“…Different studies have been done in the past two decades on identifying critical success or failure factors of NPD with different methodologies (e.g., Cooper and Kleinschmidt, 1995;Spivey et al, 1997;Montoya-Weiss and Calantone, 1994;Cooper and Edgett, 2006;Holland et al, 2000;Ebrahimi et al, 2006;Sun and Wing, 2005;Cooper and Kleinschmidt, 2007;Lim et al, 2003), discovered various factors, and achieved diverse outcomes; however, valuable but sometimes conflicting, or even contradictory with the results of other studies (Afonso et al, 2008). Moreover, there are some studies (e.g., Ernst, 2002) which present a review of other studies in the field of NPD.…”