توسعه الگوي مديريت زنجيره عرضه و استفاده از تئوري محدوديت ها

Development method of Supply Chain Management (SCM) and Using Theory of Constraints (TOC)

The improvement of organizational processes and their homogeneity is the new essence of the theory of organization. Manifestation of the concept of Extended Enterprise (EE) which convinces the organization to find homogeneous solutions has been realized for this reason. Different methods have contributed to the development of this concept and during the recent years the method of Supply Chain Management (SCM) have taken the most impressive steps. This method needs to be developed and modified because of its limitations and weak points. One of the ways of improving this method is through the integration of this method with other methods. Regarding the needs of this method, one of the impressive ways of integration is the Theory of Constraints (TOC). So the main research questions of this study are as following: 2. How can we integrate the method of supply chain management with the theory of constraints and what are the integration cases? 3. Does the integrative method of SCM and TOC meet the needs of Extended Enterprise method and help its new construction?Thus the present study attempts to extend the concept of Extended Enterprise, Supply Chain Management, and Theory of Constraints, and tries to present a new method by integration of these methods and propose a new construction of Extended Enterprise method. The research hypotheses are as following: • A: Method of Supply Chain Management and Theory of Constraints can be integrated by means of their basic elements and key diminutions. • B: Integrative method of SCM and TOC leads to a new construction of Extended Enterprise and can meet the essential needs of this method. The present study is an attempt to find how these two methods are compromised to present an integrative solution. This is done by means of proposing an integrative construction on the basis of foundations and diminutions of both theories. This study also tries to have an access to a new construction of Extended Enterprise by concentrating on the concepts of each theory instead of merely practical aspects of them. In order to improve the concept of methods of Extended Enterprise; Supply Chain Management and Theory of Constraints, extensive library studies and interviews with experts have been done and it has helped the formation of first results. On the basis of first results and Delphi method, a group of experts including teachers, managers, and industrial experts were interviewed. Research hypotheses and probable results were explained on the basis of the information extracted from studies and interviews. The results were again propounded in the form of questionnaires among experts for more comments. On the basis of total views and comments, a closed-answer research questionnaire was prepared and distributed among teachers, high-rank managers, industrial experts, and MA students. The collected data were summarized and analyzed by means of statistical analysis (Chi Square). The results represent different aspects of integration of two methods and make it clear that the integrated method meets the needs of Extended Enterprise. On the basis of this integrated method, and for construction of Extended Enterprise, some characteristics of organization construct, conceptual pattern of decision processing, decision making tool, characteristics of impressive leadership and organizational culture have been proposed.