Combat Formulas

What are these DV variables and where can I find them? There’s a lot of them, such as: offensiveAbilityDV, magicalDamageDV, pierceDamageDV, etc. Anyone know what these are? The formulas are from the file ‘records/game/combatformulas.dbr’.

Edit: I think I came to the conclusion that any DV variable is a parameter to the equation. Can anyone confirm?