A budget is a detailed plain of operations for some specific future period. It is an estimate prepared in advance of the period to which it applies. It acts as a business barometer as it is complete programmed of activities of the business for the period covered Besides' budgetary control' refers to a system of management and accounting control by which all operations and output are forecast as far as ahead as possible and the actual results, when known are compared with the budget estimates. Thus the term budgetary control is designed to evaluate the performance in terms of goals budgeted.