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All Journal Jurnal Teknik Industri KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan TEKMAPRO Journal of Industrial Engineering and Management JISI UMJ (Jurnal Integrasi Sistem Industri UMJ) REKAYASA Sistemasi: Jurnal Sistem Informasi Briliant: Jurnal Riset dan Konseptual Journal of Industrial Engineering Management EKONOMIS : Journal of Economics and Business Jurnal Sistem Cerdas STRING (Satuan Tulisan Riset dan Inovasi Teknologi) Matrik : Jurnal Manajemen dan Teknik Industri Produksi JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Jurnal Teknika Jurnal Teknik Industri Terintegrasi (JUTIN) Nusantara Science and Technology Proceedings Indonesian Journal of Industrial Engineering & Management Juminten : Jurnal Manajemen Industri dan Teknologi Journal La Lifesci Journal La Multiapp JURNAL ILMIAH GLOBAL EDUCATION Indonesian Journal of Innovation Studies Jurnal Pengbdian Teknik Mesin Golden Ratio of Mapping Idea and Literature Format JAMBURA: JURNAL ILMIAH MANAJEMEN DAN BISNIS Jurnal Sains dan Teknologi Jurnal Teknologi dan Manajemen Industri Terapan Jurnal Teknik Mesin, Industri, Elektro dan Informatika Journal of Creative Student Research Electronic Journal of Education, Social Economics and Technology IIJSE Journal Serambi Engineering (JSE) Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika Advance Sustainable Science, Engineering and Technology (ASSET) Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Academia Open Jurnal Kendali Teknik dan Sains
Rr. Rochmoeljati
Universitas Pembangunan Nasional Veteran Jawa Timur
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Analisis Keseimbangan Produksi Lower Holder dengan Pendekatan Line Balancing Pada PT. XYZ Alvionita, Selvi; Rochmoeljati, Rr.
JISI: Jurnal Integrasi Sistem Industri Vol. 12 No. 1 (2025): JISI UMJ
Publisher : Fakultas teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jisi.12.1.103-116

Abstract

Penelitian ini bertujuan untuk menyeimbangkan produksi lower holder dengan melakukan pembagian tenaga kerja yang seimbang, dan merancang aliran proses serta tata letak produksi yang efisien untuk meminimalkan waktu tunggu. Metode yang digunakan dalam penelitian ini adalah Ranked Positional Weight, Largest Candidate Rule, dan Kilbridge and Wester. Hasil penelitian menggunakan metode perusahaan line efficiency sebesar 62%, balance delay sebesar 38%, dan smoothness index sebesar 686,1. Metode Ranked Positional Weight line efficiency sebesar 62%, balance delay sebesar 38%, dan smoothness index sebesar 220,73. Metode Largest Candidate Rule line efficiency sebesar 62%, balance delay sebesar 38%, dan smoothness index sebesar 226,89. Metode Kilbridge and Wester line efficiency sebesar 62%, balance delay sebesar 38%, dan smoothness index sebesar 205,82. Maka dapat dipilih metode Kilbridge and Wester sebagai metode terbaik karena memiliki nilai smoothness index yang lebih kecil. Rekomendasi penelitian selanjutnya dapat mempertimbangkan faktor kendala teknis pada penggunaan mesin dan fasilitas produksi diperusahaan agar hasil penelitian dapat lebih optimal.
Optimization of Production Capacity Jumbo Bag by Method Theory of Constraints Brilian, Delinda; Rochmoeljati, Rr.
Journal La Multiapp Vol. 6 No. 2 (2025): Journal La Multiapp
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallamultiapp.v6i2.1920

Abstract

PT. XYZ is a company engaged in production jumbo bag with a capacity of 500–2000 kg. Increased demand occurred in jumbo bag with a capacity of 500 kg which causes problems in the production process, especially at work stations Cutting (SK-4), which experienced obstacles in the form of bottleneck due to limited resource capacity. This condition hampers efficiency and productivity, so that companies are unable to meet production targets during the period May to October 2024. This research aims to optimize production capacity jumbo bag by applying Theory of Constraints (TOC) through approach Drum-Buffer-Rope And Linear Programming which is processed using software POM-QM. Research stages include identification constraint, exploitation constraint, non-subordinatin constraint, as well as elevation constraint. From the results of this research, a solution was obtained in the form of addition shift work at the station Cutting (SK-4) through reduction shift at the station Needle Loom (SK-3) without reducing the number of operators, managed to increase the efficiency of the production process significantly. The implementation results show an increase in production time capacity from 129511 minutes to 291399.8 minutes (an increase of 26%) as well as an increase output production of 1,476 unit to 3,320 unit. Thus, the company managed to overcome obstacles bottleneck, increase operational productivity, and achieve predetermined production targets more optimally.
Analysis Defect Products in Silencers Using the New Seven Tools Method Annandita, Alifia Rizky; Rochmoeljati, Rr.
Journal La Multiapp Vol. 6 No. 2 (2025): Journal La Multiapp
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallamultiapp.v6i2.1986

