Application of Eco-efficiency factor to mobile phone and scanner

The concept of Eco-efficiency, coupling with the stimulation of services and the effort of environmental load reductions, is beneficial to indicate the state of IT-products, where developments are extremely rapid. This paper shows two comprehensive case studies, mobile phones and scanners, especially focusing on how to quantify the service values. As a result, the service value of the mobile phones increases 2.50 in one and a half years, with the Eco-efficiency factor as 2.07. Also, the service value of the scanners goes up 2.47, with the Eco-efficiency Factor as 2.13 in two years. In addition, utilizing core hardware specifications is proposed when quantifying the service value of multi-functional products, such as personal computers, PDAs and mobile phones. Core hardware evaluation enables us to quantify the service value of multi-functional products, where the availability and perception of services differ from person to person. Beyond that, core hardware evaluation allows us to correspond to new unexpected product functions in the future. In contrast, uni-functional products such as scanners in this case study can be evaluated as their product functions that customers perceive.