Delivery in full and on time [DIFOT] combines both the completeness of the order and the timeliness of the delivery. A multidimensional measure of supplier performance, it is calculated by multiplying the in-full rate by the on-time rate [both as percentages]. For example, if a buyer places three orders each for 500 units and the first order is delivered with one delivery of 250 by the due date and a further delivery of 250 a week later, the second order is delivered with 500 by the due date, and the third order is delivered with a delivery of 50 by the due date and a second delivery of 450 a week later, then the actual DIFOT by order is 11%, being 33% x 33%..