“…The articles are also grouped to indicate whether there is empirical evidence supporting the research, such as case study (CS), survey (S), or modelling and simulation (M/S). Regarding the articles using M/S methods, we distinguished between those providing data from real cases [37,47,48] and those using hypothetical examples [49][50][51][52]. Articles were divided into two groups with reference to discussing the VCCFs related to the number of components and/or the number of end products.…”