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Graphic documentation
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graphic display
In the restoration field,
the gathering of information on the state of conservation of an
art work is a vital part of the process leading towards project
definition.
To achieve this, graphic documentation is prepared, in other words,
a special type of documentation that describes the opus, its historical
background and its conservation features by means of a symbolic
graphic representation accompanied by a "legend".
The data regarding the conservation history of the item, in other
words, the information regarding its original state and all the
alterations that have taken place (modifications caused by factors
or events that must be clearly identified and distinct, even in
terms of any correlation), are organised into three main groups
(Categories) denominated Procedures, Actual State and Conservation
Work.
The data concerning each Category are divided into groupings at
a lower level (Classes); data for the Procedures are divided into
Original Materials and Techniques Used, and for the Actual State
into State of Conservation and Previous Restoration.
Data are gathered by means of special diagnostic techniques which
are included in each of the three Categories, under the heading
Diagnostic Class which is subdivided into Analytical Surveys and
Technical Tests.
The Category relating to Conservation Work can take on a real design
role if the planned restoration activities are presented in the
form of a "graphic overview of the project". In any case,
the graphic information contained in this Category must document
all the work actually carried out, once the project is completed.
Graphic documentation is produced by constructing
two Project Models, associated with one another. The first is the
opus itself, the second is based on historical and conservation
data.
In constructing the first model, it is important that the representation
of the opus, carried out in simple graphic style illustrating the
main iconographic features, is as precise as possible in terms of
the geometrical and dimensional layout.
The model regarding the data is prepared using graphic symbols to
represent the single facts relating to the work's history and conservation.
These symbols are the graphic extension of a list of terms (the
various facts or events, clearly defined and distinct from one another,
that constitute the work's individual character) structured according
to the system of Categories: the association of single entities
with a series of symbols representing them, is known as a thematic
system.
Graphic documentation is therefore made up of the correlation between
the representation of the opus as it actually is, and that provided
by the information, in the form of thematic mappings organised by
groups according to the system of Categories.
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