SKOS and ISO11179. just enough semantics?. caveats. SKOS is still in working draft ‘Concept’ = combination of an identifier with either a definition or a term we will need to extend the standard to capture all we want to say about administered item relationships
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SKOS and ISO11179
just enough semantics?
There are several purposes for applying classification to data elements. Classification assists users to find a single data element from among many data elements, facilitates data administration analysis of data elements and, through inheritance, conveys semantic content that is often only incompletely specified by other attributes, such as names and definitions.
The classification schemes accommodated in this part have utility for
those that belong to the Emperor
those that are trained
those that are included in this classification
those that tremble as if they were mad
those drawn with a very fine camel’s hair brush
those that have just broken a flower vase
those that resemble flies from a distance
Source: Jorge Luis Borges, Funes the Memorious via Lincoln D Stein SOFG 2003
for data element semantics
The property rdfs:subClassOf is an instance of rdf:Property that is used to state that all the instances of one class are instances of another.
A triple of the form:
C1 rdfs:subClassOf C2
states that C1 is an instance of rdfs:Class, C2 is an instance of rdfs:Class and C1 is a subclass of C2. The rdfs:subClassOf property is transitive.
The rdfs:domain of rdfs:subClassOf is rdfs:Class. The rdfs:range of rdfs:subClassOf is rdfs:Class
SKOS concept = terminological entry
a skos:concept is an identifier and either a label or a definition
a terminological entry is a name or definition within a language associated with an administration record which contains an identifier
a value meaning is an identifier with a definition
on formal and informal semantics