Looking for Alternatives? Split-Shots as an Exemplary Case
161
Sn
high
low
ste
W
cer
Pb
Bi
Fig. 2 Hasse diagram generated based the data in Table 3 using TPCr, HHCr and EnCr indicators
a
ste
ste
cer
cer
high
low
Bi
Bi
Pb
Pb
W
W
Sn
Sn
b
Fig. 3 (a) Hasse diagram generated based the data in Table 4 using all 4 indicators. (b) Hasse
diagram generated based the data in Table 3 using TPCr, HHCr and EnCr indicators
alternative is obvious. It is further interesting to note that in this case all the five
suggested alternative materials for split-shots appear to oust Pb.
The dominating influence of the technical and performance indicator is also
found in this case, the relative importance of the three indicators TPCr, EnCr and
HHCr being equal to 0.5, 0.25, 0.25, respectively.
3.3 The Conservative Approach
A similar set of analyses was carried out for the conservative approach (Table 4),
the resulting Hasse diagrams are displayed in Fig. 3.
By comparing Fig.’s 1/3a and 2/3b on can obviously see that the overall trend
found for the non-conservative approach is found again here. However, some
variations in the relative indicator importance can be noted. Thus, in the case
including all four indicators (Fig. 3a) the Cost indicator appears to be the dominating
indicator, as the relative importances for TPCr, EnCr, HHCr and Cost were found
to 0.273 (TPCr), 0.091 (EnCr), 0.273 (HHCr) and 0.364 (Cost), respectively.
Excluding the Cost indicator the TPCr is found again as the dominating indicator
as the relative importance for TPCr, EnCr and HHCr are found to 0.4 (TPCr), 0.3
(EnCr) and 0.3 (HHCr), respectively.
The overall picture that Sn appears as the optimal alternative is found again here.
Thus, upon inclusion of all four indicators (Fig. 3a) the average ranking was found
161
Sn
high
low
ste
W
cer
Pb
Bi
Fig. 2 Hasse diagram generated based the data in Table 3 using TPCr, HHCr and EnCr indicators
a
ste
ste
cer
cer
high
low
Bi
Bi
Pb
Pb
W
W
Sn
Sn
b
Fig. 3 (a) Hasse diagram generated based the data in Table 4 using all 4 indicators. (b) Hasse
diagram generated based the data in Table 3 using TPCr, HHCr and EnCr indicators
alternative is obvious. It is further interesting to note that in this case all the five
suggested alternative materials for split-shots appear to oust Pb.
The dominating influence of the technical and performance indicator is also
found in this case, the relative importance of the three indicators TPCr, EnCr and
HHCr being equal to 0.5, 0.25, 0.25, respectively.
3.3 The Conservative Approach
A similar set of analyses was carried out for the conservative approach (Table 4),
the resulting Hasse diagrams are displayed in Fig. 3.
By comparing Fig.’s 1/3a and 2/3b on can obviously see that the overall trend
found for the non-conservative approach is found again here. However, some
variations in the relative indicator importance can be noted. Thus, in the case
including all four indicators (Fig. 3a) the Cost indicator appears to be the dominating
indicator, as the relative importances for TPCr, EnCr, HHCr and Cost were found
to 0.273 (TPCr), 0.091 (EnCr), 0.273 (HHCr) and 0.364 (Cost), respectively.
Excluding the Cost indicator the TPCr is found again as the dominating indicator
as the relative importance for TPCr, EnCr and HHCr are found to 0.4 (TPCr), 0.3
(EnCr) and 0.3 (HHCr), respectively.
The overall picture that Sn appears as the optimal alternative is found again here.
Thus, upon inclusion of all four indicators (Fig. 3a) the average ranking was found