“…However, today, current market realities indicate that service offer is more and more imperative to industrial firms (Furrer, 1997(Furrer, , 1998Gebauer et al, 2005;Mathieu, 2001aMathieu, , 2001b as it has become a significant factor of growth and competitiveness (Malleret, 2006;Tzokas et al, 2000). Today, offering a basic product is not enough; there is a need to suggest extra services that increase the value of the offer.…”