Thank you for the question.
One of our first considerations, when we plan a purchase, is to identify needs. There is a major difference between the goods that we can buy and services. Once we've established needs, we manage to determine whether it is a product that we can buy at the lowest price, thus at the lowest cost, or whether we need a product of this quality, but at that price. In some cases, we are open to the possibility, in assessing a request for proposal, of combining the two and going after the best value, that is to say what will represent quality and price.