“…However, the quality programs such as, for example, TQM (Total Quality Management) or Lean, which could assist in improving the PDP, are still used mainly to improve manufacturing processes, even considering that these programs are suitable for the PDP (Caffyn, 1997;Sun et al, 2009;Sun & Zhao, 2010;Tyagi et al, 2015). Despite the diffusion of these and other Continuous Improvement programs (CI), little has been explored on the application of these programs and the concept of CI in the PDP (Caffyn, 1999;Nilsson-Witell et al, 2005;Sun & Zhao, 2010).…”