Controlling is a process that measures performance and ensures desired results are achieved by taking corrective action. There are three types of controls: feedforward, concurrent, and feedback controls. The control process has four steps - establish objectives and standards, measure performance results, compare results to objectives, and take corrective action. Objectives and standards are set in step one. Performance is measured against the standards in step two. Step three involves comparing actual results to objectives to identify needs for action. In step four, corrective actions are taken to address problems or opportunities. Common control techniques include employee discipline systems, project management, Gantt charts, CPM/PERT, and financial controls like liquidity, leverage, asset management,