You have been asked to personally recommend a new travel agency to handle all air travel, accommodation and related travel needs for your organisation of 500 employees. One of your colleagues, who is responsible for the company’s economic planning, suggests that the best travel agent could be selected mathematically by inputting the relevant factors for each agency and the weight (importance) of each factor. What decision-making approach is your colleague recommending? Is this recommendation a good idea in this situation? Why or why not?