A quick two minutes infographics on the three basic types of knowledge models and their use cases.

Though many people use the terms taxonomy, ontology and thesaurus interchangeably, the intensity of the semantic context is very different ranging from low, high to medium. Also, users need to be clear whether they need a taxonomy, a thesaurus or an ontology, depending on their specific use case — which could be content navigation, indexing & information retrieval or knowledge management and discovery.

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