Moving Measurement to PropertyValue
While addressing Issue #7, I noticed that, given the patterns provided in TS 103 548 and the updated definitions provided in SAREF Core v4.1.1, the `Measurement` concept is deprecated.
Hence, I suppose that the deprecation of all usages of the `Measurement` concept should be propagated to all extensions and replaced with the adoption of the `PropertyValue` concept as shown in Clauses 5.2.2.2 and 5.6.4 of TS 103 548.
However, there are a couple of aspects that made me doubtful about how to proceed.
Let me use this example, the definition of the `VibrationIsolator` concept:
```
s4bldg:VibrationIsolator rdf:type owl:Class ;
rdfs:subClassOf saref:Device ,
[ rdf:type owl:Restriction ;
owl:onProperty s4bldg:height ;
owl:allValuesFrom saref:Measurement
] ,
[ rdf:type owl:Restriction ;
owl:onProperty s4bldg:isolatorCompressibility ;
owl:allValuesFrom saref:Measurement
] ,
[ rdf:type owl:Restriction ;
owl:onProperty s4bldg:isolatorStaticDeflection ;
owl:allValuesFrom saref:Measurement
] ,
[ rdf:type owl:Restriction ;
owl:onProperty s4bldg:supportedWeightMax ;
owl:allValuesFrom saref:Measurement
] ,
[ rdf:type owl:Restriction ;
owl:onProperty s4bldg:vibrationTransmissibility ;
owl:allValuesFrom saref:Measurement
] ;
[the labels and comments are omitted]
```
Since the concept `Measurement` is deprecated in favor of the adoption of the `PropertyValue` one, my doubts, after checking also the TS 103 548, are the following.
Doubt 1:
Is it enough to replace `saref:Measurement` with `saref:PropertyValue` in the concepts' definition like the one shown above?
I guess that the answer is **No** because in this case, we should also re-define the properties (e.g., `supportedWeightMax` as a subclass of `hasPropertyValue`, but this operation is forbidden due to what is explained in Clause 5.6.5 of TS 103 548.
Doubt 2:
Is it necessary to define subclasses of `saref:PropertyValue` by starting from the property names like the ones shown above?
This means that, for example, the block with `supportedWeightMax` would be updated as follows:
```
[ rdf:type owl:Restriction ;
owl:onProperty saref:hasPropertyValue ;
owl:allValuesFrom s4bldg:supportedWeightMax
] ,
```
where `s4bldg:supportedWeightMax` would be a subclass of `saref:PropertyValue`.
Probably, this second option is the more correct.
Please let me know what do you think.
issue