Marc21 Schema version 1.0

Marc21 Schema version 1.0

Notation and color conventions of this schema representation:

a choice: [x y z] ; a sequence: (x y z) ; (* x,y) is the same as the dtd-like notation (x,y)*

Colours used: {type declarations}; element names attribute names ; restriction/extension facets; {links to type definitions}; comments;

an extension of a type is {<<type>>} ; and a restriction to it : {>>type<<}

Imported schemata:

http://www.w3.org/2001/03/xml.xsd from namespace http://www.w3.org/XML/1998/namespace

Global Elements in main module

<collection> {collectionType} collection is a top level container element for 0 or many records

<record> {recordType} record is a top level container element for all of the field elements which compose the record

Global Types in main module

collectionType :
- (*
  - {record}
  )
- id : {idDataType}

controlDataType :
- >> {xsd:string}<<

controlFieldType : MARC21 Fields 001-009
- << {controlDataType} >>
  - id : {idDataType}
  - tag : {controltagDataType}

controltagDataType :
- >> {xsd:string}<<
  pattern:00[1-9A-Za-z]{1}

dataFieldType : MARC21 Variable Data Fields 010-999
- (+
  - <subfield> {subfieldatafieldType}
  )
- id : {idDataType}
- tag : {tagDataType}
- ind1 : {indicatorDataType}
- ind2 : {indicatorDataType}

idDataType :
- >> {xsd:ID}<<

indicatorDataType :
- >> {xsd:string}<<
  pattern:[\da-z ]{1}

leaderDataType :
- >> {xsd:string}<<
  pattern:[\d ]{5}[\dA-Za-z ]{1}[\dA-Za-z]{1}[\dA-Za-z ]{3}(2| )(2| )[\d ]{5}[\dA-Za-z ]{3}(4500| )

leaderFieldType : MARC21 Leader, 24 bytes
- << {leaderDataType} >>
  - id : {idDataType}

recordType :
- (?
  - <leader> {leaderFieldType}
  - <controlfield>* {controlFieldType}
  - <datafield>* {dataFieldType}
  )
- type : {recordTypeType}
- id : {idDataType}

recordTypeType :
- >> {xsd:NMTOKEN}<<
  Authority
  
  Bibliographic
  
  Classification
  
  Community
  
  Holdings

subfieldDataType :
- >> {xsd:string}<<

subfieldatafieldType :
- << {subfieldDataType} >>
  - id : {idDataType}
  - code : {subfieldcodeDataType}

subfieldcodeDataType :
- >> {xsd:string}<<
  pattern:[\da-z!"#$%&'()*+,-./:;<=>?{}_^`~\[\]\\]{1}

tagDataType :
- >> {xsd:string}<<
  pattern:(0([1-9A-Z][0-9A-Z])|0([1-9a-z][0-9a-z]))|(([1-9A-Z][0-9A-Z]{2})|([1-9a-z][0-9a-z]{2}))

Schema viewer developed by Romeo Anghelache, copyleft GNU GPL, 2001, version 1.01