NAME: Additional definition of field 080 (UDC) in the USMARC Bibliographic Format
SOURCE: ELNET Consortium Working Group, Estonia
SUMMARY: This proposal suggests defining subfields for field 080 (Universal Decimal Classification (UDC)) to indicate edition and subdivisions of the UDC numbers.
KEYWORDS: Universal Decimal Classification; UDC; field 080 (BD)
11/15/98 - Forwarded to USMARC Advisory Group for discussion at the January 1998 MARBI meetings.
1/10/98 - Result of USMARC Advisory Group discussion - Approved, and additionally make the same changes to field 080 in the USMARC Community Information format.
2/11/98 - Result of final LC review - Approved.
PROPOSAL NO. 98-5: Additions to field 080 (UDC) 1. BACKGROUND The National Library and a consortium of libraries in Estonia are using the USMARC format for their bibliographic data. They apply UDC numbers to documents, usually several per document, in order to provide subject access. Field 080 (Universal Decimal Classification Number) has never been fully developed in USMARC because format users have never used UDC numbers to any great extent. This group of users need to control and manipulate the UDC numbers much as the users of the Dewey Decimal Classification (DDC) do in field 082. For example, field 082 has an indicator for the general type of edition, a subfield $2 for the specific edition, and the field is repeatable. 2. DISCUSSION The following changes and additions could be made to field 080 to make it more useful for subject retrieval. 080 Universal Decimal Classification Number (R) The field needs to be changed from Not Repeatable to Repeatable since multiple UDC numbers are usually assigned to an item and they could come from different editions. The field was formerly not repeatable with a repeating subfield $a, since there was only one subfield, and thus there was no need to associate sets of subfields within the field. Indicators First Undefined Second Undefined Subfield Codes #a Classification number (NR) Includes a Special auxiliary subdivision if appropriate. #x Common auxiliary subdivision (R) #b Item number (NR) #2 Edition (NR) Subfields need to be added to indicate Common auxiliary subdivisions of the main UDC classification, the specific edition of UDC, and the item number. Subfields for Common auxiliary subdivisions and edition are requested by the Estonian librarians. The separate subfield for Common auxiliary subdivisions is needed because in UDC there are no "main" numbers for concepts that occur in, for example, the Common subdivisions of form. An encyclopedia is (03), not a number in 030 (as in DDC). In UDC, a number like 030 would mean a book about encyclopedias, such as Collison's work. It is therefore possible to have two (or multiple) Common subdivisions, one of which is being used in a subject sense and the other in a standard subdivision sense (e.g. a bibliography of encyclopedias). They are not alternative numbers. In UDC no auxiliary is attached to a main number without some kind of facet indicator, such as bracket, inverted comma, hyphen, etc. They therefore all stand as separate entities, rather than being built onto a main number connected by 0 as in DDC. Each element in UDC is, as a general rule, a separate, identifiable entity and can be readily identified from its notation. When two parts of the main scheme are joined together (similar to DDC "Add to") a colon is used, so that they remain separate entities with clearly identifiable main class notation. Example: 631.111.4:502.4 - Farm location in nature reserves It is also possible in UDC to use a main class number, e.g., 311, as though it were an auxiliary, e.g., 63:311 Agricultural statistics. The Item number is not currently used by the Estonian group. It is suggested here since it is defined for other classification number fields, in case one of the classification numbers is used also as a shelving number. The subfield $a is changed from Repeatable to Not Repeatable. The field would be repeated for each new number assigned. Subfield 2 would contain a identification of the edition; the content of the subfield needs to be worked out. It should contain an indication of the edition through name and sequential or temporal designation. Examples 080 ## #a971.1/.2#2[code] 080 ## #a631.321:631.411.3#2[code] 080 ## #a001.81#2[code] 080 ## #a82:111.852#2[code] 080 ## #a821.113.4-14#2[code] 080 ## #a821.133.1#x(494)#2[code] 080 ## #a94#x(474.2)#x"19"#x(075)#x(075)#2[code] 3. PROPOSED CHANGES The following is presented for consideration: In the USMARC Bibliographic Format, change field 080 (Universal Decimal Classification Number): - Change the repeatability of the field from Not Repeatable to Repeatable - Change subfield $a (Classification Number) from Repeatable to Not Repeatable. - Add the following subfields: #x Common auxiliary subdivision (R) #b Item number (NR) #2 Edition (NR)