RDFTripletten

RDFTripletten, in many contexts simply RDF-triples, are the fundamental data units of the Resource Description Framework (RDF). Each RDFTripletten encodes a single fact about a resource and forms the edges of a graph that describes data about resources on the Web or in closed systems.

A triple consists of three parts: a subject, a predicate, and an object. The subject is typically an IRI or a blank node identifying the resource being described. The predicate is an IRI that denotes the relationship or property. The object is an IRI, a blank node, or a literal value such as a string or number. Multiple triples can be combined to form an RDF graph.

RDF triples can be serialized in different formats, including RDF/XML, Turtle, N-Triples, and JSON-LD. They are stored in triplestores or graph databases and can be named graphs to group subsets of triples.

Querying and reasoning: SPARQL is the standard query language used to retrieve patterns of RDFTripletten and to perform joins, filters, and graph pattern matching. Reasoning over RDF graphs using RDFS or OWL can infer additional triples, expanding the available knowledge.

Applications include data integration, knowledge graphs, metadata management, and the interlinking of open data. While RDFTripletten enable flexible data representation, challenges include vocabulary alignment, data quality, scalability, and governance of provenance.