<xs:complexType name="subjectCT">
<xs:simpleContent>
<xs:extension base="xs:string">
<xs:attribute name="canonical" type="xs:boolean" use="optional"/>
<xs:attribute name="type" type="subjectType" use="optional"/>
<xs:attributeGroup ref="globalWithoutType"/>
</xs:extension>
</xs:simpleContent>
<!-- The type attribute on subjectCT is used to identify the system that specifies the meaning and syntax of the subject element content. A list of some of the better known subject classification systems has been enumerated for this value. Those are: ATLA (American Theological Libraries Association); BILDI (Biblewissenschaftliche Literaturdokumentation Innsbruck); DBC (Dutch Basic Classification); DDC (Dewey Decimal Classification); EUT (Estonian Universal Thesaurus); FGT (Finnish General Thesaurus); LCSH (Library of Congress Subject Heading); MeSH (Medical Subject Headings); NLSH (National Library Subject Headings (National Library of Poland)); RSWK (Regeln für den Schlagwortkatalog); SEARS (Sears List of Subject Headings); SOG (Soggettario); SWD_RSWK (Swiss National Library); UDC (Universal Decimal Classification); and, VAT (Vatican Library). Or, listed without comment, the valid values are: ATLA, BILDI, DBC, DDC, EUT, FGT, LCSH, MeSH, NLSH, RSWK, SEARS, SOG, SWD_RSWK, UDC, VAT. Note that if a system not listed here is used, the value in type must be preceded by "x-", thus: "x-Durusau" as the type for subject from the Durusau System of Universal Subject (a non-existent and never to be built system). -->
</xs:complexType> |