The design prototype of the simulation of the best alternative, selected by a multicriteria technique, exposes a solution for the improvement of the operative process of the restaurant-bar Manhattan, including performance variables. The approach of the improvement alternatives for the operative process starts from the application of the engineering technical tools, later, through a hierarchical analysis process, the prioritization of the 17 alternatives is performed, the three most relevant ones are validly derived: inclusion of an additional waiter for the operation of the establishment, the construction of an additional service bar and the design of a mobile gondola as a new source of attention (sales). The validation of these alternatives is done by simulating them, however, the opportunity to develop the implementation of the mobile gondola. As a result of this implementation, an increase in sales of the business is evidenced, approximately 25% of the total sales during the first month of the gondola’s operation came from this alternative. Once the first two alternatives have been simulated and the third has been implemented, the financial analysis will be carried out for each one in order to obtain the key indicators for the development of the second Hierarchical Analysis (NPV, IRR) that allows us to identify that the construction of an additional service bar in Manhattan is the best alternative taking into account the following criteria: NPV, IRR, income and implementation times.