“…This unified measurement of the efficiency and effectiveness is important since it is more informative in identifying the sources of the poor activity performance when compared to simply measuring the efficiency or the effectiveness of the process (Chiou et al, 2010). Other studies which also suggest decomposing the overall performance into its efficiency and effectiveness components include: Karlaftis (2004), , Keh et al (2006), Lan and Lin (2006), Chiou et al (2007), Yu and Lin (2008), Yu (2008), Yu and Lee (2009), Yu and Fan (2009), Hsieh and Lin (2010), Wu et al (2013), Huang et al (2014) and Wong et al (2015).…”