Ontology

Philosophy of existence

Ontology is the branch of philosophy concerned with the nature of being and existence—what kinds of things exist and how they relate to each other.

In computing and information science, an ontology is a formal framework defining categories, properties, and relationships within a domain: The database uses an ontology to classify species.

The philosophical and technical senses share a concern with how we organize reality into meaningful categories.

philosophical

metaphysics

Philosophy of existence's nature

categories · Aristotle · universals · particulars · identity · properties · relations · causation · modality · phenomenology

informatics

semantic web

Network of related meanings

  • taxonomyScience of categorical arrangement
  • schemaOrganized representational structure
  • classesInstructional sessions or groupings

entities · relationships · hierarchy · OWL · inference · reasoning · metadata · triples · nodes · edges

classification

categorization

Arranging into groups

framework · structure · organization · domain · classes · subclasses · parent · child · inheritance · tree

semantic

meaning

What something signifies

vocabulary · glossary · thesaurus · synonymy · lexicon · terminology · conceptual · signification · denotation · reference

Opposites
philosophical branch

Ontologyepistemology

Theory of knowledge

phenomenology · axiology · empiricism · pragmatism · methodology

being vs. non-being

Ontologynothingness

Complete absence of existence

nihility · void · absence · nullity · emptiness

reality vs. unreality

Ontologyunreality

Quality of being imaginary

nihilism · nothingness · nonexistence · illusion · maya

Family

ontological, ontologically

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