Abstract

Quality is important for a product so that it can have more value than other products. To maintain quality, quality assurance (quality) is required. As is the case with silencer products produced by CV. Nyoto Plastik, silencer is a product that must maintain its quality value. Therefore, many defects in silencer products must be repaired by analyzing the causes of the defects. Based on research, the average defect in this silencer product reaches 10% within one year. New Seven Tools is a method for finding out the causes of defects based on humans, methods, materials, machines or the environment by using the seven tools contained in it. Therefore, this research aims to help maintain the quality of silencers by analyzing the causes of defects and providing suggestions for improvements to minimize defects that occur using the New Seven Tools method.
Association Rule Analysis for Sales Strategy Optimization with Apriori Algorithm Method Amelia, Avril Firda; Rochmoeljati, Rochmoeljati
Sistemasi: Jurnal Sistem Informasi Vol 14, No 4 (2025): Sistemasi: Jurnal Sistem Informasi
Publisher : Program Studi Sistem Informasi Fakultas Teknik dan Ilmu Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32520/stmsi.v14i4.5288

Abstract

PT XYZ is a manufacturing company that produces various types of industrial valves. Despite having entered the export market, the company continues to experience monthly fluctuations in order volumes due to the suboptimal use of data in formulating effective sales strategies. This study aims to identify association rules using the Apriori algorithm as the basis for sales recommendations. The analysis was conducted on transaction data from January 2024 to February 2025, using a minimum support threshold of 20% and a minimum confidence threshold of 65%, determined through exploratory analysis. The results yielded 14 first-level (L1) rules, 21 second-level (L2) rules, and 8 third-level (L3) rules, indicating associations between products that can inform cross-selling schemes and product sampling strategies. These patterns were used to design sales strategies, such as cross-selling and product bundling, to increase the average value per transaction, as well as product sampling to introduce less popular items. GV and CV products showed the strongest association, with a support value of 43%, a confidence level of 77%, and a lift value of 1.5—indicating a strong potential for increased sales when these products are offered together. These personalized strategy recommendations are expected to improve customer loyalty, expand market reach, and drive sustainable growth in the company’s sales volume.
Optimization of the Production Process using the Theory of Constraints (TOC) Method based on Drum-Buffer-Rope (DBR) Improvements Widyarsa, Destiara Nabila; Rochmoeljati, Rr.
Sistemasi: Jurnal Sistem Informasi Vol 14, No 4 (2025): Sistemasi: Jurnal Sistem Informasi
Publisher : Program Studi Sistem Informasi Fakultas Teknik dan Ilmu Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32520/stmsi.v14i4.5292

Abstract

One footwear manufacturing company located in Surabaya has experienced an increase in production demand for both women's and men's sandals in recent years. The main issue faced by the company is the presence of bottlenecks at specific workstations due to unbalanced capacity, which disrupts the smooth flow of the production process. To address this issue, the study applies the Theory of Constraints (TOC) method based on the Drum-Buffer-Rope (DBR) concept, in combination with Linear Programming (LP). The research stages include identifying the constraints, exploiting the constraints, subordinating non-constraints, and elevating the constraints. The analysis results indicate that the coating and bonding workstations are the main constraints affecting the system's throughput. To overcome this, overtime was added at these workstations to increase production capacity. The implementation results showed an improvement in throughput from IDR 39,849,260 with 1,594 units to IDR 46,490,330 with 1,860 units, reflecting a 14.3% increase. These findings demonstrate that the application of TOC and DBR can effectively balance the production flow, optimize bottleneck workstations, and enhance overall production throughput.
Woven Bag Production Scheduling With Heuristic Pour Algorithm and Earliest Due Date Afriza, Ajeng; Rochmoeljati, Rr.
Journal La Multiapp Vol. 6 No. 3 (2025): Journal La Multiapp
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallamultiapp.v6i3.1971

