In knowledge representation, particularly in the Semantic Web, a metaclass is a class whose instances can themselves be classes. Similar to their role...

In knowledge representation, a class is a collection of individuals or individuals objects. A class can be defined either by extension (specifying members)...

The Web Ontology Language (OWL) is a family of knowledge representation languages for authoring ontologies. Ontologies are a formal way to describe taxonomies...

example, SpamClass() or EggsClass()); the classes are instances of the metaclass type (which is an instance of itself), thereby allowing metaprogramming...

subclassing. A class has a constructor and a destructor. A class has a metaclass. A class has zero or more method modifiers. These modifiers can apply...