1.This is a book of our epoch, enhancing in a homogenous presentation the theory and practice of decision-making in the management context. It was developed a practical case regarding the decision making within Risk and Uncertainty conditions, by a firm, the final goal being an efficient product in order to ensure the profit maximization. The scientific management of an enterprise (firm) and the solution to the multitude of problems which production and economic and financial activity raise imply permanently decision making, resolutions. The success or failure (bankruptcy) of a firm (enterprise), its current and future potential, its flexibility and adaptability on the market, depend to an overwhelming extent, on the decision making act and / or process in multidimensional conditions. We focused on the terms of utility, criteria, methods and formal principles, even an original mix criterion, in order to obtain the fair and adequate product or service for the market.