700, 710, 711, 720 </li></ul></ul><ul><ul><li>Coverage 043, 045, 500 , 513, 522, 651, 654 </li></ul></ul><ul><ul><li>Date 260 $c , 307, 541, 567 </li></ul></ul><ul><ul><li>Description 250, 300, 500, 505, 520 , 521, 586 </li></ul></ul><ul><ul><li>Format 300, 538, 856 $q </li></ul></ul><ul><ul><li>Identifier 020, 022, 024 , 856 </li></ul></ul><ul><ul><li>Language 041, 546 </li></ul></ul><ul><ul><li>Publisher 260 $b , 700, 710, 711, 720 </li></ul></ul><ul><ul><li>Relation 440, 490, 538, 773, 774, 775, 776, 780, 787 $n , 786, 830, 856 </li></ul></ul><ul><ul><li>Rights 506, 540 , 856 </li></ul></ul><ul><ul><li>Source 786 , 856 </li></ul></ul><ul><ul><li>Subject 050, 082, 090, 092, 600, 610, 611, 650, 651, 650, 653 , 690, 699 </li></ul></ul><ul><ul><li>Title 130, 245 , 246 </li></ul></ul><ul><ul><li>Type 516, 655 </li></ul></ul>
    10. 10. MARC view
    11. 11. Dublin Core view
    12. 12. Side by Side... <ul><ul><li>040 No equivalent </li></ul></ul><ul><ul><li>035 Not mapped </li></ul></ul><ul><ul><li>092 Subject . DDC.Local </li></ul></ul><ul><ul><li>245 Title </li></ul></ul><ul><ul><li>260 $a Publisher .Place </li></ul></ul><ul><ul><li>260 $b Publisher </li></ul></ul><ul><ul><li>270 No equivalent </li></ul></ul><ul><ul><li>500 Description </li></ul></ul><ul><ul><li>500 Description </li></ul></ul><ul><ul><li>516 Not mapped </li></ul></ul><ul><ul><li>520 Description .Summary </li></ul></ul><ul><ul><li>540 $a Rights </li></ul></ul><ul><ul><li>540 $2 No equivalent </li></ul></ul><ul><ul><li>650, 4 Subject . LCSH </li></ul></ul><ul><ul><li>650, 4 Subject . LCSH </li></ul></ul><ul><ul><li>856 Identifier . URL </li></ul></ul>
    13. 13. Resource Description Format view
    14. 14. OCLC CORC System <ul><li>Requires only Web-browser for access/use </li></ul><ul><li>Incorporates key international standards: </li></ul><ul><ul><li>Metadata: Dublin Core , AACR2/MARC </li></ul></ul><ul><ul><li>Characters: Unicode , ALA Character Set </li></ul></ul><ul><li>Automates the creation and maintenance of: </li></ul><ul><ul><li>Resource records (bibliographic records) </li></ul></ul><ul><ul><ul><li>Including URL management (automation + cooperation) </li></ul></ul></ul><ul><ul><li>Authority records (established forms of names) </li></ul></ul><ul><ul><li>Pathfinders (Webliographies) </li></ul></ul><ul><li>Offers Web access to DDC </li></ul><ul><li>Integrated with OCLC Cataloging & FirstSearch </li></ul>purl.oclc.org/corc
    15. 15. CORC’s multiple outputs MARC Auth. Records MARC Bib. Records OPAC 1 OPAC-centered 2 Gateway-centered Gateway Pathfinders Dublin Core Metadata
    16. 16. Questions?
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