The basic principle
One of the basic principles adopted in the new approach is that a
given land cover class is defined by the combination of a set of
independent diagnostic attributes, the so-called classifiers. The
increase in detail in the description of a land cover feature is
linked to the increase in the number of classifiers used. In other
words, the more classifiers added, the more detailed the class. The
class boundary is then defined either by the different amount of
classifiers or by the presence of one or more different types of
classifiers. Thus, emphasis is no longer on the class name, but on
the set of classifiers used to define this class.