Ahamad Jafarnejad; Hannan Amoozad Mahdiraji; Javad Amoozadeh
Volume 9, Issue 22 , September 2011, , Pages 1-21
Abstract
By the new developments occurring in technology, management theories, manufacturing and production, and as a result, improvement in products variety, productivity and innovation, all companies and organizations are trying to handle and manage their product in a efficient manner. By identifying new methods ...
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By the new developments occurring in technology, management theories, manufacturing and production, and as a result, improvement in products variety, productivity and innovation, all companies and organizations are trying to handle and manage their product in a efficient manner. By identifying new methods in purchasing, warehousing, handling and ordering, all classical processes have lost their applications. These new methods such as Artificial Intelligence (AI) have provided the necessary tools that we need for decision making in specific situations. In this paper, some new definitions in re order point (ROP) have been discussed; in addition we have used Artificial Neural Networks (ANN) for determining re order point for purchasing goods in commercial organizations, especially import companies. For this matter, ANN has been used for decision making in purchasing, and also normal curve has been used for calculating order lead times. In the conclusion, we agreed that our new model has many priorities to its classical kinds.
Ahmad Jafarnejad; Ahmad Ahmadi; Mohammad Hasan Malaki
Volume 8, Issue 20 , March 2011, , Pages 1-25
Abstract
By studying the literature of lean production concepts and according to the attempts made by the organization to measure and implement the principles of lean production, it is decided to take the two measure streams, regarding to lean production into deep consideration. The outcome of these studies can ...
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By studying the literature of lean production concepts and according to the attempts made by the organization to measure and implement the principles of lean production, it is decided to take the two measure streams, regarding to lean production into deep consideration. The outcome of these studies can be condensed into two major achievements: 1) to draw the readers’ attentions to comprehensive definition of leanness 2) To present a framework that can first measure then provide approaches to solve the difficulties in an appropriate implementing in a suitable accordance with the comprehensive definition of leanness. Having achieved a right understanding of leanness concepts, the existing models were studied to measure organizational leanness. Having considered the strengths and weaknesses, a model was represented which is a combination of fuzzy ANP and fuzzy DEMATEL approaches. Finally, by conducting an experimental study the application of this model has been demonstrated.
A. Jafar Nejad; H. Rahimi
Volume 2, Issue 5 , June 2004, , Pages 1-26
Abstract
This research introduces an integrated method for ranking different service providing institutions based on their service quality level.
In this way the suitable criteria for assessing the service quality have been identified. In order to recognize the differences and gap analysis several hypotheses ...
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This research introduces an integrated method for ranking different service providing institutions based on their service quality level.
In this way the suitable criteria for assessing the service quality have been identified. In order to recognize the differences and gap analysis several hypotheses have been assumed. In these hypotheses we assumed that there are differences between customer expectations and his perceptions. Then these hypotheses have been investigated. An Analytical network process was used for ranking different insurance institutions based on this criteria. For these criteria are dependent.
Finally this research presents several suggestions for researchers that want to investigate this subject and presents other suggestions for improving the insurance institutions.
