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Optimization Unloading Time Container Use Multiple-Channel Queuing Model at Car Industry Fitra, Adi; Suhendra, Suhendra; Wiyatno, Tri Ngudi
IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 5, No 3: October 2024
Publisher : Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijiem.v5i3.24198

Abstract

The development of the car assembly industry in Indonesia is increasing from year to year and competition is getting tighter. To be able to compete in the competition, a system with low costs is needed. Logistics is an activity that does not add value and logistics is also included in the price formation elements. Logistics costs in Indonesia are high, reaching 30% of the total product. Waiting time for containers to be unloaded is a hidden cost and can reduce service levels. The aim of this research is to reduce waste when waiting to unload containers which is related to the capacity of the area waiting to unload containers. The method used is the Multiple-Channel Queuing Model queuing method where analysis is carried out to reduce waiting time so that there are no containers waiting outside the cross-dock warehouse. The results of the research found that by increasing the number of containers unloading docks, the unloading time could be reduced from 2.25 hours to 1 hour and increase the service level where the container waiting area which initially required 5 parking lots became 2 container parking lots. Not only can it reduce the number of queues outside the warehouse and reduce waiting times. In this study, it was found that by adding docking from 2 to 3, it can make a cost reduction of 1 million per month because there is no need to pay overtime costs to unload containers.
Sigma level choice examination in executing incline Lean Six Sigma (LSS) within the material and item material industry Kurnia, Hibarkah; Wiyatno, Tri Ngudi; Nugroho, Bayu Hari; Nuryono, Arif
Operations Excellence: Journal of Applied Industrial Engineering Vol. 17 No. 1 March 2025
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/oe.2025.v17.i1.134

Abstract

Many manufacturing industries in the world use the Lean Six Sigma (LSS) approach in analyzing and improving waste activities and reducing production defects. The Textile and Product Textile (TPT) industry can also be easily implemented because this industry is a labor-intensive industry. However, in its development, no one has analyzed the sigma level in the TPT industry by reviewing studies. The sigma level obtained from various sources and various types of TPT industries cannot yet be concluded about the sigma level value for each type of industry. This research points to look at writing articles related to LSS, particularly within the TPT industry. This inquire about employments the clustering strategy, specifically a refinement research strategy taken within the TPT industry within the writing review. This ask around found dispersions of 55 articles that were effectively studied inside the composing with the Six Sigma technique being the preeminent broadly utilized and more explore objects based on the tall quality of 41 articles. Gathering by industry section is the piece of clothing industry with 14 articles that reinforce the LSS. In the interim, based on nation groupings, the biggest number is Indonesia with 19 articles. It is trusted that this inquire about commitment can ended up a reference for anybody who will utilize LSS within the fabricating industry.
PENGARUH MARKETING MIX DAN PERCEIVED SERVICE QUALITY TERHADAP REVISIT INTENTION YANG DIMEDIASI PATIENTS’ PERCEIVED SATISFACTION PRIMAYA HOSPITAL BEKASI BARAT Yadi Haryadi; Taufiq Rachman; Tri Ngudi Wiyatno
Journal of Economic, Bussines and Accounting (COSTING) Vol. 7 No. 6 (2024): COSTING : Journal of Economic, Bussines and Accounting
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/costing.v7i6.13009

Abstract

Penelitian ini berlatar belakang kecenderungan terjadinya penurunan jumlah pasien rawat inap yang kembali dirawat di Rumah Sakit Primaya Bekasi Barat. Tujuan pelaksanaan penelitian ini adalah untuk mengetahui dan menganalisis pengaruh marketing mix dan perceived service quality terhadap revisit intention yang dimediasi oleh patients’ perceived satisfaction. Sampel penelitian ini adalah pasien rawat inap yang kembali dirawat di Rumah Sakit Primaya Bekasi barat sebanyak 283 orang dari total rata-rata populasi selama Januari – Juni 2024 sebanyak 963 orang pasien. Teknik pengumpulan data yang digunakan adalah kuesioner yang disebarkan secara online menggunakan G-Form melalui aplikasi whatsapp. Metode kuantitatif yang digunakan adalah analisis jalur untuk mencari model persamaan struktural yang cocok dengan bantuan SmartPLS 4.1.0. Hasil penelitian menyimpulkan: 1) marketing mix berpengaruh positif dan signifikan terhadap patients’ perceived satisfaction.; 2) perceived service quality berpengaruh positif dan signifikan terhadap patients’ perceived satisfaction.; 3) marketing mix berpengaruh positif dan signifikan terhadap revisit intention; 4) perceived service quality berpengaruh positif dan signifikan terhadap revisit intention; 5) patients’ perceived satisfaction berpengaruh positif dan signifikan terhadap revisit intention; 6) patients’ perceived satisfaction. mampu memediasi pengaruh positif dan signifikan marketing mix terhadap revisit intention; dan 7) patients’ perceived satisfaction. mampu memediasi pengaruh positif dan signifikan perceived service quality terhadap revisit intention
An Implementation Analysis of AHP-TOPSIS and Music-3D for Optimizing Spare Part Inventory Control (Case Study: PT. Bati) Leo, Kelvin; Rahayu, Siti; Wiyatno, Tri Ngudi
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.v11i1.36786

