make a Multi$-$attribute model

Assume you are buying lighting fixtures for Algonquin College student common areas for all $3$ Algonquin College campuses $($Woodroffe Perth and Pembroke$).$ This is a three year contract where you have been somewhat satisfied with your current supplier. Your supervisor has asked you to review $2$ additional suppliers to determine the best fit. You have several areas that you would like to evaluate, price$-$ which is your primary concern, style$-$ attempting to keep current$-$ your second most concern, robustness$-$ to handle the wear and tear of students and finally customer service$-$ which is your lowest concern but still a consideration.

The three suppliers are as follows, and have responded to your four points above;

Company A$-$

Price per $100-$ $$10,000.$ Style $$ currently older style, but guarantee to have updated offerings in $1$ year. Robustness$-$ excellent they are commercial grade products. Customer service$-$ Agent lives in Ottawa, and has both contacts in Perth and Pembroke.

Company B

Price per $10-$ $$1,000.$ Style$-$ very modern, sleek something that would appeal to students. Robustness, never been tested in this type of environment. Customer Service $1-800$ number available $24$ hours per day, guaranteed next day service

Company C

Price per unit $$110.$ Style very modern, sleek. Highly robust$-$ has been tested at Queens University. Customer service $$ Sales rep dedicated to Algonquin College.

Develop a multi attribute model to determine which supplier you would select.