The quality aspect in manufacturing is not gauged, because input and output are measured by quantity units which quality is seemingly the same. The quality in service sector is very important. Customers often evaluate a given service not only by its amount. If only one unit or package of service is purchased, output is mostly gauged only by the quality aspect. Input commonly is gauged both by the quantity and quality aspects. Quantity and quality aspects in the determination of productivity will differ in different spheres of service sector.