1) In operations, the uncommitted portion of a company's inventory and planned production maintained in the master schedule to support customer-order promising. The ATP quantity is the uncommitted inv entory balance in the first period and is normally calculated for each period in which an MPS receipt is scheduled. In the first period, ATP includes on-hand inventory less customer orders that are du e and overdue. Three methods of calculation are used: discrete ATP, cumulative ATP with look-ahead and cumulative ATP without look-ahead. (2) In logistics, the quantity of a finished good that is or w...