As a rule of thumb, each rank is assigned an evenly
spread membership function that has an interval of 0.30 or
0.25. Based on these assumptions, a transformation table
can be found as shown in Table 5. For example, the fuzzy
variable—Very Low has its associated triangular fuzzy
number with minimum of 0.00, mode of 0.10 and
maximum of 0.25. The same definition is then applied to
the other fuzzy variables—Low, Medium, High and Very
High. Fig. 1 illustrates the fuzzy membership functions.