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All Journal Cerdika: Jurnal Ilmiah Indonesia Eduvest - Journal of Universal Studies
Muhammad Hanafi
Institut Teknologi Bandung
Aerospace Engineering Humanities Computer Science & IT Economics, Econometrics & Finance Education Health Professions Neuroscience Public Health Social Sciences

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Transforming Inventory Management at RS Siloam Jantung Diagram: A Lean Driven Approach to Reducing DOI and Strengthening Patient Safety Mariska Ajeng Andaka; Gatot Yudoko; Muhammad Hanafi
Eduvest - Journal of Universal Studies Vol. 6 No. 7 (2026): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v6i7.53408

Abstract

This research examined inventory management challenges at RS Siloam Jantung Diagram and proposed improvement initiatives to enhance operational efficiency while maintaining patient safety. As a specialized cardiovascular hospital, the availability of medical supplies is critical to ensuring uninterrupted patient care and supporting clinical outcomes. The hospital experienced persistent inventory inefficiencies, reflected in Days of Inventory (DOI) levels that consistently exceeded the organizational target of 23 days and reached a peak of 55 days. These conditions resulted in excess inventory, expired consumables, emergency procurement, redundant activities, and delayed operational decision-making, thereby increasing operational costs while posing risks to service reliability and patient safety. A mixed-method approach was employed, combining quantitative analysis of inventory performance data with qualitative insights obtained through focus group discussions, direct observations, and a 5S assessment across key operational units. The Current Reality Tree analysis identified relationships among operational issues and revealed four primary root causes: the absence of an integrated inventory management system, lack of clear ownership, unclear roles and accountability, and reliance on manual processes. These factors reduced inventory visibility, weakened cross-functional coordination, and limited timely decision-making. Based on these findings, the study proposed improvements in governance, process standardization, forecasting practices, role clarification through RACI alignment, real-time monitoring, and preparation for Warehouse Management System and hospital information system integration. The research demonstrated that addressing systemic causes rather than isolated symptoms could improve inventory performance while strengthening patient safety. The proposed framework provides a practical reference for healthcare organizations seeking sustainable inventory management practices and operational excellence.
The Design of Project Procurement Management to Improve Company Performance Project (Study Case: Warehouse Manufacture) Mochammad Ravi Armanda Putra; Gatot Yudoko; Muhammad Hanafi
Cerdika: Jurnal Ilmiah Indonesia Vol. 5 No. 10 (2025): Cerdika: Jurnal Ilmiah Indonesia
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/cerdika.v5i10.2687

Abstract

The Indonesian construction industry continues to face significant challenges related to project delays, especially in warehouse manufacturing projects. These delays often result in increased costs, reduced quality, and weakened stakeholder trust. This research aims to analyze the primary causes of delays in the warehouse construction project of PT. WMA and to design a procurement management framework that improves project performance. By conducting qualitative methods such as group discussions, the study identifies key contributing factors, including poor planning, weak interdepartmental coordination, supplier delays, and insufficient procurement monitoring. Root cause analysis was conducted using the Current Reality Tree (CRT), revealing that the lack of effective procurement management was the central issue. The study proposes a comprehensive procurement management framework based on the PMBOK 6th Edition, emphasizing the importance of planning, executing, and controlling procurement processes. Implementation of this framework is expected to reduce project delays and enhance the overall performance of construction projects. The findings not only contribute to academic knowledge but also provide practical recommendations for improving procurement practices in Indonesia’s construction sector.
Co-Authors Gatot Yudoko Mariska Ajeng Andaka Mochammad Ravi Armanda Putra