Abstract
The time-cost trade-off problem is a specific type of the project scheduling problem which studies how to modify project activities so as to achieve the trade-off between the completion time and the project cost. In real projects, the trade-off between the project cost and the completion time, and the uncertainty of the environment are both considerable aspects for managers. In this paper, three new fuzzy time-cost trade-off models are proposed, in which credibility theory is applied to describe the uncertainty of activity duration times. A searching method by integrating fuzzy simulation and genetic algorithm is produced to search the quasi-optimal schedules under some decision-making criteria. The purpose of the paper is to reveal how to obtain the optimal balance of the completion time and the project cost in fuzzy environments.
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Ke, H., Ma, W., Gao, X. et al. New fuzzy models for time-cost trade-off problem. Fuzzy Optim Decis Making 9, 219–231 (2010). https://doi.org/10.1007/s10700-010-9076-z
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DOI: https://doi.org/10.1007/s10700-010-9076-z