Feedback : is data about the performance of a system .For example data about sales
performance is feedback to a sale manager .
Control : involves monitoring and evaluating feedback to determine whether a system
is moving toward the achievement of its goal . The control function then makes necessary
adjustments to a system’s input and processing components to ensure that it produces proper
output . For example , a sale manager exercises control when he or she reassigns salespersons
to new sales territories after evaluating feedback about their sales performance .