Dupuy's main contribution to military operation analysis is the assessment method Quantified Judgment Method or QJM, where the outcome of a battle is predicted using a fairly complicated multiplicative-additive formula in which various factors relating to the strength and firepower of the fighting parties as well as the circumstances are taken into account.
Dupuy's most significant contribution to military operations analysis is the development of the Quantified Judgment Method (QJM), which predicts the outcome of battles using a complex formula that incorporates various factors like the relative strength and firepower of the opposing forces, as well as the specific circumstances of the conflict.