Article Per Year (5 Year)
p-Index From 2021 - 2026
7.124
P-Index
This Author published in this journals
All Journal Jurnal Teknologi Industri Pertanian Jurnal Energi Dan Manufaktur Jurnal Rekayasa Sistem Industri Industrial and Systems Engineering Assessment Journal (INASEA) Agrointek Sinergi JISI UMJ (Jurnal Integrasi Sistem Industri UMJ) Jurnal Teknologi Pertanian Jurnal Ilmiah Teknik Industri Jurnal Industri Hasil Perkebunan OPERATION EXCELLENCE: Journal of Applied Industrial Engineering JRSI (Jurnal Rekayasa Sistem dan Industri) Jurnal Teknik Industri : Jurnal Hasil Penelitian dan Karya Ilmiah dalam Bidang Teknik Industri Jurnal Pengabdian Masyarakat AbdiMas Jurnal Ilmiah Teknik Industri Jurnal Sistem Teknik Industri JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Al-Kharaj: Journal of Islamic Economic and Business Jurnal Pengabdian Masyarakat Teknik Jurnal Kepariwisataan Indonesia: Jurnal Penelitian dan Pengembangan Kepariwisataan Indonesia Jurnal Pengabdian Masyarakat Indonesia Prosiding Konferensi Nasional PKM-CSR eProceedings of Engineering Eduvest - Journal of Universal Studies Metris: Jurnal Sains dan Teknologi Aerospace Engineering Journal of Technology and System Information
Iphov Kumala Sriwana
Universitas Telkom
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Mechanical Engineering Neuroscience Nursing Public Health Social Sciences Transportation

Published : 69 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 69 Documents
Search

 3   4   5   6   7 
Design of Lean Manufacturing to Improve Efficiency of The Coffee Agro-Industry Supply Chain Sriwana, Iphov Kumala; Santosa, Budi; Pambudi, Hardian Kokoh; Maulanisa, Nida Fariza
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 10, No 1 (2025): January 2025
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v10i1.3330

Abstract

nappropriate material processing and supplying activities in a coffee agro-industry supply chain potentially lead to excessive waste, resulting in very low efficiency. Efficiency in the coffee agro-industry supply chain has to be considered, since the coffee agro-industry provides relatively high contribution to GDP, approximately 13.7%. Wasteful activities may significantly affect the GDP earned if not being eliminated. This study was aimed to identify waste produced along the coffee agro-industry supply chain and provide recommendations for improving supply chain efficiency, from the harvesting to the ground coffee processing. Actors of the coffee agro-industry supply chain consist of various parties, i.e. farmers, collectors, processors, and consumers. The supply chain is comprised of internal, external, and overall activities in which material and information flows are integrated within business units that traverse simultaneously between direct suppliers and consumers. In order to achieve optimum results, efficiency improvement by eliminating all sources of waste must be carried out at each stage. The method used to obtain this efficiency was Lean manufacturing, initiated with identifying waste using Process Activity Mapping (PAM), followed by identification with Current Value Stream Mapping (VSM). The efficiency value of the current condition was 93,9%. This shows the condition is good and there is no waste in time. There are other waste that needs to be analyzed, namely motion analysis and process. Keywords - Coffee, Efficiency, Supply Chain, Process Activity Mapping, Value Stream Mapping.
Usulan peningkatan kecepatan produksi di UKM Cokelat Ibunmanis menggunakan soft system methodology Iphov Kumala Sriwana; Muhammad Almaududi Pulungan; Annisa A. Lestari; Siwi Lintang Pertiwi
AGROINTEK Vol 19, No 1 (2025)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v19i1.17777

Abstract

Indonesia is the world's third largest cocoa producer, leading to the high potential for cocoa processing and conversion to downstream industries. However, the downstream production of cocoa processing only reaches low utilization, around 40%. This problem also happens to UKM Ibunmanis in Bandung, which often fails to meet consumer demand. We have done a study to overcome this problem, aiming to make suggestions to improve production process technology,  to increase production capacity and ability to meet consumer demand. Here, we used Soft System Methodology (SSM) to provide solutions to the problems. The SSM consists of seven stages: Problem identification, Rich Picture Diagram, Root Cause Analysis coupled with CATWOE analysis, conceptual model activities (9 model activities), debating, improvement suggestions, and implementation. The results indicate that the transformation process carried out is in the form of processing chocolate bars into downstream products, with the limitation being conventional technology, which has model activities for designing appropriate technology for critical processing processes in UKM. Implementing the appropriate technology can speed up the production process from 30 minutes to 7 minutes or increase process efficiency by 77%. In addition, suggestions resulting from the method for the melting process can gain more profits and increase the sustainability of the SMEs
Rancang bangun sistem penunjang keputusan nilai tambah rantai pasok agroindustri bunga matahari Nunung Nurhasanah; Isna Ibnah Mudrikah; Ginang Natilla Adlina; Ahmad Chirzun; Iphov Kumala Sriwana
AGROINTEK Vol 19, No 1 (2025)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v19i1.22630

