The Analytical Network Process (ANP) was used in this study. ANP is a methodology
that allows groups or individuals to deal with the interconnections (of dependence and
feedback) between factors of complex structure in the decision-making process (Saaty,
1980, 1996). The ANP model consists of a network of factors of the problem and the
logical groupings of these factors into clusters. Relationships between factors within
the same cluster are called inner dependencies, whereas links between an element in
one cluster and another one in a different cluster are called outer dependencies (Saaty,
2005). If there are outer dependencies between two clusters in both directions, this
relation is called feedback.