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resources:cerl_thesaurus:editing:format:831 [2016/06/09 11:52] – [Application of Content Designators] liventsovaresources:cerl_thesaurus:editing:format:831 [2017/07/17 16:39] – [Examples] jahnke
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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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