Abstract

Sunflowers are commodities with the potential to be developed into derivative products such as cooking oil, herbal oil, animal feed, and even biodiesel. However, stakeholders in the sunflower agro-industry, from farmers to producers of derivative products, still face several challenges in creating the best practices for sunflower agro-industry. These challenges include the underutilization of technology and the application of supply chain management. Therefore, this research focuses on designing a prototype decision support system for value added products in the sunflower agro-industry supply chain network. The purpose of this research is to support stakeholders in making informed decisions regarding the production of sunflower derivative products, including cooking oil, herbal oil, and animal feed. The development of this decision support system design utilizes the system development life cycle (SDLC) method with a waterfall model. The prototype design results employ the Just in Mind application for creating a graphical user interface and will be implemented on smartphones using the Android system. This research is limited to supporting decision-making in the value-added model of the sunflower agro-industry supply chain. The implementation of the system is considered a subsequent stage in future research. Additionally, the addition of other models is expected to be developed in future studies.
TELOS Feasibility Analysis for Application Development Project using System Dynamics Approach Putri, Sinta Mulyani Dwi; Chumaidiyah, Endang; Sriwana, Iphov Kumala
JTI: Jurnal Teknik Industri Vol 11, No 1 (2025): JUNI 2025
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v11i1.37009

Abstract

Organization X reported that 75% of its application development projects from 2020 to 2023 were overscheduled, with the ABC application project being the most delayed. Field observations attributed these failures to inadequate planning and the absence of structured feasibility evaluations. This study addresses the gap by designing a dynamic feasibility model for the ABC project using a System Dynamics (SD) approach grounded in the TELOS criteria—Technical, Economic, Legal, Operational, and Scheduling. Unlike traditional static methods, the SD model captures feedback loops and interdependencies between project variables, enabling dynamic scenario simulations. Applied research methods were used to develop causal loop and stock flow diagrams, which were verified and validated via the Vensim tool. Baseline simulations yielded an average feasibility score of 7.26, exceeding the viability threshold. Among four tested scenarios, a combined intervention—adding 30%-time reserve, increasing team size, and enhancing quality control—produced the highest score of 7.35. Singular adjustments to time, cost, or quality were less effective than the integrated approach. This study demonstrates the novelty and effectiveness of applying SD to TELOS-based feasibility analysis, offering a predictive and adaptive tool for strategic project planning. The model enables proactive identification of critical phases and supports more informed decision-making, improving alignment with organizational objectives and overall project success. Keywords: Project Feasibility, TELOS, Dynamic Systems, Decision Making, Project Management  
Analisis Kebutuhan Sistem Monitoring untuk Perbaikan Proses Bisnis dengan Soft System Methodology (SSM) pada UMKM Ibunmanis Coklat Saputri, Dheanty Galuh; Sriwana, Iphov Kumala
Journal of Technology and System Information Vol. 1 No. 3 (2024): July
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jtsi.v1i3.2578

Abstract

Ketidaksesuaian data antara bahan baku, produksi, dan stok gudang sering kali mengakibatkan perbedaan besar antara data yang tercatat dan situasi aktual. Permasalahan pada UMKM Ibunmanis coklat adalah sistem manual yang digunakan saat ini dalam pengelolaan data. Data material yang tidak akurat dapat berasal dari pencatatan manual yang tidak cermat atau informasi yang tidak diperbarui secara konsisten. Ketidakakuratan data persediaan ini berpotensi mengakibatkan gangguan operasional yang serius. Metode Soft System Methodology (SSM) merupakan pendekatan yang tepat untuk membantu perusahaan melakukan identifikasi masalah dengan lebih cepat dan mengambil tindakan perbaikan yang efektif. Soft System Methodology (SSM) memungkinkan UMKM Ibunmanis coklat untuk membangun sistem monitoring. Dengan sistem monitoring, staff akan dapat melihat data terkini secara real-time, memastikan koordinasi yang lebih baik antar bagian, dan meminimalkan kesalahan. Dengan menggunakan Soft System Methodology diidentifikasi bahwa UMKM Ibunmanis coklat membutuhkan sistem monitoring pada sistem manajemen pengadaannya untuk memperbaiki proses bisnis yang berjalan. Hal ini didukung hasil data kuesioner yang telah dilakukan bahwa tingginya rasio kebutuhan sistem monitoring pada proses bisnis UMKM Ibunmanis coklat.
SCHEDULING PLANNING SOYBEAN COMMODITY DISTRIBUTION ACTIVITIES AT CV XYZ USING DISTRIBUTION REQUIREMENT PLANNING (DRP) METHOD Jilan Amarla Diwani; Iphov Kumala Sriwana; Nia Novitasari
Jurnal Teknologi Industri Pertanian Vol. 35 No. 1 (2025): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24961/j.tek.ind.pert.2025.35.1.23