Abstract

PT. XYZ is a company engaged in manufacturing, especially in producing woven bags, which are plastic sacks made of Polypropylene (PP). PT. XYZ faces the problem of too long makespan time in the application of the First Come First Serve (FCFS) method. Although considered simple, FCFS is less efficient in complex production, especially with variations in processing time. As a result, jobs with longer processing times are often prioritized, resulting in delays in shorter jobs. This causes a longer total completion time and requires the implementation of a more efficient scheduling method to minimize makespan and improve production performance. The purpose of this study was to determine the optimal woven bag production job and to reduce makespan and delays in woven bag production with the Heuristic Pour Algorithm and Earliest due date (EDD) at PT. XYZ. From the calculation results using the first come first serve method with the job sequence 1-2-3-4-5-6, the total makespan value was 33119 or 551 hours 59 minutes. Meanwhile, the calculation using the heuristic pour algorithm method and Earliest due date (EDD) obtained the sequence of jobs 3-2-4-1-6-5 with a total makespan of 28528 minutes or 475 hours 28 minutes. The calculation using EDD also showed a decrease in lateness for each job, where the lateness of job 3 was the smallest, namely -10 days with a due date of 17 days. Based on this research, the percentage decrease in makespan value was 13.86%.
STRATEGI PENINGKATAN EFEKTIFITAS KINERJA MANAJEMEN SDM DENGAN PENDEKATAN SWOT DAN AHP DI PT XYZ Pramudya, Kaka Arya; Rochmoeljati, Rr.
JAMBURA: Jurnal Ilmiah Manajemen dan Bisnis Vol 8, No 1 (2025): JIMB - VOLUME 8 NOMOR 1 MEI 2025
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37479/jimb.v8i1.31751

Abstract

Penelitian ini bertujuan untuk merumuskan strategi peningkatan efektivitas kinerja manajemen sumber daya manusia (SDM) di PT XYZ dengan menggunakan pendekatan SWOT (Strengths, Weaknesses, Opportunities, Threats) dan Analytic Hierarchy Process (AHP). Pendekatan SWOT digunakan untuk mengidentifikasi faktor internal dan eksternal yang memengaruhi kinerja manajemen SDM, sedangkan AHP diterapkan untuk memberikan pembobotan pada setiap faktor sehingga strategi yang dirumuskan memiliki dasar prioritas yang terukur. Penelitian ini dilakukan dengan metode pengumpulan data melalui observasi, wawancara, dan kuesioner yang dirancang untuk mengevaluasi tingkat kepentingan masing-masing faktor. Hasil analisis SWOT mengidentifikasi 16 faktor yang memengaruhi kinerja SDM, yang terbagi ke dalam empat kategori, yaitu kekuatan, kelemahan, peluang, dan ancaman. Dengan menggunakan AHP, setiap faktor diberikan bobot prioritas yang memungkinkan perusahaan untuk fokus pada strategi yang paling relevan dan berdampak besar. Berdasarkan hasil pembobotan, penelitian ini merekomendasikan tiga strategi utama. Pertama, peningkatan budaya kerja HEBAT melalui pelatihan berkelanjutan dan sistem penghargaan berbasis kinerja untuk meningkatkan motivasi dan produktivitas karyawan. Kedua, adopsi teknologi baru untuk mengimbangi perkembangan kompetitor sekaligus menciptakan keunggulan kompetitif, termasuk pemanfaatan teknologi digital dalam pengelolaan SDM. Ketiga, penyusunan standar operasional prosedur (SOP) yang jelas dan terintegrasi untuk memperbaiki koordinasi antarbagian dan meningkatkan efisiensi operasional. 
Pengenalan Biodiversitas Melalui Kreativitas Mahasiswa KKN: Implementasi Papan Nama Tanaman Sebagai Media Edukasi Lingkungan di Kelurahan Condongcatur Sholeha, Fitriatus; Marcella, Sania; Shafa, Aura Diva; Faris R, Mohamad; Rahmadianto, Raihan; Windra R, Harys; Fatihul F, Ahmad; Widyawati, Diana; Rebeka P, Adhe; Sinaga, Boriski; Rochmoeljati, Rochmoeljati; Sumiati, Sumiati
abdimesin Vol. 5 No. 1 (2025): Abdi-mesin
Publisher : UPN "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/abdimesin.v5i1.77

