“…In scale-based product platform design, three questions should be answered as follows (Li et al 2008): (1) the design variables that should be made common (platform parameters) or individual within the product platform; (2) the values the platform parameters should take and (3) the values of individual parameters in every derivative product. Different methods, such as PPCEM (Simpson, Jonathan, and Mistree 2001;Messac, Martinez, and Simpson 2002;Simpson and D'Souza 2004), VBPDM (Nayak, Chen, and Simpson 2002), evolutionary algorithm (Huang, Li, and Chen 2007;Li et al 2008), genetic algorithm (Huang, Li, and Chen 2007;Li, Huang, and Newman 2007;Qu et al 2011;Liu, Wong, and Lee 2011) and so on, are almost mainly focused on questions (2) and (3). Some methods, such as information theory and clustering analysis (Chen and Wang 2008), sensitivity analysis (Dai and Scott 2007) and regression analysis (Zhu, Jiang, and Long 2003), are proposed to identify platform parameters mainly considering how they influence on product performance.…”