The study aims to develop the most suitable theorizing model in the postmodern period to form an objective tool which is able to deal with the addressed plurality and architecture subjectivity. Accordingly, the study is oriented to discuss the theorizing process and methodology to enable architects to reach a paradigmal theorizing view, especially in the postmodern period, to understand the paradigmal shift in architecture. In achieving this aim, the research deals with the characteristics of the epistemological theory of architecture in the postmodern period. Subsequently, the most suitable frame research view for studying architecture theory is selected. Following the research studies how to develop this appraisal theorizing model in order to confirm an accepting framework which could be applied. Consequently, the research studies how to apply this model in the contemporary world architecture to reach a clear view for the development and substitution of the suggested results that the model enables as a theoretical analytical and directing tool.