Abstract

CV XYZ is a company engaged in the distribution of soybean commodities, located in Tangerang Regency. The company distributes its products to five retail outlets across the Jabodetabek area using two operational vehicles. Currently, CV XYZ faced issues with distribution scheduling due to the lack of a fixed policy, leading to occasional increases in delivery frequencies caused by insufficient stock and an inefficient existing scheduling system. As a result, the fulfillment rate of retail demands only reached 93% of the company’s target of 99%, creating a 6% gap that the company aims to address. To resolve this issue, a new distribution scheduling plan was developed using the Distribution Requirement Planning (DRP) method. Distribution Requirement Planning (DRP) method consists of four stages: first Netting for the process of calculating the amount of net requirements, second Lotting for the process of calculating the ideal order quantity, third Offsetting to determine the order plan, and finally the fourth explosion for the process of calculating gross requirements in distribution. The results of the new plan show an increase in the fulfillment rate of retail demands to 99.8%. Additionally, total distribution costs were successfully minimized, decreasing from Rp 593,980,120 to Rp 551,934,498, resulting in a saving of Rp 42,045,622 or approximately 7% of the previous total distribution costs. Keywords: inventory, scheduling, distribution, distribution requirement planning (DRP)
Partnership Model Between MSMEs and Industrial Companies in West Java to Improve MSME Performance Through Digital Competency, Sustainable Value Creation, Community Involvement and Development Merliana, Karlina; Andrawina, Luciana; Sriwana, Iphov Kumala
eProceedings of Engineering Vol. 12 No. 3 (2025): Juni 2025
Publisher : eProceedings of Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Micro, Small, and Medium Enterprises orMSMEs are crucial to Indonesia's economy, contributing over50% to the national GDP, absorbing 97% of the workforce, anddemonstrating significant potential for growth throughpartnership programs, digital transformation, and sustainablevalue creation, despite challenges such as fluctuating economicgrowth and low levels of collaboration with large enterprises.This study aims to design an effective partnership programbetween industrial companies and MSMEs in West Java.Focusing on MSMEs, this study examines how the variables ofdigital competence, sustainable value creation and communityinvolvement and development are able to influence partnershipprograms which ultimately have an impact on MSMEsperformance. The population in this study were MSMEsbusiness actors in West Java who had collaborated withindustrial companies. While the sampling technique usedpurposive sampling where the sample used in this study was 97MSMEs business actors. Data analysis used Smart PLS 4 basedPartial Least Square. Based on the results of the direct influenceanalysis, it shows that Digital Competence has a significanteffect on community involvement and development; communityinvolvement and development have a significant effect onpartnership programs; sustainable value creation has asignificant effect on partnership programs; and PartnershipPrograms have a significant effect on SME Performance. Whilethe results of the indirect influence analysis show that digitalcompetence has a significant effect on community involvementand development and partnership programs.
Perancangan Usulan Model Bisnis untuk Meningkatkan Kinerja pada CV Baribatao Logistik Menggunakan Business Model Canvas dan Saving Matrix Afiif, Rahmad Fajar; Sriwana , Iphov Kumala; Setyawan, Erlangga Bayu
eProceedings of Engineering Vol. 11 No. 4 (2024): Agustus 2024
Publisher : eProceedings of Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

