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BACLAC - Descriptive Cataloguing (view source)
Revision as of 10:09, 14 July 2023
, 10:09, 14 July 2023082
[[fr:BACLAC - Cadre de classification de bibliothèque]]
{{Template:BACLAC Tabs}}
<br>
=082 Dewey Decimal Call Number=
<u>'''Changes to contents of MARC field 082'''</u>
<br>
This is to announce the implementation at Library and Archives Canada of new instructions regarding the contents of MARC21 bibliographic subfields '''082 $q''' and '''$2''', effective July 17, 2023. These changes will allow us to better document the context in which a Dewey Decimal Classification (DDC) number was assigned.<br>
<br>
First off, the use of subfield '''082 $q (assigning agency)''' will allow us to show that the DDC number was built by <u>LAC</u> staff, thus conferring it a level of authoritativeness that had so far eluded it. The sole content of the subfield will be the LAC library symbol, namely <u>CaOONL</u>.<br>
<br>
As for subfield '''082 $2 (edition information)''', it will from now on indicate not only the <u>number</u> of the DDC edition consulted, but also the <u>language</u> of the version that was used and the <u>date</u> when the number was assigned. As the following paragraphs will show you, there will be some subtle differences in coding depending on which version of DDC was consulted.<br>
<br>
<br>
<u>'''Coding instructions to follow when consulting WebDewey'''</u>
<br>
For '''full''' classification numbers built with the help of the '''English''' language version of WebDewey, subfield 082 $2 shall include the digits '''23''' to denote the edition number, followed by the '''eng''' language code and a date formulated in the '''yyyymmdd''' format, each element being separated by a forward slash :
:082
::04$a641.5951'''$qCaOONL$223/eng/20230717'''
<br>
<br>
In contrast, any '''full''' number built with the help of the '''French''' version of WebDewey shall be followed by a subfield 082 $2 formulated as follows:
:082
::04$a641.5951'''$qCaOONL$223/fre/20230717'''
<br>
<br>
For '''abridged''' classification numbers built with the help of WebDewey in either language, subfield $2 shall include the edition number '''15''', followed by the '''eng''' language code (this in all cases as there is no 15th abridged edition of DDC in French) and a date formulated according to the '''yyyymmdd''' format, for example:
:082
::14$a629.13'''$qCaOONL$215/eng/20230717'''
<br>
<br>
<u>'''Coding instructions to follow when consulting print editions of DDC'''</u>
<br>
If, in exceptional circumstances, a full or abridged classification number is constructed through the use of a '''print''' edition of DDC, record in subfield $2 the <u>edition</u> number as well as the <u>language</u> and the <u>year of publication or printing</u> of the version used, for example:
::082 04 $a612.1/1'''$qCaOONL$223/eng/2011'''
::082 04 $a612.1/1'''$qCaOONL $223/fre/2015'''
::082 14 $a612.1'''$qCaOONL $215/eng/2012'''
::082 14 $a612.1'''$qCaOONL $214/fre/2005'''
<br>
<br>
<u>'''Notes:'''</u>
*Do not revise the formatting of field 082 in existing bibliographic records unless you are also modifying the classification number (such as when updating a CIP record).
*If an existing record includes a 082 tag that has a subfield $q generated by OCLC ($qOCoLC), ignore it and add a new 082 with our own code in $q.
*It is perfectly acceptable to establish an abridged DDC number from a version of the 23rd edition, i.e. by using the location of the segmentation to determine a number that we would normally be expected to build using the 15th abridged edition. In these circumstances, the proper thing to do is to nonetheless use edition number 15 in subfield $2.
*The CIP data block generator has been set to only print the first two characters of subfield $2. Therefore the new data elements in subfield $2 will not appear as part of the CIP data block.
[[Category:BACLAC]]
{{Template:BACLAC Tabs}}
<br>
=082 Dewey Decimal Call Number=
<u>'''Changes to contents of MARC field 082'''</u>
<br>
This is to announce the implementation at Library and Archives Canada of new instructions regarding the contents of MARC21 bibliographic subfields '''082 $q''' and '''$2''', effective July 17, 2023. These changes will allow us to better document the context in which a Dewey Decimal Classification (DDC) number was assigned.<br>
<br>
First off, the use of subfield '''082 $q (assigning agency)''' will allow us to show that the DDC number was built by <u>LAC</u> staff, thus conferring it a level of authoritativeness that had so far eluded it. The sole content of the subfield will be the LAC library symbol, namely <u>CaOONL</u>.<br>
<br>
As for subfield '''082 $2 (edition information)''', it will from now on indicate not only the <u>number</u> of the DDC edition consulted, but also the <u>language</u> of the version that was used and the <u>date</u> when the number was assigned. As the following paragraphs will show you, there will be some subtle differences in coding depending on which version of DDC was consulted.<br>
<br>
<br>
<u>'''Coding instructions to follow when consulting WebDewey'''</u>
<br>
For '''full''' classification numbers built with the help of the '''English''' language version of WebDewey, subfield 082 $2 shall include the digits '''23''' to denote the edition number, followed by the '''eng''' language code and a date formulated in the '''yyyymmdd''' format, each element being separated by a forward slash :
:082
::04$a641.5951'''$qCaOONL$223/eng/20230717'''
<br>
<br>
In contrast, any '''full''' number built with the help of the '''French''' version of WebDewey shall be followed by a subfield 082 $2 formulated as follows:
:082
::04$a641.5951'''$qCaOONL$223/fre/20230717'''
<br>
<br>
For '''abridged''' classification numbers built with the help of WebDewey in either language, subfield $2 shall include the edition number '''15''', followed by the '''eng''' language code (this in all cases as there is no 15th abridged edition of DDC in French) and a date formulated according to the '''yyyymmdd''' format, for example:
:082
::14$a629.13'''$qCaOONL$215/eng/20230717'''
<br>
<br>
<u>'''Coding instructions to follow when consulting print editions of DDC'''</u>
<br>
If, in exceptional circumstances, a full or abridged classification number is constructed through the use of a '''print''' edition of DDC, record in subfield $2 the <u>edition</u> number as well as the <u>language</u> and the <u>year of publication or printing</u> of the version used, for example:
::082 04 $a612.1/1'''$qCaOONL$223/eng/2011'''
::082 04 $a612.1/1'''$qCaOONL $223/fre/2015'''
::082 14 $a612.1'''$qCaOONL $215/eng/2012'''
::082 14 $a612.1'''$qCaOONL $214/fre/2005'''
<br>
<br>
<u>'''Notes:'''</u>
*Do not revise the formatting of field 082 in existing bibliographic records unless you are also modifying the classification number (such as when updating a CIP record).
*If an existing record includes a 082 tag that has a subfield $q generated by OCLC ($qOCoLC), ignore it and add a new 082 with our own code in $q.
*It is perfectly acceptable to establish an abridged DDC number from a version of the 23rd edition, i.e. by using the location of the segmentation to determine a number that we would normally be expected to build using the 15th abridged edition. In these circumstances, the proper thing to do is to nonetheless use edition number 15 in subfield $2.
*The CIP data block generator has been set to only print the first two characters of subfield $2. Therefore the new data elements in subfield $2 will not appear as part of the CIP data block.
[[Category:BACLAC]]
