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SBB Seminar “Best Worst Method - BWM: A Multi-Criteria Decision-Making method” by Dr. Jafar Rezaei (TU Delft)

  • Dr. Jafar Rezaei
15 December 2017
Science Campus
Einsteinweg 55
2333 CC Leiden

Jafar Rezaei is an associate professor of operations and supply chain management at section Transport and Logistics. He did his Ph.D. at the faculty of Technology, Policy and Management (TPM), Delft University of Technology (TU Delft). He has a background in Operations Research, and has published in several peer-reviewed journals. He is the Editor-in-Chief of Journal of Supply Chain Management Science. In 2015, he developed the Best Worst Method (BWM). His main research interests are freight transport modeling and analysis, supply chain partnership, supplier selection and segmentation, multi-objective and multi-criteria decision-making.


Decision-making is part of our daily life, where the goal of the decision-maker (DM) is to select an alternative from among a set of alternatives. Where we evaluate the set of alternatives with respect to a set of (conflicting) criteria, the problem is called a multi-criteria decision-making (MCDM) problem. For instance, think about:

  • selecting the best port from among a set of five ports by a shipper considering the criteria ‘port efficiency’, ‘port infrastructure’, ‘location’, and ‘port charges’;
  • selecting the best transportation-mode from among rail, road, and sea by a logistics-service provider company considering the criteria ‘product characteristics’, ‘flexibility’, ‘reliability’, ‘speed’, ‘traceability’, ‘costs’, ‘safety problems’, and ‘risks’;
  • identifying the most important external forces (from among the external forces ‘economic’, ‘political’, ‘competition’, ‘stakeholders’, ‘legal’, and ‘energy transition’) affecting supply chain sustainability of oil & gas industry.

There are different MCDM methods to help the decision-maker. This seminar is about a new MCDM method, called best worst method (BWM). The salient features of the proposed method, compared to the existing MCDM methods, are: (1) it requires less data; (2) it leads to more reliable results; (3) it can be used by one DM or a group of DMs.

BWM has been published in Omega in 2015[1] and has been applied in many different real-world decision-making problems. For more information visit www.bestworstmethod.com

This seminar is useful for master and PhD students and faculty members of different faculties.

[1] Rezaei, J. (2015). Best-worst multi-criteria decision-making method. Omega, 53, 49-57.

Best Worst Method