[TacticalCoder]

> "ISO 8583: The language of credit cards"

"ISO 8583: The language of both debit and credit cards"

[lxgr]

And sometimes even bank transfers (I believe at least FPS in the UK used it, or possibly still does).

Also don't forget about prepaid cards, charge cards etc., depending on where they exist in your personal ontology of card funding methods ;)