| First Indicator | Second Indicator |
|---|---|
| Method of assignment # - No information provided/not applicable 0 - Fully machine-generated 1 - Partially machine-generated 2 - Not machine-generated |
Undefined # - Undefined |
| Subfield Codes | |
|---|---|
|
|
Used to provide information about the provenance of metadata in data fields in the record. Field 883 contains a link to the field to which it pertains.
First Indicator - Method of assignment
Data in linked field was fully machine-generated.
Data in linked field was partially machine-generated.
Data in linked field was not machine-generated (neither fully nor in part).
Second Indicator - Undefined
Contains a blank (#).
$a - Creation process
Identifies the process used to produce the data contained in the linked field. The subfield may contain a process name or some other description.
$c - Confidence value
Describes the confidence of the agency using the process/activity identified in subfield $a to generate the linked field. The subfield contains a floating point value between 0 and 1. Either a comma or a point may be used as a decimal marker. 0 means no confidence and and 1 means full confidence.
$d - Creation date
Date on which the linked field was created. This also serves as the beginning of the period of validity. Date is recorded in the format yyyymmdd in accordance with ISO 8601, Representation of Dates and Times.
$q - Assigning or generating agency
MARC organization code of the institution using the process/activity to assign or generate the linked field.
Code from: MARC Code List for Organizations.
$x - Validity end date
Date representing expected end of period of validity for the data in the linked field. Date is recorded in the format yyyymmdd in accordance with ISO 8601, Representation of Dates and Times.
$u - Uniform Resource Identifier
Uniform Resource Identifier (URI), for example a URL or URN, which identifies the process used to produce the data contained in the field to which 883 is linked. The URI can lead to a textual or structured description of the process, or the URL that was used to generate the linked field's content can be provided directly, i.e., a URL invoking a web service or conveying an API call.
$w - Bibliographic record control number
Control number of the bibliographic record from which the data in the linked field was obtained.
See description of this subfield in Appendix A: Control Subfields.
$0 - Authority record control number or standard number
Control number of the authority record from which the data in the linked field was obtained
See description of this subfield in Appendix A: Control Subfields.
$1 - Real World Object URI
See description of this subfield in Appendix A: Control Subfields.
$8 - Field link and sequence number
See description of this subfield in Appendix A: Control Subfields.