Controlling is an important function of management that involves measuring actual performance against standards, identifying any deviations, analyzing the causes of deviations, and taking corrective actions. The controlling process consists of setting standards, measuring performance, comparing actual performance to standards, analyzing deviations, and taking corrective actions. Standards can be set both quantitatively and qualitatively and should be specific, flexible, and allow for an acceptable range of deviations. Controlling helps management identify problems and formulate improved future plans.