The study of taxonomy is ancient and dates back at least to Aristotle, who insisted on exact names for things. Today the term means any extremely disciplined system of categories and tests for inclusion/exclusion, usually resulting in the creation of a strict hierarchy.

in biology

In biology, the term is restricted to the names of species, genus, and larger categories which are ultimately defined as animal, vegetable or mineral.

enables patterns and metaphors

Today, extremely fine-grained taxonomies and hierarchy are commonly created in software for databases that track very large numbers of distinct transactions or objects. The study of software patterns, of conceptual metaphors, and of active ontology are all directly relevant to the creation of new taxonomies.

OP taxonomy

In open politics itself, the ECG living ontology effort is the most basic source of taxonomy. It differentiates policy that is imposed outside the organization with process that is followed inside it, and differentiates control of machinery from command of human beings. Accordingly the taxonomy breaks down as:

The commit verb is a special type of human command verb and process term that is specially tracked, as in an OP:plan.