Abstract

This study proposes an integrated spare part inventory control decision-making model using AHP-TOPSIS and MUSIC-3D. While previous studies applied these methods independently, this research combines them within a general trading context to address procurement prioritization and inventory segmentation. AHP was used to assign weights to three inventory criteria: annual consumption (ABC), turnover rate (FSN), and unit price (HML). These weights informed the TOPSIS ranking of 50 spare parts, identifying high-priority items such as MRCT 430 and WLOR XR96. MUSIC-3D further classified items into 16 multidimensional categories to support differentiated control strategies. A one-month implementation at PT. BATI demonstrated improvements in stock control and cost efficiency. The model provides a structured, scalable framework for companies facing high inventory complexity. Keywords: Inventory Management, AHP, TOPSIS, MUSIC-3D, Spare parts, Multi-Criteria Decision Making
Identifikasi Penyebab Cacat Produk Corrugated Medium Paper Menggunakan Metode Fmea (Failure Mode & Effect Analysis) Ifan Aly Rifqi; Hendi Herlambang; Tri Ngudi Wiyatno
Journal Scientific of Mandalika (JSM) e-ISSN 2745-5955 | p-ISSN 2809-0543 Vol. 6 No. 9 (2025)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/10.36312/vol6iss9pp3556-3568

Abstract

This research aims to identify the causes of production defects in Corrugated Medium Paper (CMP) products at a paper manufacturing company using the Failure Mode and Effect Analysis (FMEA) method. Based on observations and production data from the period of September to December 2024, it was found that the product defect rate reached 2%, exceeding the company’s target of 0.3%. The main type of defect identified was unstable grammage, with the highest Risk Priority Number (RPN) of 128, indicating the need for special attention. The FMEA method was applied through nine stages to analyze failures in the production process. The analysis results show that the primary causes of product defects involve human factors, machinery, raw materials, methods, and the environment. One significant cause was operator inaccuracy during the raw material sorting process, substandard raw material quality, and lack of maintenance on machine components such as the Auto Valve Dilution. The analysis was complemented with a Fishbone Diagram to identify the root causes of the problem. Improvement recommendations include enhanced supervision during raw material sorting, more rigorous inspections every 30 minutes during production, and regular checks and repairs on critical machine components. The implementation of these measures is expected to minimize production defects, improve product quality, increase productivity, and reduce company losses
Analisis Pengendalian Akurasi Stock Opname Menggunakan Metode Six Sigma DMAIC di PT X Rizaldy, Muhammad; Tri Ngudi Wiyatno; Arvita Emarilis Intani
JOURNAL OF INDUSTRIAL AND MANUFACTURE ENGINEERING Vol. 9 No. 1 (2025): EDISI MEI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jime.v9i1.14435