CV Baribatao Logistik merupakan perusahaan yang bergerak dibidang pengiriman barang atau jasa ekspedisi sejak tahun 2014, berlokasi di komplek Taman kopo No.10, Katapang, Kec. Katapang, Kabupaten Bandung, Jawa Barat 40921. CV baribatao Logistik mempunyai masalah kegagalan pengiriman yang sebagian besar disebabkan oleh kekurangan armada transportasi, sehingga perusahaan tidak mampu memenuhi permintaan pengiriman pelanggan. Permasalahan tersebut diselesaikan dengan menggunakan metode business model canvas untuk menggambarkan model bisnis perusahaan, selanjutnya memberi usulan dengan menggunakan analisis SWOT, dari hasil usulan SWOT tersebut dapat diruncingkan lagi pada permasalahan armada transportasi dengan menggunakan metode saving matrix dan pendekatan nearest neighbor yang bertujuan untuk menentukan rute optimal, minimasi biaya distribusi, dan menentukan jumlah armada transpotasi. Berdasarkan pengolahan data, didapatkan hasil perbandingan rute distribusi awal dengan rute distribusi usulan, dimana total rute distribusi awal sebanyak 8 rute sedangkan rute distribusi usulan sebanyak 6 rute. Menghasilkan penghematan dari segi jarak dan biaya sebesar 19,49% untuk total jarak tempuh dan sebesar 21,31% untuk biaya distribusi, dan melakukan penambahan armada transportasi truk sebanyak 2 unit. Kata Kunci: business model canvas, analisis SWOT, saving matrix, nearest neighbor
Usulan Kebijakan Persediaan Produk Biji Kopi Robusta Menggunakan Metode Continous Review (Q,R) Untuk Minimasi Biaya Persediaan (Studi Kasus: Two Americanos Coffee Roasters) Usman , Muhammad Fajrin Fauzan; Sriwana , Iphov Kumala; Muttaqin , Prafajar Suksessano
eProceedings of Engineering Vol. 11 No. 4 (2024): Agustus 2024
Publisher : eProceedings of Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Two Americanos adalah sebuah perusahaan yang berfokus pada pengolahan biji kopi, Sebagai salah satu pelaku dari industri biji kopi Two Americanos membutuhkan bahan baku untuk memenuhi persediaan yang dibutuhkan untuk proses produksi, maka dari itu Two Americanos melakukan perencanaan persediaan untuk memenuhi kebutuhan produksi, namun Two Americanos masih melakukan perencanaan persediaan dengan cara tradisional dan tidak didasari dengan standar yang baik, Akibatnya seringkali terjadi ketidaksesuaian jumlah persediaan dengan permintaan yang ada, oleh karena hal tersebut terjadi kondisi overstock yang dimana produk tersebut menjadi pengaruh dalam total biaya persediaan. Solusi yang ditawarkan pada Two Americanos dalam mengatasi permasalahan yang terjadi adalah sebuah perancangan kebijakan persediaan dengan memanfaatkan metode continuous review (r,Q), metode continuous review adalah sebuah sistem pengendalian persediaan yang dimana memperhatikan persediaan Ketika melakukan pemesanan ulang. Dengan metode continuous review akan dilakukan perhitungan hingga nilai pemesanan ulang dan jumlah pemesanan mencapai angka yang optimal agar dapat meminimasi biaya persediaan Two Americanos. Hasil dari penelitian yang dilakukan dengan metode continuous review adalah rancangan kebijakan persediaan yang berupa nilai titik pemesanan ulang dan jumlah pemesanan yang optimal dan memberi dampak penurunan atau minimasi total biaya persediaan, pada hasil rancangan kebijakan persediaan ini dihasilkan penurunan total biaya persediaan yaitu pada kondisi usulan periode 2022 dari hasil perancangan didapatkan hasil jumlah pemesanan sebesar 20,413 Kg dan titik Reorder Point pada 2,945 Kg, Sedangkan pada kondisi usulan periode 2023 didapatkan hasil jumlah pemesanan sebesar 18,831 Kg dan titik Reorder Point pada 2,467 Kg. Kata kunci— continuous review, robusta, persediaan, pemesanan, kebijakan
Perbandingan Metode Dedicated Based Storage Dan Class Based Storage Dalam Usulan Perbaikan Alokasi Barang Pada Gudang Pt Xyz : Analisis Efisiensi Serta Pengelolaan Stok Budiman, Muhammad Fahreza Fajar; Sriwana, Iphov Kumala; Setiawan, Erlangga Bayu
eProceedings of Engineering Vol. 11 No. 4 (2024): Agustus 2024
Publisher : eProceedings of Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

