This field is implemented through the xsi:type controlled vocabulary extension mechanism. The default vocabulary type is AssetTypeVocab-1.0 in the http://stix.mitre.org/default_vocabularies-1 namespace. This type is defined in the stix_default_vocabularies.xsd file or at the URL http://stix.mitre.org/XMLSchema/default_vocabularies/1.1.1/stix_default_vocabularies.xsd.
Users may also define their own vocabulary using the type extension mechanism, specify a vocabulary name and reference using the attributes, or simply use this as a string field.
| Field Name | Type | Description |
|---|---|---|
| @vocab_nameoptional | string |
The vocab_name field specifies the name of the controlled vocabulary. |
| @vocab_referenceoptional | anyURI |
The vocab_reference field specifies the URI to the location of where the controlled vocabulary is defined, e.g., in an externally located XML schema file. |
| @count_affectedoptional |
This field specifies the number of assets of this type affected. |
