Differential Piece Rate defines a method of wage payment in which after tests have set a standard time for any task assigned the worker gets a high piece rate for completing the job within the allotted time and lower piece rate for completing the job beyond the allotted time.
F.W. Taylor has given a differential piece rate method.
Functional Foremanship is a technique which is used in factory management for doing the work in different ways.
F.W. Taylor has given functional foremanship technique.
Final Answer :
Differential Piece Rate is a method which for wage payment and functional foremanship is a technique which is used in factories for management .