Table 1.
The previous research work on the approaches for machine tool evaluation.
Fig 1.
Scheme of the proposed model.
Fig 2.
The hierarchical structure for machine tool evaluation.
Fig 3.
Flowchart of the proposed model.
Table 2.
Fig 4.
Fuzzy linguistic assessment variables [52].
Table 3.
The result of fuzzy linguistic reference relation matrix with the transforming function [51].
Table 4.
Fuzzy linguistic variables.
Fig 5.
Linguistic variables for evaluating alternative.
Table 5.
The characteristics of the three decision-making experts.
Table 6.
Pair-wise comparison matrix among the attributes of CNC machines.
Table 7.
The fuzzy linguistic reference relation matrix with attributes.
Table 8.
Transforming results of the fuzzy linguistic reference relation matrix with function f(x) = (x+0.9)/(1+2x0.9).
Table 9.
Weights of attributes.
Table 10.
Decision support matrix/trade-off matrix using fuzzy linguistic term in Table 4.
Table 11.
The trade-off matrix/decision matrix using the fuzzy numbers.
Table 12.
Defuzzification of decision support matrix/trade-off matrix.
Table 13.
Weighted normalized decision matrix.
Table 14.
The ranking for machine tool alternatives.
Fig 6.
The weights/priorities of attributes.
Fig 7.
Ranking of alternatives.
Fig 8.
Closeness coefficient of machine tool alternatives.