  Niels Bohr introduced the concept of complementarity in order to give a
general account of quantum mechanics, however he stressed that the idea of
complementarity is related to the general difficulty in the formation of human
ideas, inherent in the distinction between subject and object. The
complementary descriptions approach is a framework for the interpretation of
quantum mechanics, more specifically, it focuses in the development of the idea
of complementarity and the concept of potentiality in the orthodox quantum
formulation. In PART I of this article, we analyze the ideas of Bohr and
present the principle of complementary description which takes into account
Einstein's ontological position. We argue, in PART II, that this development
allows a better understanding of some of the paradigmatic interpretational
problems in quantum mechanics, such as the measurement problem and the quantum
to classical limit. We conclude that one should further develop complementarity
in order to elaborate a consistent worldview.
