چكيده لاتين :
The aim of this paper is presenting an account of the development of the body of knowledge which so far has been known as planning theory. This branch of knowledge studies the major issues related to different kinds of planning.
hough, the origin of planning practice was in Soviet Union , the first steps toward creating a set of theoretical axioms for justifying and explaining planning was taken in capitalist world and in the turn of the 20th century, These attempts were based on theory of Rationalization of Weber and ideas of Karl Manheim on the conscious administration of the society and economy.
Since, in the realm of planning theory, there are competing theories with different philosophical-scientific as well as social-political backgrounds and arguments, so that in a study like this, one can neglect none of them, the only solution is using typologies. The first and most widely used typology of planning th Theory which explains the procedure of planning per se, irrespective of what we plan for, In other words, one group of theories discusses issues of planning methodology, and the other group is specialized in issues related to subjects of plans. Furthermore, Falludi strongly believed that procedural theory is the area of specialization of planners rather than substantive which has its own specialists (economists, sociologists etc.). Therefore, for him procedural theory is the real planning theory.
Falludi typology was seriously criticized by many authors (especially in second half of 1970s and first half of 1980s. These criticisms led to suggestion of new typologies. In 1980, Nigel Taylor recognized two classes of