Abstract

Biodiversitas adalah keragaman diantara makhluk hidup, dari berbagai sumber termasuk daratan, pesisir, lautan dan ekosistem perairan lainnya serta kompleksitas ekologis dimana mereka merupakan bagiannya. Ketidakpahaman masyarakat tentang keberagaman hayati merupakan masalah sentral yang perlu diatasi. Kurangnya informasi tentang tanaman lokal dan fungsinya dalam ekosistem dapat menyebabkan kurangnya apresiasi terhadap keanekaragaman hayati dan dampak negatif terhadap keseimbangan lingkungan. Maka dari itu, perlu adanya upaya yang kreatif dan edukatif untuk membangkitkan minat dan kepedulian terhadap biodiversitas. Tujuan utama kegiatan ini adalah meningkatkan pengetahuan masyarakat Kelurahan Condongcatur tentang biodiversitas tanaman lokal melalui implementasi papan nama tanaman. Manfaatnya melibatkan peningkatan kesadaran lingkungan, peningkatan pemahaman terhadap keberagaman hayati, dan mendorong partisipasi masyarakat dalam pelestarian tanaman lokal. Sehingga dengan adanya kegiatan ini, dapat membantu Masyarakat dalam memahami lebih dalam terkait suatu tanaman melalui manfaat yang dihasilkan dan nama latinnya. Peran mahasiswa Kuliah Kerja Nyata (KKN) Teknik industri dalam melibatkan kreativitasnya untuk meningkatkan kesadaran masyarakat terhadap biodiversitas menjadi esensial. Implementasi papan nama tanaman dianggap sebagai inovasi yang dapat membantu menciptakan hubungan yang lebih erat antara masyarakat dan lingkungan lokal mereka. Selain itu, papan nama disini nantinya akan berfungsi sebagai pengenal tanaman dan edukasi yang lebih terkait suatu tanaman tersebut.
Corrugated Box Production Optimization Using Theory of Constraints (TOC) and DBR - Drum-Buffer-Rope (DBR): Optimasi Produksi Corrugated Box Menggunakan Theory of Constraints (TOC) dan DBR - Drum-Buffer-Rope (DBR) Budiani, Dian Nissa Fitri; Rochmoeljati, Rr
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1422

Abstract

General Background: Efficient production processes are critical for manufacturing companies to meet output targets and maintain competitiveness. Specific Background: PT XYZ, a corrugated box manufacturer, is experiencing production delays due to bottlenecks at specific workstations. Knowledge Gap: Previous studies have rarely explored the integrated application of the Theory of Constraints (TOC) and Drum Buffer Rope (DBR) methods specifically within the corrugated box industry. Aims: This study aims to identify bottlenecks and propose improvements in PT XYZ’s production process by applying TOC and implementing the DBR scheduling method. Results: Bottlenecks were found at the Converting (SK-2) and Stitching (SK-4) workstations. Through the five focusing steps of TOC and DBR’s structured flow management using drums, buffers, and ropes, along with extended work hours at bottleneck stations, throughput increased from IDR 5,424,572 to IDR 8,040,195—a 32.53% rise. Novelty: This study presents a comprehensive application of TOC and DBR in the corrugated box sector, combining it with linear programming to optimize resource allocation and bottleneck exploitation. Implications: The findings highlight how TOC and DBR can serve as a strategic framework to improve operational efficiency and output in manufacturing systems constrained by limited capacity. Highlights: Converting and Stitching stations identified as production bottlenecks. Overtime at bottlenecks increased throughput by 32.53%. TOC and DBR integration proved effective in streamlining production. Keywords: Drum Buffer Rope, Corrugated Box, Throughput, Bottleneck, Theory of Constraints
Waste Reduction in Fertilizer Manufacturing Through Lean Six Sigma and 5S Implementation Meisufi, Ruro Wiranti; Rochmoeljati, Rr.
Journal La Lifesci Vol. 6 No. 2 (2025): Journal La Lifesci
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallalifesci.v6i2.2197

