This chapter applies the methodology developed in the preceding chapter (Chap. 9 ), as specifically formulated through the combination of several existing MCA approaches. Building upon the methodological considerations summarised in Chap. 1 : The Problem of Choice, this methodology has been adapted fot the case study under evaluation. For a detailed examination, please refer to Chap. 10 : The Case Study. The Gorizia Interporto. The discussion begins with a description of the working group and continues with an exposition the economic and welfare criteria adopted by the stakeholders, as well as the determination of various weights. Initial rankings will be compiled, showin the short-, medium-, and long-term performance of the alternatives separately for each stakeholder. These rankings will then be transformed into multi-period assessments by aggregating the values obtained into a single measure that also takes into account how long the effects would persist across various periods. The analysis will then proceed with an examination of possible alliances and conflicts among stakeholders, developing a matrix that records the influence of one stakeholder upon another. This will enable a decision matrix to be compliled that considers not only individual preferences but also the roles of stakeholders and their potential courses of action. A key feature of this evaluation model was stakeholders involvement, which constituted what we will call the working group. The complexity of the topics and information addressed required active and collective participation to ensure greater objectivity in the assessments. The composition of this group was fundamental to the research, and the limited number of participants facilitated interaction and enhanced synergy.