ocr: The Operational Level Operational planning is normally regarded as having a maximum time horizon of twelve months, although it will also comprise a series of control periods which might be monthly, weekly or even daily. The formal plan of action for the forthcoming year is incorporated into a plan called the master budget and all managers who have responsibility for the. achievement of some part of this master budget can be considered to be operational planning decision-makers. The master budget is established within the fixed parameters set at the two higher planning tiers such as a given set ...