In the resource management process, controlling is the essential component that ensures activities are aligned with set goals and objectives. It involves monitoring the tasks that have been implemented to assess their effectiveness. Controlling helps in identifying discrepancies between the expected and actual performance, offering the opportunity for timely adjustments. The process typically includes generating feedback mechanisms to understand why certain outcomes were achieved or not, and adjusting strategies as necessary based on this feedback. Without controlling, the efforts invested into planning, organizing, and implementing may not lead to the desired achievements, diluting the whole management initiative. This section also emphasizes that effective control mechanisms allow for resource optimization, maximizing outputs with minimum inputs.