What is Procedural knowledge?

Procedural knowledge is the knowledge exercised in the performance of some task. Unlike descriptive knowledge , which involves knowledge of specific facts or propositions , procedural knowledge involves one's ability to do something. A person doesn't need to be able to verbally articulate their procedural knowledge in order for it to count as knowledge, since procedural knowledge requires only knowing how to correctly perform an action or exercise a skill.

The term "procedural knowledge" has narrower but related technical uses in both cognitive psychology and intellectual property law.