Historically NCI Thesaurus has been published in the OWL 1 format. Within the next few months EVS will switch to the current w3 standard OWL format known as OWL2 (https://www.w3.org/OWL/).
Changes:
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Most data type specifications have been removed.
owl 1
Blood
owl 2
Blood
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Annotation properties with a rdfs:Range of owl:DataRange have now been adjusted to now have a rdfs:Range of a separate resource of rdfs:Datatype
owl 1
Acquired Abnormality
owl 2
…
…
Acquired Abnormality
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Associations have changed from owl:ObjectProperty with rdf:type owl:AnnotationProperty to owl:AnnotationProperty with rdfs:Range of anyURI
owl 1
owl 2
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Embedded XML Qualifiers have become annotations on annotations. The properties being annotated are no longer specified as rdf:parseType=“Literal”
owl 1
BLOODPTCDISC
owl 2
BLOOD
BLOOD
PT
CDISC
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