Daer Ali

In all methods use weights derived from entropy, or from standard deviation

Those are the only one rational. Subjective weights are inventiones without any foundation

Dear Nolberto Munier

Thanks for your answer. I'm wondering if is it possible and relevant to use the entropy method where some of the criteria are subjective.

suppose we are comparing some products, and besides price and other measurable factors, there are other factors like aesthetics, user-friendliness, etc, which are driven by polling customers or stakeholders.

Is it still relevant to use the entropy method here?

Dear Ali

Entropy considers the values in each criterion. In my opinion, if those values are objective or subjective is irrelevant from the point of view of computing entropy. Also, some of these values can be crisp from fuzzy

Even if each allernative is given a subjective value for a certain criterion, based in analysis, experience, knowledge and reasoning, I believe that it is perfectly viable.

For instance, if you have three different cheeses or alternatives, and a criterion like quality, you can assign each cheese a value between 1 and 10, according to how you perceive the quality of each one, after testing.

Therefore, and answering your question, I believe you can.

Dear Dr.Munier

Thank you for your time, I would search further according to your statements.