In an ideal world, one round of process redesign would result in a nearly perfect process and appropriate goals and measures. Thereafter, managers would simply fine-tune the process by studying outputs and taking corrective action whenever necessary. In reality, of course, one round of process redesign improves the process, but leaves some problems that still need to be changed. Moreover, as time passes and employees change, new techniques are introduced, or as customer expectations increase, processes need to be further refined.