Abstract

PT. X merupakan salah satu perusahaan yang bergerak di bidang elektronik. Dalam proses stock opname terdapat selisih antara stok sistem dengan stok aktual pada bulan Januari sampai Desember 2024. Jumlah rata-rata persentase selisih yaitu 2,49% yang tidak memenuhi target manajemen yang memiliki target 2%. Rata-rata hasil nilai DPMO (Defects per Million Opportunities) yang dihitung sebesar 61131,94 dan rata-rata nilai sigma sebesar 3,05. Nilai ini masih cukup baik dibanding rata-rata industri umum di indonesia yaitu sebesar 3 sigma. Penelitian ini bertujuan untuk mengetahui faktor-faktor yang menjadi penyebab terjadinya selisih stok pada proses stock opname, untuk mendeskripsikan dan menganalisa pengendalian akurasi stok melalui pendekatan six sigma dengan lima tahapan yaitu DMAIC (define, measure, analyze, improve, control), serta memberikan solusi perbaikan stock opname yang terjadi pada line A PT. X. Dengan melakukan penelitian yang menggunakan pendekatan metode Six Sigma DMAIC ini, diharapkan pengendalian dan perbaikan akurasi stok membuat stock opname semakin membaik.
Faktor Pengaruh Reputasi dan Kualitas Layanan Terhadap Minat Beli Ulang Konsumen Pada Platform E-commerce Shopee Nurmanto, David; Mulyanto, Heru; Wiyatno, Tri Ngudi; Purnamasari, Pupung; Putra, Hamzah Muhammad Mardi
Jurnal Kajian Ilmiah Vol. 24 No. 1 (2024): January 2024
Publisher : Lembaga Penelitian, Pengabdian Kepada Masyarakat dan Publikasi (LPPMP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/h1ctjy38

Abstract

The use of technology and the internet in the era of the industrial revolution 4.0 has the potential to improve product marketing strategies. E-commerce, as a product sales platform, is currently becoming popular and widely used. The number of e-commerce users continues to grow because of the ease of getting the desired product. Low interest in repurchasing needs to be considered in management's perspective to improve strategic planning and company services. The researchers point out that repurchase intentions are a much-studied topic in the current era of globalization. For this reason, this research will examine the influence of brand reputation and service quality on repurchase interest on the Shopee e-commerce platform. Data processing using SmartPLS software. The results of the validity and reliability tests for the indicators used showed validity and reliability and the results of the classical assumption test showed no multicollinearity in the variables. The results of the hypothesis test partially show that brand reputation does not have a significant influence on repurchase interest, while service quality has a significant influence on repurchase interest.
EVALUASI KINERJA PEMASOK DI PT XYZ DENGAN MENGGUNAKAN METODE GABUNGAN PURCHASING PORTOFOLIO MATRIX (PPM) DAN SUPPLIER POTENTIAL MATRIX (SPM) Aji, Satria Bagus; Rahayu, Siti; Wiyatno, Tri Ngudi
G-Tech: Jurnal Teknologi Terapan Vol 9 No 2 (2025): G-Tech, Vol. 9 No. 2 April 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i2.6822

Abstract

The FMCG manufacturing industry faces complex challenges in the supply chain, where supplier performance evaluation is a crucial factor in maintaining production continuity. PT XYZ currently conducts supplier evaluations in a general manner without considering specific segmentation, making it less effective in identifying strategic suppliers and managing risks. The Purchasing portfolio matrix classifies raw materials into strategic, leverage, bottleneck and non-critical groups based on supply risk and profit impact. Meanwhile, the Supplier Potential Matrix (SPM) adds the dimensions of supplier capability and willingness in innovation and collaboration. The combination of these two methods can enhance the effectiveness of supplier evaluation, support procurement strategies, and ensure more optimal business relationships. The weighting of each criterion will be carried out using the Best-Worst Method. Next, the scoring process is conducted based on 13 agreed criteria for each evaluated supplier, totaling 148 suppliers. The results of data processing will be used for segmentation using a hybrid PPM-SPM model. Recommendations are provided for selecting the appropriate supplier relationship management strategy for each supplier segment.
Comparative Analysis of Random Forest and Support Vector Machine for Sundanese Dialect Classification Using Speech Recognition Features Anshor, Abdull Halim; Wiyatno, Tri Ngudi
Jurnal Sisfokom (Sistem Informasi dan Komputer) Vol. 14 No. 2 (2025): MEY
Publisher : ISB Atma Luhur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32736/sisfokom.v14i2.2347

Abstract

This study investigates the classification of West and South Sundanese dialects using Random Forest (RF) and Support Vector Machine (SVM). Using a dataset of 100 recordings with features extracted via Mel Frequency Cepstral Coefficient (MFCC), models were evaluated by accuracy, precision, recall, and F1-score. Results show RF achieved an accuracy of 93.33%, outperforming SVM's 73.33%. The analysis demonstrates that RF is more reliable in distinguishing dialectal features. This research contributes to regional speech recognition, supporting language preservation and improved dialectal analysis.
Penyuluhan Inovasi Usaha Kecil Menengah (UKM) dan Organisasi Melalui Transformasi Digital Kurnia, Hibarkah; Wiyatno, Tri Ngudi; Sulaeman, Asep Arwan; Nuryono, Arif
Jurnal Pelita Pengabdian Vol. 3 No. 1 (2025): Januari
Publisher : DPPM Universitas Pelita Bangsa

