[Evergreen-catalogers] FW: Expansion of the OCLC Control Number: test records now available

[Lynn Floyd]

Has anybody tested the longer OCLC numbers with Evergreen? Or, does anybody
have the plans too?

 

Lynn Floyd 
lfloyd at andersonlibrary.org 
Anderson County Library 
864-260-4500 x181 
http://www.andersonlibrary.org <http://www.andersonlibrary.org/>  
  

 

From: Oliver,Sonya [mailto:olivers at oclc.org] 
Sent: Monday, April 08, 2013 11:10 AM
To: OCLC-SHARING-L at OCLC.ORG
Subject: [OCLC-SHARING-L] Expansion of the OCLC Control Number: test records
now available

 

WorldCat continues to grow! OCLC Control Numbers are assigned to WorldCat
bibliographic records, including Institution Records. As previously
announced, the OCLC Control Number is anticipated to reach 1 billion
sometime after July 1, 2013. The actual date that the number will be reached
is unknown; it is now anticipated to be some months after July 2013. At that
point, OCLC will increase the length of the OCLC Control Number to
accommodate a variable-length number string. If you use and/or store OCLC
MARC bibliographic records and the OCLC Control Number, you will notice a
change when the OCLC Control Number 1 billion is reached. Sample files are
now available for use in testing your systems.  

 

What action should you take?

If you use and/or store OCLC MARC bibliographic records and the OCLC Control
Number, you will notice a change when the OCLC Control Number 1 billion is
reached sometime after July 1, 2013. You will need to check the systems at
your institution that use OCLC MARC bibliographic records and the OCLC
Control Number. You may need to implement changes to ensure those systems
will be able to successfully handle the longer OCLC Control Number. OCLC
recommends that you ensure your systems are ready effective July 1, 2013.

 

Sample files now available for testing

We have made sample files available for use in testing your systems. The
files contain sample MARC bibliographic records with expanded OCLC Control
Numbers, and are available for download on the OCLC Control Number expansion
website
<http://www.oclc.org/batchload/controlnumber/number-expansion.en.html>
(http://www.oclc.org/batchload/controlnumber/number-expansion.en.html).

 

Library staff who may need to be aware of this change include:

.         Cataloging and IT librarians who download OCLC MARC bibliographic
records to the library's local system

.         Resource sharing librarians who use third-party ILL management
programs that store or use the OCLC Control Number for searching

.         Reference services librarians who use WorldCat Local to help
patrons locate items. 

 

Publishers, vendors and others that partner with OCLC who may need to be
aware of this change include:  

.         Integrated Library Service (ILS) vendors that use OCLC MARC
bibliographic records to test compatibility with OCLC     

.         Publishers, material suppliers and electronic content providers
that use OCLC MARC bibliographic records in their systems  

.         Developers who maintain services that use the OCLC Control Number.

 

Format of the OCLC Control Number

The OCLC Control Number resides in the MARC 001 field and may also be stored
in other fields. The OCLC Control Number in the 001 field is formatted as
follows: 

 

OCLC Control Numbers 1 through 99999999:

.         "ocm" prefix 

.         oclc control number, 8 digits, right-justified with leading zeros 

.         A blank space as the last character
Example: ocm00012345 

 

OCLC Control Numbers 100000000 to 999999999:

.         "ocn" prefix 

.         oclc control number, 9 digits
Example: ocn123456789 

 

OCLC Control Numbers 1000000000 and higher:

.         "on" prefix 

.         oclc control number, 10 or more digits
Example: on1234567890 or on1234567890123 

 

In the 035 field, the OCLC Control Number is usually stored with the prefix
(OCoLC) and without the "ocm," "ocn" or "on" prefixes; for example:
(OCoLC)1234567890.

 

When this change takes place

The "on" prefix will be used to identify OCLC Control Numbers that contain
ten or more digits. Eight- and nine-digit OCLC Control Numbers will continue
to use the "ocn" or "ocm" prefix as described above. The update to the OCLC
Control Number is backward-compatible so that previously defined OCLC
Control Numbers will not be impacted. Previously assigned OCLC Control
Numbers will continue to work as before.

 

For more information

Additional technical information and sample files for downloading are
available on the OCLC Control Number expansion website
<http://www.oclc.org/batchload/controlnumber/number-expansion.en.html>
(http://www.oclc.org/batchload/controlnumber/number-expansion.en.html).
Please visit the Web <http://www.oclc.org/batchload/controlnumber.en.html>
(http://www.oclc.org/batchload/controlnumber.en.html) to learn how OCLC
Control Numbers are created and how OCLC Batchload services give libraries
the ability to match, merge, format and synchronize OCLC Control Numbers
between their local systems and WorldCat. To see new OCLC Control Numbers
when they are assigned, visit Watch WorldCat Grow
<http://www.oclc.org/worldcat/newgrow.htm>
(http://www.oclc.org/worldcat/newgrow.htm). If you have questions, please
contact us at support at oclc.org or 1-800-848-5800 (USA) or 1-614-793-8682.

 

 

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