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05. Field M08C – Computer files - Main/master level

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Description of field M08C – Computer files - Main/master level.

For more MARC 21 documentation:

Character Descrizione CBS MARC
tag / sbf.		 PICA+
tag / sbf.		 Import, online cataloguing and MARC 21 export
File del computer M08C 014C
18-21 Undefined $a $a
  • During import from MARC 21 general

When these values are present, they are ignored.

This field is generated when position 06 - Type of record - of the Leader is equal to - Computer file -.

  • During online cataloguing

The values can be added or updated.

Subfield $a is repeatable and contains one value. When one subfield $a is present, it must occur 4 times.

  • During export to MARC 21 general
    • When these values are present, they are exported.
    • When the values are missing, |||| - No attempt to code - is generated.
  • During export to WorldCat
    • When these values are present, they are exported.
    • When the values are missing, |||| - No attempt to code - is generated.
22 Target audience $b $b
  • During import from MARC 21 general
    • When the value is present and is not | - No attempt to code -, it is imported.
    • When the value is |, it is ignored.

In WorldCat, the value blank - Unknown or not specified - is considered as a default for different types of material, and the value | - No attempt to code - is not allowed (March 2021).

  • During online cataloguing

The value can be added or updated.

  • During export to MARC 21 general
    • When the value is present, it is exported.
    • When the value is missing, | - No attempt to code - is generated.
  • During export to WorldCat
    • When the value is present and is not | - No attempt to code -, it is exported.
    • When the value is I or is missing, value blank - Unknown or not specified - is generated.
23 Form of item $c $c
  • During import from MARC 21 general
    • When the value is present and is not | - No attempt to code -, it is imported.
    • When the value is |, it is ignored.

The value must be one of the official allowed codes.

For computer files, only a limited set of values is allowed.

In WorldCat, the value blank - None of the following - is considered as a default for different types of material, and the value | - No attempt to code - is not allowed (March 2021). However, according to LoC MARC, the value blank means - Unknown or not specified – for computer files.

  • During online cataloguing

The value can be added or updated.

  • During export to MARC 21 general
    • When the value is present, it is exported.
    • When the value is missing, | - No attempt to code - is generated.
  • During export to WorldCat
    • When the value is present and is not |, it is exported.
    • When the value is I or is missing, value blank - None of the following – (OCLC MARC) / blank - Unknown or not specified - (LoC MARC) is generated. However, the value blank has a specific meaning.
24-25 Undefined $d $d
  • During import from MARC 21 general

When the values are present, they are ignored.

  • During online cataloguing

The values can be added or updated.

Subfield $d is repeatable and contains one value. When one subfield $d is present, it must occur 2 times.

  • During export to MARC 21 general
    • When the values are present, they are exported.
    • When the values are missing, || - No attempt to code - is generated.
  • During export to WorldCat
  • When the values are present, they are exported.
  • When the values are missing, || - No attempt to code - is generated.
26 Type of computer file $e $e
  • During import from MARC 21 general
    • When the value is present and is not | - No attempt to code -, it is imported.
    • When the value is |, it is ignored.

In WorldCat, the value u - Unknown - is considered as a default for computer files, and the value | - No attempt to code - is not allowed (March 2021).

  • During online cataloguing

The value can be added or updated.

  • During export to MARC 21 general
    • When the value is present, it is exported.
    • When the value is missing, | - No attempt to code - is generated.
  • During export to WorldCat
    • When the value is present and is not | - No attempt to code -, it is exported.
    • When the value is I or is missing, value u - Unknown - is generated.
27 Undefined $f $f
  • During import from MARC 21 general

When the value is present, it is ignored.

  • During online cataloguing

The value can be added or updated.

  • During export to MARC 21 general
    • When the value is present, it is exported.
    • When the value is missing, | - No attempt to code - is generated.
  • During export to WorldCat
    • When the value is present, it is exported.
    • When the value is missing, | - No attempt to code - is generated.
28 Government publication $g $g
  • During import from MARC 21 general
    • When the value is present and is not | - No attempt to code -, it is imported.
    • When the value is |, it is ignored.

In WorldCat, the value blank - Not a government publication - is considered as a default for several types of material, and the value | - No attempt to code - is not allowed (March 2021).

  • During online cataloguing

The value can be added or updated.

  • During export to MARC 21 general
    • When the value is present, it is exported.
    • When the value is missing, | - No attempt to code - is generated.
  • During export to WorldCat
    • When the value is present and is not | - No attempt to code -, it is exported.
    • When the value is I - No attempt to code - or is missing, value blank - Not a government publication - is generated. However, the value blank has a specific meaning, e.g. that the document is not a government publication. Also, the value u - Unknown if item is government publication - is not a real alternative.
29-34 Undefined $h $h
  • During import from MARC 21 general

When these values are present, they are ignored.

  • During online cataloguing

The values can be added or updated.

Subfield $h is repeatable and contains one value. When one subfield $h is present, it must occur 6 times.

  • During export to MARC 21 general
    • When these values are present, they are exported.
    • When the values are missing, |||||| - No attempt to code - is generated.
  • During export to WorldCat
    • When these values are present, they are exported.
    • When the values are missing, |||||| - No attempt to code - is generated.

Next field has the same structure:

M06M 012M Computer file/Electronic resources 00 = m Computer files/Electronic resources