Process improvement can be defined as the actual improvement of a process—the efficiency and effectiveness of its inputs and the quality of its outputs. A process is any task that needs to be done, and includes all the steps and decisions involved in completing that task. Process improvement involves an actual “improving” of the way a task is completed. Rather than simply managing crises effectively, process improvement involves actually “improving” the functions of the task so that the operation is more efficient and crises are better prevented. In order to improve a process, it is first necessary to dissect the causes behind the “crises.” This knowledge is then used to reduce variation within the process and remove “waste” activities, meaning those that contribute no value. A variety of factors are examined in process improvement, including the materials, the methods, the machines, and the people who actually do the work. Process improvement provides several benefits to the company. It promotes teamwork through a common goal, improves customer service through a reduction in defects, and reduces overhead costs.