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resources:cerl_thesaurus:editing:format:831 [2016/06/09 11:52]
liventsova [Application of Content Designators]
resources:cerl_thesaurus:editing:format:831 [2017/07/17 16:39]
jahnke [Examples]
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-====== 831 Duplicate control field ======+====== 831 Duplicate control field (O;R) ======
  
- 
-==== Do not edit this field manually! ==== 
- 
- 
- 
-\\ 
-<block tableinvisible>​ 
-|  **Mandatory:​** |-| 
-|  **Repeatable:​**|-| 
-|  **Related fields:** |[[801|801]]| 
-</​block>​ 
-\\ 
  
 ==== Field Definition and Scope ==== ==== Field Definition and Scope ====
  
-This field is used for database updating purposes only. It shall not be displayed in the WWW interface, nor shall its content be edited by a cataloguer. It is entirely created only by programme and will be deleted by the database system after the indicated action has taken place.+This field is used for database updating purposes only. It shall not be displayed in the WWW interface, nor shall its content be edited by a cataloguer. ​
  
  
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 === Subfields === === Subfields ===
  
-**$8 Language code (O;​NR)**\\ +<del>**$8 Language code (O;​NR)**\\ 
-Mandatory to precede the $n subfield. A three letter language code from the Marc Code List for Languages.+Mandatory to precede the $n subfield. A three letter language code from the Marc Code List for Languages.</​del>​
  
 **$a Record Identifier (M;NR)**\\ **$a Record Identifier (M;NR)**\\
 Record ID of the record considered duplicate Record ID of the record considered duplicate
  
-**$b Number of matches ​(A;NR)**\\ +**$b Similarity ​(O;NR)**\\ 
-Number of identical forms or other data detected by a checking routine. +<del>Number of identical forms or other data detected by a checking routine. 
-The number of matches should be understood as an indication of the similarity of the two records.+The number of matches should be understood as an indication of the similarity of the two records.</​del>​ Any similarity measure, suitable to support the decision whether the two records should be merged or not
  
-**$n Cataloguer'​s note (O;NR)**\\  +<del>**$n Cataloguer'​s note (O;NR)**\\  
-A short description of the duplicate checking which took place.+A short description of the duplicate checking which took place.</​del>​
  
-**$z Original Authority File (A;​NR)**\\ +<del>**$z Original Authority File (A;​NR)**\\ 
-Indicates the Authority File from which the record was taken originally.+Indicates the Authority File from which the record was taken originally.</​del>​
  
 ==== Input Conventions ==== ==== Input Conventions ====
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 ==== Examples ==== ==== Examples ====
  
-  - 831 #​1$acnp00081480$b1$zNeNKHB$8ger$nDatensatz möglicherweise dublett ​(Übereinstimmung in Namensform).+  - 831 #​1$acnp00081480$b0.5 
 + 
 +==== Internal Representation ==== 
 +<code javascript>​ 
 +{"​meta":​ { 
 +    "​distinctFrom":​ ["​Record ID ($a)"​],​ 
 +    "​sameAs":​ ["​Record ID ($a)"​],​ 
 +    "​possibleMatch":​ [{ 
 +        "​id":​ "​Record ID ($a)", 
 +        "​similarity":​ "​Similarity ​($b)
 +    }] 
 +}} 
 +</​code>​ 
 + 
 +==== Change History ==== 
 +  * //17.07.2017//: Subfields $8, $n and $z are no longer supported, once the CT has been migrated into its new environment
 resources/cerl_thesaurus/editing/format/831.txt · Last modified: 2020/01/22 18:49 by jahnke

 

 

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