In this article an attempt is made to classify the vast literature reg
arding manufacturing flexibility; the aim is to contribute to the conc
eptual systemization of the debate, whose richness plays witness of th
e abundance of themes and the difficulty of obtaining a unitary and un
ivocal framework. The literature on manufacturing flexibility is analy
sed according to a scheme which considers six different aspects: (1) d
efinition of flexibility, (2) request for flexibility, (3) classificat
ion in dimensions of flexibility (the authors group the various classi
fications proposed according to different logics: horizontal, vertical
, temporal, by the object of the variation, mixed), (4) measurement of
flexibility, (5) choices for flexibility, (6) interpretation of flexi
bility.