A Hybrid Model of Grey Fuzzy Goal Programming in Project Time, Cost, Risk and Quality Tradeoff

Document Type : Original Article


1 Assistant Professor, University of Tehran.

2 MBA, Institute of Higher Education Mehr Alborz.


The project management is planning and conducting projects within time, cost and quality is determined towards the creation of specific results. The aim of this research was to develop mathematical models for the trade off time, cost, quality and risk of the project which parameters of its activities have been estimated randomly with grey numbers. In the projects, managers are looking for the optimal combination of time, cost and quality of the project and considering the risk, while information is limited and insufficient in this area. Using the proposed method with grey numbers can help to manage projects well in these conditions. For solving the model / methodology, the hybrid of fuzzy goal programming and grey linear planning has been predicted. By examining the responses, it seems that there is a possibility for them to be improved with goal programming; therefore, the further stages with goal programming for better satisfactory answers were presented to the project manager. For a case study, the project(s) in Iran Khodro Company is selected.


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