توسعه الگوي مديريت زنجيره عرضه و استفاده ازتئوري محدوديت ها

Developing the supply chain management (SCM) model and using the theory of constraints (TOC)

The optimization of organizational processes and their homogeneity are the new essence of the theory of organization. The emergence of the concept of Extended Enterprise (EE) which urges the organization to find homogeneous solutions is in the same direction. Different methods have contributed to the development of this concept and during the recent years the method of supply chain management (SCM) has taken the most impressive steps. This method needs to be developed and modified due to its limitations and weaknesses. One way to improve this method is its integration with other methods. Concerning the short comings,one of the most effective method of integration is the theory of constraints (TOC).so the main research questions are as follow: 1: How can we integrate the method of supply chain management with the theory of constraints and what are the integration cases? 2: Does the integrative method of SCM and TOC meet the needs of Extended Enterprise method and help its new construction? 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 integrating these methods and proposes a new construction model for Extended Enterprise. The research hypotheses are as follows: A: Method of supply chain management and Theory of Constraints can be integrated by means of their basic elements and key shortcomings. 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 study is an attempt to find how these two methods can be 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. It also tries to have an access to a new construction of Extended Enterprise by concentrating on the concepts of each theory instead of focusing on 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 the primary results. On the basis of the primary 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 the studies and interviews. The results were explained on the basis of the form of questionnaires among experts for more comments. On the basis of total views and comments, a closed-answer researcher made questionnaire was prepared and distributed among teachers, high-rank managers, industrial experts, and MA students. The collected data were summarized and analyzed baye means of statistical analysis (Chi square). The results represent aspects of integration of the 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 the 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.