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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 Tibuana : Journal of Applied Industrial Engineering SISFO JISO : Journal of Industrial and Systems Optimization Indonesian Journal of Innovation Studies Jurnal Impresi Indonesia Prosiding Seminar Nasional Program Pengabdian Masyarakat SENTRI: Jurnal Riset Ilmiah Malcom: Indonesian Journal of Machine Learning and Computer Science Journal of Artificial Intelligence and Digital Business Jurnal Standardisasi
Putu Dana Karningsih
Departemen Teknik Industri Institut Teknologi Sepuluh Nopember
Religion 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
Lean Office in Administrative Billing and Vendor Payment Processes: A Systematic Literature Review Islamicsia, Princeca DW; Karningsih, Putu Dana
MALCOM: Indonesian Journal of Machine Learning and Computer Science Vol. 6 No. 3 (2026): MALCOM July 2026
Publisher : Institut Riset dan Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57152/malcom.v6i3.2711

Abstract

Administrative billing and vendor payment processes frequently experience delays due to document waiting times, repeated verification, and fragmented information flows. Although Lean Office has been widely adopted to reduce non-value-added activities in office environments, evidence regarding its implementation remains fragmented, particularly in billing and vendor payment processes. This study systematically reviews Lean Office implementation in administrative activities, focusing on billing, document verification, approval flows, and vendor payments. Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 guidelines, literature was collected from Scopus and Google Scholar using keywords related to Lean Office, administrative waste, billing, vendor payments, document verification, and non-value-added activities. From 59 initial records, eight articles met the inclusion and quality criteria and were analyzed using thematic synthesis. The findings reveal that waiting, extra processing, defective information, and document transportation are the most common forms of waste. Value Stream Mapping, Process Activity Mapping, root cause analysis, and standardization are the predominant analytical approaches. The review links major waste categories with practical improvement strategies, including document standardization, simplified approval procedures, digital integration, service-level targets, and early document validation. These findings provide practical guidance for redesigning billing and vendor payment processes to improve administrative efficiency, transparency,  process reliability.
Aplikasi Lean Manufakturing dan Junbiki System Sebagai Upaya Perbaikan Berkelanjutan on Time Delivery di Perusahaan Manufakturing Otomotif Esthadi Wahyu Septony; Putu Dana Karningsih
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.
Pengembangan 9 Waste Extended Value Stream Mapping untuk Mendukung Implementasi Lean Manufacturing Innastya Hafshah Irbatul Ilmi; Putu Dana Karningsih
Jurnal Impresi Indonesia Vol. 5 No. 8 (2026): Jurnal Impresi Indonesia
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jii.v5i8.7940

Abstract

Proses produksi pada industri manufaktur berat menghadapi pemborosan operasional sekaligus risiko kesehatan, keselamatan, dan lingkungan yang dapat menurunkan efisiensi proses. Value Stream Mapping (VSM) tradisional terutama merepresentasikan aliran material dan informasi sehingga masih terbatas dalam menggambarkan faktor manusia dan kondisi Health, Safety, and Environment (HSE). Penelitian ini mengembangkan 9 Waste Extended Value Stream Mapping (EVSM) dengan memperluas EVSM delapan waste dari penelitian terdahulu dan menambahkan HSE sebagai kategori waste kesembilan. Peta yang dikembangkan mengintegrasikan cycle time, waiting time, work in process, defect rate, aliran transportasi, risiko ergonomi menggunakan REBA, beban kerja mental menggunakan NASA-TLX, non-utilized talent, penilaian risiko HSE, serta pengukuran kondisi lingkungan kerja. Metode diaplikasikan pada tujuh proses pengecoran bogie di PT X, yaitu core making, mold making, setting core, melting, pouring, shakeout, dan shotblast. Hasil current state 9 Waste EVSM mengidentifikasi delapan dari sembilan kategori waste. Waiting menjadi waste yang paling sering ditemukan dengan 14 temuan, diikuti motion dan non-utilized talent masing-masing lima temuan, defect empat temuan, serta transportation, inventory, HSE, dan extra-processing masing-masing tiga temuan. Overproduction tidak ditemukan selama periode pengamatan. 9 Waste EVSM yang dikembangkan memberikan dasar visual yang lebih komprehensif untuk mendukung implementasi Lean Manufacturing karena menampilkan kondisi operasional, faktor manusia, kualitas, dan HSE pada setiap tahapan proses secara terintegrasi.
Development of a Framework for Lean Education Implementation in Vocational High Schools Parestri, Kartikaratri Dewi; Karningsih, Putu Dana
Tibuana Vol 8 No 2 (2025): Tibuana
Publisher : UNIPA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/tibuana.8.2.10550

Abstract

Lean, which aims to eliminate waste, has been applied to manufacturing and non-manufacturing operations. Some studies reported lean applications improving operations in universities and high schools. This study aims to develop a framework for implementing Lean Education for vocational high schools (SMK). This research is motivated by various forms of waste in SMK operations, such as long waiting times. Combination of an exploratory qualitative approach, literature review and expert validation are utilized to construct a context-specific framework. The proposed framework consists of three main stages: pre-implementation, implementation, and post-implementation, each comprising key activities such as waste identification, staff training, process mapping, lean strategy execution, and continuous improvement. This framework is expected to support SMK in minimizing waste and aligning vocational education more closely with industry needs, thereby enhancing the quality of its graduates.
Development Value Stream Mapping to Identify 8 Types of Waste Sahdhani, Muhammad Arkan; Karningsih, Putu Dana; Dewi, Dyah Santhi; Sahlan
Tibuana Vol 8 No 2 (2025): Tibuana
Publisher : UNIPA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/tibuana.8.2.10558

Abstract

This study proposes an Extended Value Stream Mapping (Extended VSM) framework to address the limitations of traditional VSM in identifying all eight types of waste (Muda), particularly those associated with human factors, environmental conditions, and material movement. While conventional VSM effectively maps value-added and non-value-added activities, it often fails to detect motion waste, transportation inefficiencies, and underutilized human potential. The proposed framework integrates time measurement using Stopwatch Time Study (STS), workflow analysis through the Flow Process Chart (FPC), ergonomic risk evaluation with the Rapid Entire Body Assessment (REBA), mental workload assessment via NASA Task Load Index (NASA-TLX), and environmental condition indicators such as lighting, temperature, and noise. Designed for labor-intensive production systems, Extended VSM offers a multidimensional mapping tool capable of supporting continuous improvement initiatives. Although this research does not include a real-case implementation, the framework is designed to be practically applicable and empirically validated in future studies.
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 Esthadi Wahyu Septony 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 Innastya Hafshah Irbatul Ilmi Irene Malilung Sitanggang Islamicsia, Princeca DW 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 Parestri, Kartikaratri Dewi Petrus Setya Murdapa Ragil Sudaryanto Rindi Kusumawardani Rindi Kusumawardani Riyanto, Rudy Rizal Indrawan Rizaldy Rizki Pratama Rohmatuka, Moh. W. Sahdhani, Muhammad Arkan Sahlan Samira Alvandi Satria Khalif Isnain Satria Khalif Isnain Septi Ayu Angrayni 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