Kano’s original proposal was to evaluate each attribute through two questions: the first aimed to get the respondent’s reaction in the case of the proper functioning of the attribute (functional form of the question), and the second question sought his/her reaction when the same attribute did not work properly (dysfunctional form of the question). Whilst Kano’s questionnaire does not directly ask about the consumer’s satisfaction with the attribute, his approach suggests the need to determine whether the use of a single bipolar dimension on satisfaction surveys is enough.