The main business for airfreight companies is to deliver shipments rapidly, punctually, and with the highest quality possible. Lufthansa has established a delivery accuracy rate of 98%, which means that 98% of all shipments shall ar-rive on time. To date, the SAS
Productivity is an important economic factor which has a key role in evaluating the economic growth. It is identified as the foundation for economic prosperity, a prerequisite for national development and also an important indicator of organizational competitiveness (Dedrick et al., 2003).