Abstract
In the 2oth century, the important developments in the history of philosophy of science are: the first debate, Positivism and Inductivism; the second debate, Karl Popper’s Refutationism and Lakatos’s research program; the third debate, Thomas Kuhn’s Structuralism and relativism; and the forth debate, Hermeneutics. After dominating Hermeneutics in the field of philosophy of science, a fundamental development occurs in its methodology. One can classify the types of Hermeneutics from two points of view: 1) its application; 2) its historical period. This paper is going to deal with the influential backgrounds of Hermeneutics as well as to present a brief account of the types of Hermeneutics.