First Order Wins/Second Order Wins/Third Order Wins

[BrewCrewRising]

Can somebody explain to me what first, second, and third order wins are? Who came up with these terms, how are they determined, and why they are called "First" "Second" and "Third" order wins? (What is the reason behind the nomenclature?)

[Team Canada]

At the bottom of BP's adjusted standings page they have a brief explanation of each one.