International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XL-5/W2, 2013 
XXIV International CIPA Symposium, 2 — 6 September 2013, Strasbourg, France 
and structures and having been harmonized with appropriate 
standards. The analysis of these parameters is essential to the 
study of the decay pathology of the monument and for the 
detection of the actual risk factors affecting it. 
The development of risk indicators regarding degradation 
processes, draws upon data collected and organized in the 
integrated protocols for the identification of all risks that affect 
the heritage asset and further requires a series of steps like the 
detailed analysis of the risk, the evaluation of the identified 
risk, the assignment of a quantitative or qualitative designation 
to the risk and its management, in order to result in a set of 
specifically described, measurable and clearly interpreted 
indicator. 
Furthermore, the development of risk indicators needs the 
establishment of critical limits which determine whether 
deterioration level is accepted or not. Within this process the 
simple criteria of risk analysis are further elaborated into 
becoming risk indicators, able to inform about an asset's 
resilience to various impacts and loads. 
All these risk indicators cover an array of characteristic 
quantitative or qualitative parameters that can be stored and 
handled by the documentation system and define the monument 
and its components. They can be further ranked according to 
their importance, allowing calculation of an overall risk index 
as the tool that supports the scientific decision making 
procedure regarding preventive conservation and conservation 
interventions. The development of risk indicators regarding 
degradation processes is the basic step towards uptaking 
efficient management, preventive conservation and strategic 
planning for heritage assets. 
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