PT XYZ merupakan anak perusahaan dari PT AAA yang telah berdiri sejak tahun 2012, untuk memenuhi berbagai kebutuhan di bidang perkeretaapian. PT XYZ memiliki banyak fasilitas yang tersebar di seluruh wilayah Indonesia. Salah satu fasilitas yang dimiliki oleh PT XYZ adalah gudang, yang berfungsi sebagai tempat penyimpanan barangbarang yang dibutuhkan untuk keperluan operasional kereta api. Dalam perancangan alokasi gudang PT XYZ dibutuhkan analisis yang mendalam terkait kebutuhan perusahaan, serta metode dan teknik yang sesuai untuk menentukan alokasi barang yang optimal. Kinerja pengelolaan gudang PT XYZ masih belum efektif dan efisien, Dimana penempatan barang yang tidak terartur dan bercampur serta penempatan barang masih berdasarkan space kosong yang ada. Oleh karenanya dilakukan penelitian dengan tujuan optimalisasi pemanfaatan gudang. Dengan membandingkan metode Dedicated Based Storage dan Class Based Storage untuk memilih alokasi barang yang efektif yang sesuai dengan tipe dan karakteristik gudang. Hasil penelitian menunjukan keunggulan dari metode Dedicated Based Storage dibandingkan dengan penyimpanan awal dari jarak tempuh awal adalah 4635 m menjadi 4436,2 m dengan penurunan sebesar 8,37%, luas lantai awal 259,67 m2 menjadi 216,9 m2 dengan penurunan sebesar 16,45%, peningkatan kapasitas gudang awal 144 menjadi 145 naik sebesar 0,7%, dan peningkatan fleksibilitas awal 14,29% menjadi 15,08% naik sebesar 5,52%. Kata kunci: Alokasi Barang, Dedicated Based Storage, Class Based Storage
Co-Authors Adinda, Fhirra Adnan, Septian Rahmat Afiif, Rahmad Fajar Ahmad . Ahmad Chirzun Akhyar Zuniawan Alisodikin, Mochamad Aldi Annisa A. Lestari Anwar Ilmar Ramadhan Ardiansyah, M. Nashir Ari Yanuar Ridwan Arief Suwandi Asma Assa Audi Fisbert Rewa Augustina Asih Rumanti Barus, Wan Habibi Rahman Budi Santosa Budi Santosa Budi Santosa Budiman, Muhammad Fahreza Fajar Budinam, Faisal Debby Karisa Dewi Maya Sari Dewi Maya Sari Dheanty Galuh Saputri Edwin Suryajaya El Hadi, Rosad Ma’ali Endang Chumaidiyah Erlangga Bayu Setyawan Erwin Saputra Erwin Saputra Fadil Abdullah Fadil Abdullah Faizin, Agus FANDI ACHMAD Feby Z Octafani Frans Jusuf Daywin Ginang Natilla Adlina Hamada , Hilda Auliya Hardian Kokoh Pambudi Hardyanto, Muhammad Rafif Haryasena Panduwiyasa Hasari , Fadhil Ahmad I Wayan Sukania I Wayan Sukania Ilma Mufidah Isna Ibnah Mudrikah Istianto B Rahardja Istianto Budhi Rahardja Iveline Anne Marie Izzati, Inaya Jatikusumo, Amarilis Jilan Amarla Diwani Josi , Najwa Faroh Kasim, Nurhijriani Lithrone Laricha Salomon Lithrone Laricha Salomon Luciana Andrawina M. Agung Saryatmo M. Agung Saryatmo M. Derajat Amperajaya Made Arya Teguh Dvaipayana Maharani , Luh Putri Kirana Marimin , Maulanisa, Nida Fariza Maya Dewi Dyah Maharani Ma’ali El Hadi, Rosad Merliana, Karlina Muhammad Almaududi Pulungan Muttaqin , Prafajar Suksessano Nia Novitasari Nida F Maulanisa Nofi . Erni Nofi Erni Nofi Erni Nofi Erni Nofi Erni Nova Indah Saragih Nunung Nurhasanah Nurlia Delila Nurul Hijrah S Olga, Fidiana Tri Pambudi, Hardian K. Prafajar Suksessanno Muttaqin Prambudia, Yudha Pulungan, Muhammad Alamaududi Putri, Sinta Mulyani Dwi Rafi S , Muhammad Rico Adhesi Rizaldi, Artamevia Salsabila Roesfiansjah Rasjidin Rulan Dinary Runik Machfiroh Rusydiana Abdullah Salsabila, Kharisa Santo Christianto Saputri, Dheanty Galuh Septiana , Wengku Ahmad Setiawan, Erlangga Bayu Setyaningrum, Hanny Siwi Lintang Pertiwi Sri Martini Sriwana, Nur Mutia Sukarlina, Nina Suluh Widya Yakti Sylvia Madusari Taufiqur Rachman Ulfa Eka Khapso Usman , Muhammad Fajrin Fauzan Vera Veliria Wan Habibi Rahman Barus Watunglawar, Darmiolla Natasia Wawan Tripiawan Wilson Kosasih Winda Jeania Purnama Winda Jeania Purnama Wira Tri Yolanda Wira Tri Yolanda Yakti, Suluh W. Yandra Arkeman Yennie Salim Yodi Nurdiansyah Yulianti, Femi Yulius . Zuniawan, Akhyar