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The example above describes a person, based on the FOAF (friend of a friend) ontology. First, the two JSON properties name and homepage and the type Person are mapped to concepts in the FOAF vocabulary and the value of the homepage property is specified to be of the type @id .
Metalog combines querying with reasoning and has an English like syntax. Algae is a query language developed by the W3C that adds reactive rules, [10] also called actions, that determine for instance whether an Algae expression is a data query or a data update. Other examples of RDF Query languages include RDFDBQL. [11]
The PROV standard defines a data model, serializations, and definitions to support the interchange of provenance information on the Web. [1] Here provenance includes all "information about entities, activities, and people involved in producing a piece of data or thing, which can be used to form assessments about its quality, reliability or trustworthiness".
[36] [37] For example, a statement can be associated with a context, named by a URI, in order to assert an "is true in" relationship. As another example, it is sometimes convenient to group statements by their source, which can be identified by a URI, such as the URI of a particular RDF/XML document.
XSLT 3.0: became a W3C Recommendation on 8 June 2017. The main new features are: [ 14 ] Streaming transformations : in previous versions the entire input document had to be read into memory before it could be processed, [ 15 ] and output could not be written until processing had finished.
The property definition, for example, should contain a full description of the subject resource. More specific note types can be defined in a SKOS extension, if desired. A query for <A> skos:note ? will obtain all the notes about <A>, including definitions, examples, and scope, history and change, and editorial documentation.
The principal standardization of the DOM was handled by the World Wide Web Consortium (W3C), which last developed a recommendation in 2004. WHATWG took over the development of the standard, publishing it as a living document. The W3C now publishes stable snapshots of the WHATWG standard. In HTML DOM (Document Object Model), every element is a ...
A typical example of an rdfs:Class is foaf:Person in the Friend of a Friend vocabulary. [8] An instance of foaf:Person is a resource that is linked to the class foaf:Person using the rdf:type property , such as in the following formal expression of the natural-language sentence: 'John is a Person'.