“…Belton and Stewart, 2002;Stewart et al, 2010), as detailed in section 2.2, (ii) stakeholders analysis in the form of a power interest matrix is particularly suitable for complementing the Multi Attribute Value Theory technique given that the latter in a collaborative decision process context does not efficiently support the achievement of a consensus in the preference elicitation phase (e.g. Ferretti and Comino, 2015), thus calling for the need to aggregate different viewpoints according to their different levels of importance, as discussed in section 2.3 and in the conclusions, and, finally, (iii) stakeholders analysis has shown to be a very important preliminary step in multi attribute decision making processes (Dente, 2014), as detailed in section 2.1. The approach proposed in the present paper has thus an innovative value, which stems not only from the experimentation of the mix of the above mentioned specific techniques to support the overall planning process with a participatory approach, but also from their testing in the context of public policy making and cultural heritage management, where the combination of qualitative and quantitative methods seems to yield greater benefits (Myllyviita et al, 2014).…”