The Data Bank
Vulnerability
The preservative card is structured in two sections:
the first is
data-identification, where the item is identified using the
standard established by the ICCD (Central Institute for Catalogue and Documentation)
for normal cataloguing activities;
the second is
descriptive, and is aimed at the recording of the state of
preservation and the calculation of vulnerability, using metric evaluations
of the constituent elements and the extent and seriousness of the different
forms of degradation present on the structure. The card also envisages a
collection of photographs, graphs and cartographic printouts.
Vulnerability is assessed by using the different items of data gathered during
the study of the structure, related to the three domains of surface and structure,
as well as that of the use of the item. It is then used as an indicator of the level
of exposure to damage in which the i-th item ("individual") finds itself
V1i = V1(t,xyz,m1...mp...)
V2i = V2(t,xyz,n1…..np...)
V3i = V3(t,xyz,o1…..op...)
where
m1...mp... = variables used to quantify the state of preservation of the surface
on the basis of the degree of urgency, gravity and extension that several types of
damage can assume in relation to the elements that characterise the "superficial"
aspect of the i-th item;
= variables used to quantify the state of preservation of the structure on the
basis of the degree of urgency, gravity and extension that several types of damage
can assume in relation to the fundamental constructional elements;
o1...op....= variables used to quantify the dynamics of use and the safety
of the item.
