Profile Guide Step 2.2 - Revision history

Jeremy at 17:31, 9 December 2010

2010-12-09T17:31:22Z

WikiSysop at 17:17, 30 October 2008

2008-10-30T17:17:25Z

WikiSysop: Protected "Profile Guide Step 2.2" [edit=sysop:move=sysop] [cascading]

2008-08-12T16:22:16Z

Protected "Profile Guide Step 2.2" [edit=sysop:move=sysop] [cascading]

Nate at 16:21, 8 August 2008

2008-08-08T16:21:21Z

Show changes

WikiSysop at 16:24, 6 August 2008

2008-08-06T16:24:01Z

WikiSysop at 16:23, 6 August 2008

2008-08-06T16:23:38Z

WikiSysop: /* Links */

2008-08-06T16:21:23Z

‎Links

WikiSysop: New page: == Step 2.2 Question == Image:2-2.png
=== Numeric Field Validation === MARC fields that are incorrectly formatted often cause user searches to fail and prevent items in the collec...

2008-08-06T16:20:11Z

New page: == Step 2.2 Question == Image:2-2.png === Numeric Field Validation === MARC fields that are incorrectly formatted often cause user searches to fail and prevent items in the collec...

New page

== Step 2.2 Question ==
[[Image:2-2.png]] 

=== Numeric Field Validation ===
MARC fields that are incorrectly formatted often cause user searches to fail and prevent items in the collection from being included in the system indexes. MARS 2.0 software can validate the structure of numeric data in the following fields:<ul><li>010: Library of Congress Control Number (LCCN)<li>020: International Standard Book Number (ISBN)<li>022: International Standard Serial Number (ISSN)<li>034: Coded Cartographic Mathematic Data (CCMD)</ul>

=== Historical Fact ===
LC changed the structure of the LCCN beginning on Jan. 1, 2001 in order to accommodate a four-digit year. The length of the control number remains 12 characters as it was prior to the change. However, in the old LCCN structure (A), suffixes were occasionally used. Under the new LCCN structure (B), the location of elements is slightly altered to accommodate a four-digit year. Under both structures, the prefix, year and serial number are the basic elements required to make a LCCN unique.

Please indicate on Step 2.2 what kind of validation you would like performed on your 010, 020, 022 or 034 fields. Choosing “Yes, With these modifications” means that you would like the MARS 2.0 software to perform a modified validation (e.g., validate fields 020 and 022, but not fields 010 or 034).

=== Pre-2001 LCCN ===
LCCN Structure A (2000 and earlier) numbers are formatted according to the following 6 divisions (separated by hyphens): 
[[Image:Pre2001lccn.png]]

<ol><li>3-character prefix with lowercase letters and/or blanks<li>2 digits, usually the last 2 digits of the year<li>6-digit serial number, with zeroes padded to the left to make 6 digits<li>Blank space<li>Optional variable length suffix and/or alphabetic identifier<li>Optional revision date</ol> 

Examples of LCCN Structure A (the character # represents a single space): 
[[Image:pre2001lccn2.png]] 

== Links ==
[[Profile Guide Chapter 2 | Return to Chapter 2 Contents]]

[[Profile Guide Chapter 2.1 | Go to the Previous Section]]

[[Profile Guide Chapter 2.3 | Go to the Next Section]]

@@ Line 63: / Line 63: @@
   	Original:  nb#95-516543			Corrected to:	nb#95156543#
 *If the 010 field data has been modified, the 010 field length is recalculated and the 010 directory entry is updated. The record length is recalculated and updated in the record leader.
-*If MARS 2.0 programs cannot correct the format of the LCCN in the 010 subfield $a (e.g., there are 4 characters in the prefix or there are 9 digits), the 010 subfield $a code is changed to $z and a report can be generated. See report R50 on page 5:25 for more information about this report.
+*If MARS 2.0 programs cannot correct the format of the LCCN in the 010 subfield $a (e.g., there are 4 characters in the prefix or there are 9 digits), the 010 subfield $a code is changed to $z and a report can be generated. See report R50 in step 5 for more information about this report.
 *The following invalid LCCN prefixes are corrected to the valid format (# = blank):
   	#a#		->		a##
@@ Line 79: / Line 79: @@
   	Original:  n2005-256543		Corrected to:	n#2005256543
   	Original:  nb2005-256543	Corrected to:	nb2005256543
-*If a hyphen or blank space appears in the 010 subfield #a, MARS 2.0 programs count the number of digits following the hypen. If there are fewer than 6 digits, zeroes are added following the first 4 digits (####-) of the LCCN to make 6 digits (for a total of 10 digits). The hyphen is deleted from the LCCN:
+*If a hyphen or blank space appears in the 010 subfield $a, MARS 2.0 programs count the number of digits following the hypen. If there are fewer than 6 digits, zeroes are added following the first 4 digits (####-) of the LCCN to make 6 digits (for a total of 10 digits). The hyphen is deleted from the LCCN:
   	Original:  nb2005-6543		Corrected to:	nb2005006543
 *If the 010 field data has been modified, the 010 field length is recalculated and the 010 directory entry is updated. The record length is recalculated and updated in the record leader.
-*If MARS 2.0 programs cannot correct the format of the LCCN in the 010 subfield $a (e.g., there are 4 characters in the prefix or there are 9 digits), the 010 subfield $a code is changed to $z and a report can be generated. See report R50 in Step 5 for more information about this report.
+*If MARS 2.0 programs cannot correct the format of the LCCN in the 010 subfield $a (e.g., there are 3 characters in the prefix or there are 11 digits), the 010 subfield $a code is changed to $z and a report can be generated. See report R50 in Step 5 for more information about this report.
 *The following invalid LCCN prefixes are corrected to the valid format (# = blank):
   	#a		->		a#

← Older revision		Revision as of 17:17, 30 October 2008
Line 179:		Line 179:

	[[Profile Guide Step 2.3 \| Go to the Next Section]]		[[Profile Guide Step 2.3 \| Go to the Next Section]]
		+
		+	[[category:Profile Guide]]

@@ Line 18: / Line 18: @@
 Examples of LCCN Structure A (the character # represents a single space):<br>
 [[Image:pre2001lccn2.png]]<br>
 == Links ==

← Older revision	Revision as of 16:22, 12 August 2008
(No difference)

@@ Line 2: / Line 2: @@
 [[Image:2-2.png]]<br>
-=== Numeric Field Validation ===
+== Numeric Field Validation ==
 MARC fields that are incorrectly formatted often cause user searches to fail and prevent items in the collection from being included in the system indexes. MARS 2.0 software can validate the structure of numeric data in the following fields:<ul><li>010:  Library of Congress Control Number (LCCN)<li>020:  International Standard Book Number (ISBN)<li>022:  International Standard Serial Number (ISSN)<li>034:  Coded Cartographic Mathematic Data (CCMD)</ul>

@@ Line 22: / Line 22: @@
 [[Profile Guide Chapter 2 | Return to Chapter 2 Contents]]
-[[Profile Guide Chapter 2.1 | Go to the Previous Section]]
+[[Profile Guide Step 2.1 | Go to the Previous Section]]
-[[Profile Guide Chapter 2.3 | Go to the Next Section]]
+[[Profile Guide Step 2.3 | Go to the Next Section]]