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Namespace Prefixes

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Statements

Subject Item
n16:_A_Content_Standard
dbo:wikiPageWikiLink
dbr:Schema_crosswalk
Subject Item
dbr:LIDO
dbo:wikiPageWikiLink
dbr:Schema_crosswalk
Subject Item
dbr:Crosswalk_(disambiguation)
dbo:wikiPageWikiLink
dbr:Schema_crosswalk
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dbr:Schema_crosswalk
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dbo:wikiPageWikiLink
dbr:Schema_crosswalk
Subject Item
dbr:Schema_crosswalk
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dbo:Work
rdfs:label
Schema crosswalk
rdfs:comment
A schema crosswalk is a table that shows equivalent elements (or "fields") in more than one database schema. It maps the elements in one schema to the equivalent elements in another. Crosswalk tables are often employed within or in parallel to enterprise systems, especially when multiple systems are interfaced or when the system includes legacy system data. In the context of Interfaces, they function as an internal Extract, Transform, Load (ETL) mechanism. For example, this is a metadata crosswalk from MARC standards to Dublin Core:
dcterms:subject
dbc:Metadata dbc:Knowledge_representation dbc:Technical_communication dbc:Library_cataloging_and_classification dbc:Data_management
dbo:wikiPageID
18048026
dbo:wikiPageRevisionID
1109420842
dbo:wikiPageWikiLink
dbr:Data_mapping dbr:MARC_standards dbr:Text_Encoding_Initiative dbr:Database_schema dbc:Metadata dbc:Knowledge_representation dbc:Technical_communication dbc:Library_cataloging_and_classification dbr:Database dbr:Enterprise_systems dbr:Metadata dbr:Metadata_Object_Description_Schema dbr:Extract,_Transform,_Load dbr:Dublin_Core dbc:Data_management dbr:Legacy_system dbr:Meta_element dbr:Semantic_mapper
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A schema crosswalk is a table that shows equivalent elements (or "fields") in more than one database schema. It maps the elements in one schema to the equivalent elements in another. Crosswalk tables are often employed within or in parallel to enterprise systems, especially when multiple systems are interfaced or when the system includes legacy system data. In the context of Interfaces, they function as an internal Extract, Transform, Load (ETL) mechanism. For example, this is a metadata crosswalk from MARC standards to Dublin Core: Crosswalks show people where to put the data from one scheme into a different scheme. They are often used by libraries, archives, museums, and other cultural institutions to translate data to or from MARC standards, Dublin Core, Text Encoding Initiative (TEI), and other metadata schemes. For example, an archive has a MARC record in its catalog describing a manuscript. Suppose the archive makes a digital copy of that manuscript and wants to display it on the web along with the information from the catalog. In that case, it will have to translate the data from the MARC catalog record into a different format, such as Metadata Object Description Schema, that is viewable on a webpage. Because MARC has various fields than MODS, decisions must be made about where to put the data into MODS. This type of "translating" from one format to another is often called "metadata mapping" or "field mapping," and is related to "data mapping", and "semantic mapping". Crosswalks also have several technical capabilities. They help databases using different metadata schemes to share information. They help metadata harvesters create union catalogs. They enable search engines to search multiple databases simultaneously with a single query.
gold:hypernym
dbr:Table
prov:wasDerivedFrom
wikipedia-en:Schema_crosswalk?oldid=1109420842&ns=0
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6658
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wikipedia-en:Schema_crosswalk
Subject Item
dbr:Schema_matching
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dbr:Schema_crosswalk
Subject Item
dbr:Crosswalk_(metadata)
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Subject Item
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dbr:Schema_crosswalk