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Maria Ulfah
Department of Industrial Engineering, Universitas Sultan Ageng Tirtayasa
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation

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Supply-chain risk mitigation with integration of House of Risk and fuzzy logic: A case study in bakery industry Maria Ulfah; Putro Ferro Ferdinant; Dyah Lintang Trenggonowati; Missela Salsabila
Journal Industrial Servicess Vol 8, No 2 (2022): October 2022
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/jiss.v8i2.17393

Abstract

IKM Bread is a food industry located in Cilegon producing bread. IKM Bread has a supply chain system from raw material procurement, production process activities, packaging, shipping, and marketing to the hands of consumers. In its supply chain, IKM Bread has several risks that are happening, and that may occur, such as production planning, production process, and distribution. Therefore, risk identification and mitigation activity are required to minimize risk. This research aims to identify the supply chain in IKM Bread, analyze and be involved in the supply chain at IKM Bread and determine the mitigation strategy prioritized in supply risk management in the bakery industry in IKM Bread. The method used is SCOR and HOR phase 1 integrated with Fuzzy Logic to find potential risks. Then, HOR phase 2 methods are used to find the appropriate mitigation proposals for these potential risks. Based on the research, IKM Bread has 32 risk events and 20 risk agents. Therefore, the proposed risk mitigation consists of 15 proactive actions, which include conducting training for all employees, evaluating after production, briefing before starting production, and making backup production plans.
Towards zero-defect manufacturing: A proactive quality risk assessment of welding imperfections in wind tower production Yusraini Muharni; Evi Febianti; Muhammad Adha Ilhami; Ade Irman Saeful Muttaqien; Lely Herlina; Muhammad Rafi Hasyim; Anting Wulandari; Kulsum Kulsum; Hartono Hartono; Maria Ulfah
Journal Industrial Servicess Vol 12, No 1 (2026): April 2026
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jiss.v12i1.40342

Abstract

Wind tower manufacturing demands exceptionally high-quality standards due to its critical role in renewable energy infrastructure. However, defect occurrences during the production process remain a persistent challenge that can compromise structural integrity, increase rework costs, and delay project delivery. This study aims to identify, analyse, and evaluate the risk of defects in the wind tower production process by using an integrated approach of 5 Whys and Failure Mode and Effects Analysis (FMEA). The 5 Whys methodology was employed to trace the root causes of recurring defects, while FMEA was utilized to assess failure modes based on severity, occurrence, and detectability values, resulting in a Risk Priority Number (RPN) for each identified failure. The 5 Whys analysis revealed that the root of the problem lies in the absence of a procedure for verifying work positions before welding. The improvements focused on the design the standard operating procedure, increasing operator competency, controlling process parameters, and validation through trials and inspections to support a decrease in the level of defects and improve product quality.
Co-Authors Ade Irman Saeful Muttaqien Anting Wulandari Dyah Lintang Trenggonowati Evi Febianti Hartono Hartono Kulsum Kulsum Lely Herlina Missela Salsabila Muhammad Adha Ilhami Muhammad Rafi Hasyim Putro Ferro Ferdinant Yusraini Muharni