Connecting the best of both worlds: ontologies and vocabularies in metaphactory

The terms "ontology" and "vocabulary" are often used interchangeably. However, more often than not, this leads to confusion among customers who want to semantically model their domain and results in questions about whether there is in fact a distinction between the two and whether both are needed to implement a knowledge graph.


The meta-layers that these terms describe have been captured by different standards (OWL and SKOS respectively) and we at metaphacts believe that there is value in treating both as individual but complementary assets in their own right.


Already with version 4.4, metaphactory allowed customers to create truly interconnected knowledge graphs by supporting the management of ontologies, vocabularies, and dataset descriptions together with actual instance data. Released in April 2022, metaphactory 4.5 delivered an even tighter integration between ontologies and vocabularies by allowing knowledge graph engineers to link classes in the ontology editor to controlled vocabularies.


In this blog post, we:


  • Demonstrate how interlinking ontologies and vocabularies works in practice by looking at an example where we connect a class from the Nobel Prize ontology to a controlled vocabulary.
  • Build an end-user search interface using metaphactory’s interactive wizards and demonstrate how the vocabulary is reflected in a hierarchical structure in the search facets for more intuitive search and exploration. The hierarchical facets were released in July 2022 with metaphactory 4.6.


Read this blog post to learn about the tight integration between ontologies & vocabularies in metaphactory »