“…For example, Twigg (1998) examines the relationships between a vehicle manufacturer and six key suppliers which contribute to the final design of products; the author terms 'design chain' the interaction of design information between each supplier and customer. In fact, several collaboration modes with suppliers and customers in NPD have been analyzed: supplier innovation generation (Jean et al, 2012); early supplier involvement (Koufteros et al, 2005;Johnsen, 2009); supplier involvement and investment (Song et al, 2011); supplier integration (Petersen et al, 2005;Ettlie and Pavlou, 2006;Swink et al, 2007); supplier development (Krause et al, 2007); and customer involvement (Flynn et al, 2010).…”