Last week I was asked to make our list of "TOP33 MARC elements" available
in English, and by e-mail, since access to our Web address is sometimes
slow. The original report is at
www.biblio.tu-bs.de/allegro/formate/formneu.htm
Here goes:
TOP33 USMARC elements with DC concordance
-----------------------------------------
Over 4 Million records of the Library of Congress were evaluated as
of Dec. 1997.
Follows the list of those elements that occurred in at least
1% of the records - that's a mere 33 elements!
Corresponding DC element names are given where possible. There may be
a correspondence in most cases, one has to observe, however, that the
semantics are not really nicely compatible. Conversion both ways will
never be quite satisfactory, being very far from a 1:1 correspondence.
% Z TAG Element "Dublin Core"
---------------------------------------------------------------------------
100% Z 245 Title TITLE
Z 260 Imprint (Place, Publisher, Date) PUBLISHER
Z 300 Physical description (nr of pages etc.) ???
050 LoC Classification SUBJECT
(LC's call number)
Z 008 Codes, LANGUAGE
among others, language of text, country, TYPE
timespan of publ., document type
?95% 650 Topical subject heading SUBJECT
(difficult to count since repeatable!)
72% Z 100 First author (primary responsibility) CREATOR
67% Z 020 ISBN IDENTIFIER
500 General Note ?DESCRIPTION
63% 082 Dewey Decimal Classification SUBJECT
50% 043 Geographic Area Code COVERAGE
49% 504 Bibliography note DESCRIPTION
43% Z 700 Added entry personal names CONTRIBUTOR
25% 651 Geographical Name Subject Heading ?COVERAGE
18% Z 250 Edition, Version ???
710 Added entry corporate name CONTRIBUTOR
490 Series (uncontrolled) ?RELATION
17% 440 Series (under authority control) RELATION
14% 600 Personal name subject heading SUBJECT
9.4% 740 Other titles TITLE
8.2% 830 Title of subordinate work (auth. controlled) RELATION
7.3% 110 Corporate name, primary responsibility CREATOR
( 7% 041 Languages of text -> 008'35-37 ) LANGUAGE
6% 610 Corporate name subject heading SUBJECT
4% 520 brief abstract DESCRIPTION
3.8% 130 Uniform title main entry heading TITLE
3.3% 505 Contents note (multivol works) DESCRIPTION
2% Z 111 Event (mostly Conf.) main entry (+ 711 : 2.5%) ???
1% 653 Free subject term (no auth. control) SUBJECT
655 Genre as Subject SUBJECT
630 Title of a work as subject SUBJECT
060 National Library of Medicine classification SUBJECT
810 Series under corporate name RELATION
730 Uniform title added entry TITLE
533 Reprint/Reproduction note RELATION?
The 'Z' means "reliability", in the sense that "if this element is
relevant for the publication, then it will be entered".
DC.FORMAT would correspond to USMARC 516 "Type of computer file"
which, however, had not been used yet by LC.
The Type of File is sometimes hidden in 538 "System details note" ,
which is a textual note category and thus not standardized. There are only
574 occurrences anyway. LC had not yet cataloged many Epublications
by the end of 1996.
Bernhard Eversberg
Universitaetsbibliothek, Postf. 3329,
D-38023 Braunschweig, Germany
Tel. +49 531 391-5026 , -5011 , FAX -5836
e-mail [log in to unmask]
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