This article outlines the methods and activities, in the field of mapping, in support of the important process of renewal of the entire cadastral system.
It describes the technology and spatial data currently available that can assist in setting up complex issues of reforming appraisal system and, more generally, in the processes against tax evasion in real estate.

Il coinvolgimento del pubblico e degli stakeholder nelle moderne attività di pianificazione territoriale richiede l’utilizzo di strumenti e metodologie adeguati che supportino i planner nell’acquisizione e

Engaging public and stakeholders in contemporary spatial planning exercises calls for the use of proper tools and methods, which support planners to acquire and manage local information and knowledge (local views, values, attitudes, interests, etc.), increasing thus the effectiveness of both the process and the outcome of planning efforts. The focus of the present paper is on the development of a methodological framework that can accommodate participatory tools at the stage of the evaluation in the planning process.