IRI for STIX vocabulary values?

[peternowee]

Hi,

More a support question, but perhaps a feature request:

I am looking for an IRI to use instead of a string when referring to STIX vocabulary values.

For example, if I want to refer to the value organizational-gain from the Attack Motivation Vocabulary attack-motivation-ov as defined in stix/vocabularies/vocabularies.owl:

<owl:NamedIndividual rdf:about="&stix;_Organizational-gain-amov">
    <rdf:type rdf:resource="&stix;AttackMotivationOv"/>
</owl:NamedIndividual>

Now if I have this example triple...

@prefix example: <http://example/ns/> .
@prefix stix: <http://docs.oasis-open.org/cti/ns/stix#> .
example:intrusion-set--9e759eb6-d189-11ee-bcf6-4761ad7c56c4 a stix:StixObject ;
    stix:primary_motivation "organizational-gain" .

Can I replace that last line with the following?

    stix:primary_motivation stix:_Organizational-gain-amov .

The underscore at the start (_Organizational-gain-amov) gives the impression that it is for internal use only. I know it is used "internally" in the SWRL rules in threat-actor.owl and intrusion-set.owl, but can I refer to that IRI directly "externally" as well?

If not, is some other IRI for vocabulary values foreseen, or am I completely misunderstanding? Hope to hear your thoughts. Thanks!

[rhohimer]

@peternowee I'm so sorry for this epic failure. The intension of the underscore at the start of the _Organizational-gain-amov is as a visual clue that it is and instance (owl:NamedIndividual). This is an instance of rdf:type stix:AttackMotivationOv

You have highlighted an error in the current ontology. In the STIX 2.1 Specification, the property of primary_motivation is to be of type string. In the stix ontology (stix.owl), the primary_motivation SHOULD BE an Object Property, not a Data Type Property.

It is my opinion that instances (owl:NamedIndividual) should have as a datatype property their STIX 2.1 Specification string value.
Allowing the triple:
stix:_Organizational-gain-amov stix:has-specification-string "organizational-gain"^^xsd:string

If you are still interested, and looking at this, I am available to discuss further. In the meantime, I will correct the error in the current ontology. If I can, I will implement a use case to illustrate the use of the vocabularies.

[peternowee]

Hi @rhohimer, thank you for your reply. I am not well-versed in OWL and STIX enough to comment on the current ontology being correct or not. Do you mean that for STIX vocabulary values there will not be any IRIs, and only strings can be used?

@prefix example: <http://example/ns/> .
@prefix stix: <http://docs.oasis-open.org/cti/ns/stix#> .
example:intrusion-set--9e759eb6-d189-11ee-bcf6-4761ad7c56c4 a stix:StixObject ;
    stix:primary_motivation "organizational-gain" .