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Architectural stratigraphy is the sum total of construction acts, reconsideration and changes to the initial plan of a building, as well as any collapses and reconstructions due to human factors (demolition) or natural ones (such as earthquakes). All of this information is recorded in the structure of the building itself and must be meticulously identified and decoded. Decoding signs left on the horizontal and vertical surfaces of buildings reveal the passage of time for these structures, which is one of the main questions in archaeological research. Stratigraphy thus becomes an analytical methodology that can give reliable information and help delineate the outlines of construction techniques, the architectural typologies and, in particular, the history of a building.