Field definition and scope:

Field 080 contains a Universal Decimal Classification (UDC) number.  The Universal Decimal Classification was developed from the Dewey Decimal Classification (DDC) scheme beginning in 1895.  In the intervening years, the two systems have become very different in arrangement and philosophy.  The UDC may be distinguished from the DDC by its extensive expansions, especially in classes 5 and 6 (science and technology), and by its use of various symbols in addition to Arabic numbers and a single decimal point.

Field 080 is NOT repeatable.

Guidelines for applying content designators:

For indicator and subfield code definitions and examples, and designator repeatability, see table below:

Position

Description

Repeatability

Field 080

Universal Decimal Classification Number

NR

Indicator:

 

 

First

Undefined; contains a blank

 

Second

Undefined; contains a blank

 

 

 

 

Subfield code:

 

 

$a

Universal Decimal Classification number

R

$b

Item number

NR

$x

Common auxiliary subdivision

R

$2

Edition identifier

NR

$6

Linkage

NR

$8

Field link and sequence number

R

See also:

01X-09X  Numbers and Codes

Variable Data Fields