Doctoral Promotion Puryantoro, S.P., M.P.

The Doctoral Program in Agricultural Science (S3), Faculty of Agriculture, University of Jember, has once again produced a new Doctor through the successful completion of an open doctoral defense held on Thursday, July 17, 2025, at the Faculty of Agriculture, University of Jember.

Doctoral candidate Dr. Puryantoro, S.P., M.P., specializing in Agribusiness, successfully defended his dissertation titled “Risk Management of Smallholder Arabica Coffee Supply Chains through a Benchmark Approach Integrating BWM–FMEA with HOR.”

The open defense was chaired by Prof. M. Rondhi, S.P., M.P., Ph.D., serving as Head of the Examination Committee. The supervisory team consisted of the following members:

• Promoter: Prof. Dr. Ir. Yuli Hariyati, M.S. (University of Jember)

• Co-Promoter I: Dr. Ir. Joni Murti Mulyo Aji, M.Rur.M. (University of Jember)

• Co-Promoter II: Prof. Dr. Ir. Soetriono, M.P. (University of Jember)

The examination board included:

• Examiner I: Lenny Widjayanthi, S.P., M.Sc., Ph.D. (University of Jember)

• Examiner II: Prof. Dr. Ida Bagus Suryaningrat, S.TP., M.M., IPU., ASEAN Eng. (University of Jember)

• External Examiner: Prof. Dr. Tomy Perdana, S.P., M.M. (University of Padjadjaran)

In his dissertation, Dr. Puryantoro identified the limitations of the commonly used Best Worst Method (BWM) for assessing supply chain risks, noting that it primarily evaluates the likelihood and impact of risk events—often resulting in biased weight assessments. To address this limitation, he developed the ARP–HOR I (Analytical Risk Prioritization–House of Risk I) approach, which enables a more comprehensive assessment of risks by considering not only the probability and impact of risk events but also the interrelationships among risk factors.

The ARP–HOR I approach has proven to be more accurate, adaptive, and practical than existing methods, offering a significant contribution to risk management in smallholder Arabica coffee supply chains. Theoretically, this model strengthens the analytical framework of House of Quality (HOQ) and Failure Mode and Effect Analysis (FMEA), providing a more realistic depiction of the complexity inherent in agricultural supply chain systems.

This research underscores the scientific contribution of the Doctoral Program in Agricultural Science (S3) at the University of Jember in advancing sustainable agribusiness and risk management studies. The findings have been published in the Asian Journal of Dairy and Food, further demonstrating the program’s commitment to promoting high-quality international publications.

Remarkably, Dr. Puryantoro completed his doctoral studies in just six semesters (three years) and graduated with Cum Laude honors—an outstanding achievement that reflects his dedication, consistency, and academic excellence.

The entire academic community of the Faculty of Agriculture, University of Jember, extends its heartfelt congratulations to Dr. Puryantoro, S.P., M.P. on this remarkable accomplishment. It is hoped that his research will serve as an important reference for strengthening smallholder coffee supply chains and enhancing the competitiveness of Indonesia’s agribusiness sector.