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All Journal Jurnal Teknik ITS IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science Agrointek Jurnal Optimasi Sistem Industri Jurnal Studi Manajemen dan Bisnis PROZIMA (Productivity, Optimization and Manufacturing System Engineering) Indonesian Journal of Information System CAPITAL: JURNAL EKONOMI DAN MANAJEMEN SISFO JISO : Journal of Industrial and Systems Optimization Indonesian Journal of Innovation Studies Prosiding Seminar Nasional Program Pengabdian Masyarakat SENTRI: Jurnal Riset Ilmiah Journal of Artificial Intelligence and Digital Business Jurnal Standardisasi
Putu Dana Karningsih
Departemen Teknik Industri Institut Teknologi Sepuluh Nopember
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Medicine & Pharmacology Social Sciences Transportation Other

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Toward a More Dynamic Supplier Evaluation: A Time Series Forecasting Perspective : Membangun Upaya Evaluasi Pemasok yang Lebih Dinamis: Perspektif Peramalan Deret Waktu Fikri, Muhammad Naufal; Pujawan, I Nyoman; Karningsih, Putu Dana
Indonesian Journal of Innovation Studies Vol. 27 No. 2 (2026): April
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v27i2.1931

Abstract

General Background: Procurement continuity is essential for maintaining healthcare service operations, where supplier failures can disrupt service quality. Specific Background: This study evaluates supplier reliability in provincial government healthcare facilities in East Java, Indonesia, using three key performance metrics: on-time delivery (OTD), quantity fulfillment, and order lead time, based on 2023 contract data from 13 pharmaceutical suppliers. Knowledge Gap: Traditional supplier evaluation is often static, limiting the ability to detect temporal performance shifts and future reliability risks. Aims: This research aims to develop a dynamic supplier evaluation framework by integrating time series forecasting methods. Results: Historical performance showed moderate–high reliability (OTD ≈ 80.04%, quantity fulfillment ≈ 79.3%, lead time ≈ 20 days). Forecasting with exponential smoothing and Theta methods indicated declining OTD and quantity fulfillment, alongside improved lead time performance (≈ 10 days). Forecast errors were MAE ≈ 25% and RMSE ≈ 32% for service metrics, and MAE ≈ 8 days and RMSE ≈ 9 days for lead time. Novelty: The study advances supplier evaluation by combining multimetrical reliability assessment with forecasting-based temporal detection, moving beyond one-time performance scoring. Implications: This dynamic approach supports healthcare procurement managers in prioritizing resilient suppliers, adapting sourcing strategies, and mitigating operational risks in uncertain environments. Highlights: Supplier performance exhibited fluctuating reliability patterns across monthly contract periods. Forecasting results revealed decreasing delivery and fulfillment rates with shorter shipment durations. Service compliance metrics were strongly correlated, while lead time remained relatively independent. Keywords:  Public Healthcare Procurement, Supplier Evaluation, Supplier Performance Forecasting, Supplier Reliability
Aplikasi Lean Manufakturing dan Junbiki System Sebagai Upaya Perbaikan Berkelanjutan on Time Delivery di Perusahaan Manufakturing Otomotif Septony, Esthadi Wahyu; Karningsih, Putu Dana
SENTRI: Jurnal Riset Ilmiah Vol. 5 No. 3 (2026): SENTRI : Jurnal Riset Ilmiah, Maret 2026
Publisher : LPPM Institut Pendidikan Nusantara Global

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/sentri.v5i3.5880

Abstract

In the automotive manufacturing industry, on-time delivery (OTD) is a key sign of how reliable operations are. Not only do activities on the assembly line affect OTD performance, but so do the effectiveness of internal logistics in making sure that material flow meets production needs. This study examines the implementation of Lean Manufacturing through the integration of Value Stream Mapping (VSM) and the Junbiki system as a pull-by-sequence approach to enhance internal logistics performance and stabilize on-time delivery (OTD). A case study methodology is employed, concentrating on the internal logistics process for large-part distribution within an automotive manufacturing firm. The research commences with Current Value Stream Mapping (CVSM) to pinpoint waste, subsequently leading to the creation of Future Value Stream Mapping (FVSM) and the execution of the Junbiki system. To see if performance has improved, we look at the logistics lead time and material flow conditions before and after implementation. The Junbiki system cut the total logistics lead time by 60.5%, from 315.2 minutes to 124.4 minutes. This improvement was made by getting rid of delays in getting information, cutting down on double handling, making transportation routes easier, and cutting down on wait times caused by too much inventory. As a result, the flow of materials became more in sync with assembly operations, which made OTD performance more consistent. This study emphasizes the significance of sequence-based material flow control via the Junbiki system in enhancing production reliability. However, as a singular case study, the results are particular to the observed context and must be utilized with regard to varying logistics and production circumstances.
Co-Authors Adinda Sushmita Dewanti Adithya Sudiarno Aditia Shofyan, Rizal Aditya Rahadian Fachrur Adji Sepvian Fadillah Budiono Ahmad Syamsuri Al Kindhi , Berlian Amelia Santoso Anda Iviana Juniani Andrew Andrew, Andrew Arie Diputra Ersam Arif Budi Sulistyo Arif Wahjudi Ariyani, Made Laksmi Atmam Abdha Arianandha Bambang Prasetya Benhard Panangian Budi Siswanto Budisantoso Wirjodirdjo Chatarina Dian Indrawati Danar Agus Susanto David Dwi Harjanto Dewanti Anggrahini Dewanti Anggrahini Dewanti Anggrahini Dewanti Anggrahini Dewi, Dyah Santhi Dewinta Cahya Mardiatilla Dodgalih Nur Muhammad Dwa Desa Warnana Edi Winarno Emielda Rizqiah Farah Widyan Hazmi Fauzillah Indriani Fauziyah Fatma Ningrum Fikri, Muhammad Naufal Gede Bima Nugraha Hari Supriyanto Hari Supriyanto Hari Supriyanto Henry Pariaman I Made Londen Batan I Nyoman Pujawan Iffan Maflahah Imandio Wicaksono Inggrit Febriani Sulistiono Putri Inggrita Putri Kusuma Wardani Irene Malilung Sitanggang Iwan Vanany Kurniati, Nani Lestari, Nastiti Puji Maria Anityasari Mokh. Suef Mokhamad Suef Moses Laksono Singgih Muhammad Ryan Nur Haq Nani Kurniati Nastiti Puji Lestari Novi Dwi Jayanti Novi Dwijayanti Petrus Setya Murdapa Ragil Sudaryanto Rindi Kusumawardani Rindi Kusumawardani Riyanto, Rudy Rizal Indrawan Rizaldy Rizki Pratama Rohmatuka, Moh. W. Samira Alvandi Satria Khalif Isnain Satria Khalif Isnain Septi Ayu Angrayni Septony, Esthadi Wahyu Sherina Amalia Permatasari Sofyan Atsauri Sutikno Sutikno Udisubakti Ciptomulyono Udisubakti Ciptomulyono Valiana Gamma Krestanti Wicaksono, Bagas Wahyu Wijdani Anindya Hadi Winda Puspitasari Winda Puspitasari Wiwin Widiasih Yuanita Kumala Dewi Yudha Prasetyawan Yudha Prasetyawan Yuniasri, Riskyta Yusita Mega Kuncoro