Provide useful information about the thing when its URI is dereferenced, using standard formats such as RDF/XML.Use HTTP URIs so that these things can be referred to and looked up ("dereferenced") by people and user agents.The basic rules for Linked Data are defined as: Linked Data is the data format that supports the Semantic Web. OWL uses this concept of classes heavily, and in that way OWL-based metadata encourages a kind of classified view of information - although there isn't a single classification but many of them, since each metadata ontology can define its own view using classes.ĭublin Core FOAF graph GRDDL literal/non-literal linked data Things in the same class have something(s) in common. If your data rules state that your description can include one and only one title for the resource, that is expressing cardinality.įrom the OWL documentation: "Classes provide an abstraction mechanism for grouping resources with similar characteristics." Think of classes as a grouping, a set, or even something like a genus in biology. This generally refers to the rules for usage of an element that translate roughly to: required, optional, minimum number allowed, maximum number allowed. Informal explanations for the non-expert. ![]() Semantic Web Terminology, informally explained ![]()
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