In Kano’s traditional evaluation sheet, the attribute strength of all outcomes are treated
equally (A
1
¼
A
2
¼
A
3
;M
1
¼
M
2
¼
M
3
) in classification of quality attributes.
However, this method results in the categorization of too many attributes as
indifferent, relative to the numbers in the must-be and attractive categories, and too
few attributes in the one-dimensional category. Hence, the category with less impact on
satisfaction would be selected as a target for improvement. This result of
categorization using Kano’s traditional evaluation sheet is unreasonable in practice.