The ceramostratigraphic laws are similar to those regulating
archaeological stratigraphy as defined by E. C. Harris. With
this approach, the links between joins are arranged in four
ways according to simple rules (i.e. a is above b; b is above
a; a and b are combined; a and b are unconnected). The first
two cases form the basis of stratigraphy; in the third, the
joins can be grouped into larger units called assemblages; these
assemblages in turn define levels of contemporaneous pottery
accumulations. With a sufficient amount of joins, the dated
assemblages, which act as stratigraphic units, allow a finer
interpretation of stratigraphies. Above all, the superimposition
of the assemblages united in the different ceramostratigraphies
controls the accurate basis of the chrono-typology.