Banwari Lal is a cloth merchant in arol Bagh. His grandsons are requesting him to let them diversify the business into bridal wear. Banwari Lal has agreed but on the condition that they will follow the function of management he has always followed, which helps an organisation in keeping track of the progress of activities and ensures that the activities conform to the standards set in advance so that the organisational goals are achieved. Name the function of management which Banwari Lal is asking his grandsons to follow. List any two reasons why it is considered an indiSQPensable function of management.