Controlling is a management function that involves monitoring performance, comparing results to objectives and standards, and taking corrective action. It aims to ensure the organization achieves its goals. The control process involves establishing objectives and standards, measuring actual performance, comparing results, and taking necessary actions. Controls can be preliminary, concurrent, or postaction. Managers use internal controls that rely on self-control and external controls involving direct supervision. Organizations implement control systems through various management processes, compensation, employee discipline, information, operations management, and quality control.