The categorical databases formalism is also known as 'sketches'. For example, here are some slides from NASA et al that connect to David's work but use this al

The categorical databases formalism is also known as 'sketches'. For example, here are some slides from NASA et al that connect to David's work but use this alternative phrasing. It shows how to use category theory to 'align' ontologies, with an example about voting. https://www.nasa.gov/sites/default/files/ivv_wojtowicz_sketch_theory_as_a_framework_for_knowledge_management_090214.pdf https://www.nasa.gov/sites/default/files/ivv_wojtowicz_sketc...