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Time and resource management are two crucial activities within the project management framework. This paper demonstrates how resource assignment Petri net (RAPN) a class of colored Petri nets, is applied effectively for modeling and scheduling of construction projects, known as a resource- constrained project scheduling (RCPSP). It captures the dynamic behavior of the project at runtime and enables the decision maker to investigate interactions between resources and project requirements. To determine the most suitable scheduling of project resources, the dynamic population and steady-state ge- netic algorithm (DP–SS GA) is integrated into the modeling framework. It is used to identify the best scheduling plan for different working schemes. In order to illustrate different resource assignment strategies and capture the dynamic inter- actions between resources and activities, a running case study is used. It is found that the modeling framework is capable of capturing the model requirements of a construction project. Compared to the exact solution generated by classic project management tools, the proposed model produced a near optimal solution.

With the increasing interest of organizations to join supply chains, and achieve the competitive advantages of such an act, the notion of strategic management of organization shifts to strategic management of supply chain as a whole and single entity. This paper studied the most available literature on strategic management of supply chain and identified 27 major factors and found the importance of each one from the viewpoint of experts. By this, seven factors which are more influential got identified and then the second questionnaire was developed for applying DEMATEL method and it was issued to a group of 18 chosen experts to find the causal relation among these seven factors and to find the key success factors in strategic management of supply chain. The results showed that participating suppliers in customers' product development and sharing expertise and technology, as well as creating a greater level of mutual trust among supply chain members are the key success factors in implementing strategic management of supply chain and they are influential and interactive with the remaining 5 factors.

Successful implementation of Total Quality Management (TQM) brings many benefits into the organization. However, in practice many enterprises fail to adopt and implement TQM. Therefore, there is need for a deeper and more systematic assessment of the factors affect on TQM implementation. With this background, this paper attempts to identify and analyze the TQM Critical Success Factors (CSFs) in Iranian context. Thus, a DEMATEL method is applied. The findings indicate that four factors, namely "top management commitment", "strategic quality planning", "process management" and "training" are driver factors and need serious attention.