Abstract

This study aims to analyze the waste that occurs in the fertilizer production process at PT XYZ and provide suggestions for improvement with the Lean Six Sigma approach and the 5S method (Seiri, Seiton, Seiso, Seiketsu, Shitsuke). Data was collected through observation, interviews, and questionnaires, then analyzed using the DMAIC stages and tools such as Value Stream Mapping, RCA, and VALSAT. The results showed the three highest wastes were defects, motion, and transportation, with an average DPMO value of 32,706.67 and a sigma level of 3.43. The proposed improvements focused on implementing 5S to increase work efficiency and reduce non-value-added activities. After the improvement, the process efficiency value increased by 6.86%, indicating the effectiveness of the applied method.
Co-Authors Adham Roihan Azriel Irfani Afriza, Ajeng Agustina, Mega Alfan Afiyudin Alief Wahyu Pratama Alvionita, Selvi Amalia, Rochmatul Amelia, Avril Firda Annandita, Alifia Rizky Benedictus V.B.P. Benedictus Vibriyanto Bagas Prakosa Berliana D. Novitasari Berliana Dian Novitasari Brilian, Delinda Budiani, Dian Nissa Fitri Bustomy, Andrean Cantika, Devani Nendi Aurillia Chori Dwi Azizah Christabela Jesselyn Citra Wahyuning Dama Yanti, Alviani Dewi Aisarunnisa' Maunah Dimas Wandhika D Dira Ernawati Endang Pudji Widjajati Erlangga, Muhammad Daffa Erlina Erlina Fadilla Umeida Putri Faishal Hidayatulloh Faizal, M. Rizki Nur Fanani, Handre Syahrul Farica Raisa Vania Faris R, Mohamad Fatharisa Ingke Maulida Fatihul F, Ahmad Fenny Novianti Ferina Indah Lusiana Ferina Indah Lusiana Ferraldo Kusuma Artono Putra Ferraldo Kusuma Artono Putra Fibio Isnando Hariatmaja Pradana Fibio Isnando Hariatmaja Pradana Fitria Novi Ariestiyani Fuadah, Layin Ike Jihan Nabila Iriani Iriani Isna Nugraha Isna Nugraha Ivonne Rakha Salsabila Ivonne Rakha Salsabila Kamal Husein Kamal Husein Kezia Grace Sudarman Khusnun Nabila Khusnun Nabila Layin Fuadah Marcella, Sania Mardila Nur Imamah Marisa Tri Indra Nayu Aini Kurnila Marsya Laila Ahyaliya Maunah, Dewi Aisarunnisa' Meisufi, Ruro Wiranti Moch Taufik Hidayat Moch Taufik Hidayat Mochamad Ismail Zakaria Mochamad Ismail Zakaria Muhammad Hadziqul Afkar Muhammad Ilham Romadoni Muhammad Ricky Suryawan Muhammad Rizki Kurniawan Muhammad Zainur Roziqin Mutia Meilanda Nababan, Yohanes Nafa Artha Cahaya Mulia Nafa Artha Cahaya Mulia Nafa Artha Cahaya Mulia Nugraha, Isna Nugroho, Rosa Novarian Agninditya Pradana, Billy Gandis Prakosa, Albertus Adriyanto Satrio Pramudya, Kaka Arya Prasetyo Mukti Prasetyo Mukti Pratama, Alief Wahyu Primadhiya, Fairuzzayyan Pristyanto, Yafie Putra, M. Rizqy Ifaldhi Qanita Zahira Muhar Arifin Qothrunnada, Alisa R. A. Luthfi Asia Fergisya Raditya Dwi Firmansyah Raditya Y E Rafida, Halimas Nafi Rahandi Ramadhan Rahmadianto, Raihan Rahmawati, Dea Ramadhan, Muhammad Afif Ramadhani, Muthia Dita Rauhul Rahman Adam Rebeka P, Adhe Ridwan Alief Ramdhan Adi Ruro Wiranti Meisufi Sastya, Nur Cholifah Shafa, Aura Diva sholeha, fitriatus Sinaga, Boriski Sinta Dewi Sofia Fitri Anasari Sofia Fitri Anasari Subono, Muhammad Wibbie Wiweka Sumiati Sumiati Surya M Ramadhan Syarifah, Faranisa Aulia Ar Rahma Tiara Nuriyah Sani Tivani Nava Arier Tranggono Tranggono Valentino, Eki Vaundra Cunning Hangesthi Vaundra Cunning Hangesthi Widyarsa, Destiara Nabila Widyawati, Diana Windra R, Harys Wisnu Wardana, Wisnu Ya Fachrul Rasyid Ya Fachrul Rasyid Yustina N Yustina Ngatilah Zella Azzahra Achmadani