OPS.11.1:4.1 - Fix the receiving result and the proposed change

State what the recipient must obtain and which event makes it available. For an order, this may require accepted components, transport and permission to use the result. For a machine service, it may be restored operation. Use the completion condition of the present service.

Name the alternative under consideration: another release time, a different allocation, a larger transfer batch, changed routing or another operating method. Identify the quantities that would make the alternative preferable and any conditions it must preserve. OPS.1 supplies the operating focus and OPS.19 the wider reconciliation when several results govern the choice.

Retain the difference between a fixed input and a decision variable. If a contractor’s two-day turnaround is a commitment that cannot change, the present model can use it as an input. If the proposal changes how that contractor is used, recover the response to that change rather than assuming the same turnaround.