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

Abstract

Pertumbuhan ekonomi lokal telah menjadi fokus utama di banyak negara, dengan UKM dan organisasi menjadi motor penting dalam perekonomian. Peran vital UKM dan organisasi dalam menciptakan lapangan kerja, menggerakkan pertumbuhan, dan meningkatkan inklusivitas ekonomi telah diakui secara luas. Namun terdapat tantangan yang dihadapi oleh UKM dan organisasi, terutama dalam mengadopsi inovasi teknologi, menjadi kritis dalam upaya mereka untuk berkembang dan berkontribusi secara optimal terhadap pertumbuhan ekonomi lokal. Pengabdian ini bertujuan untuk memberikan wawasan yang lebih dalam tentang bagaimana inovasi teknologi dapat didorong di kalangan UKM dan organisasi untuk mendukung pertumbuhan ekonomi lokal yang inklusif dan berkelanjutan. Metode yang digunakan pada pengabdian ini dengan melakukan penyuluhan secara daring selama 1 hari dengan model penyuluhan secara teori dan demontrasi, sesi tanya jawab dan diskusi antara peserta dan narasumber. Pengabdian ini menghasilkan bahwa UKM dan organisasi yang mampu mengadopsi teknologi memiliki potensi besar untuk menjadi pilar dalam ekosistem ekonomi lokal yang kuat, memberikan kontribusi yang signifikan pada pertumbuhan ekonomi, penciptaan lapangan kerja, dan keberlanjutan ekonomi di tingkat lokal. Dengan dukungan yang tepat, UKM dan organisasi dapat menjadi kekuatan penting dalam memajukan ekonomi lokal menuju arah yang lebih berkelanjutan dan inklusif.
Co-Authors ., Supriyati . Abdul Halim Anshor ADI FITRA Agustian, Sukri Aida Fitri Aji, Satria Bagus Alamsyah, Muhammad Riyan alfian, Edi Alvarezy, Ryan Alviani, Rani Aminurdin, Majid Anandartiana, Wawan Gunawan Andini Putri Riandani Andre Amara Andri Firmansyah Andrison Angelina Latuharhary, Rossy Anggara, M. Hatta Ari Anshor, Abdull Halim Aqbar, Ikbal Ardhi, Hendra Yunianto Ardiyansyah Ari Ridwan Subakti Arif Nuryono, Arif Arif Sutrisno Arnani R, Retno Dwi Arrasyid, Ayata Arum Tarina Arvita Emarilis Intani Aspandra, Rahadian Astuti, Maharani Dwi Ats-Tsauri, Muhammad Ibrahim Azhar, Muhammad Helmi B. Juliantoro, Krisna Bagusromadhan, Trisno Ajisantoso Balazi Gea Chise Midiantyka Dadang Heri Kusumah Danang Aji, Rizky Daril Euro Adrian Darmawan, Heru Dede Agus Imam Bahahudin Dendi Wahyudi Devi Artanti Devi Haryanti Dewi Kurniasih Didin Sjarifudin, Didin Dwi Indra Prasetya Dwi Prasetyo, Novian Edi Widodo erwin barita tambunan Fakhri Luthfiyana Rafif Farhan, Aan Fathoni Thohir Fathul Arifin Febrinasari, Tantry Fibi Eko Putra firmansyah, Afif Fitri Rezeki Gian Rijaldi Gusman Simon Hadikristanto, Wahyu Hadikristanto Hamzah Muhammad Mardi Putra Hardiansyah Hardiansyah Hendi Herlambang Hermawan, Dicky Heru Darmawan Heru Mulyanto Hia, Sefania Hidayah, Zulfa Zakiatul Hidayat, Ade Nurul Ifan Aly Rifqi Ikhsan Romli Indra Gunawan Indra Setiawan Indra Setiawan indrianto, elsa Indriyani Achmad, Listian Intani, Arvita Emarilis Intani, Arvita Emrilis Irvan Firdaus Irwati, Dwi Jamiyati, Ani Jimmy Alfaruqi Ramadan Josef Anis, Billy Junaedi, Putra Kartini, Tri Mulyani Krismanto, Rendi Kustiwan, Susan Lastri Sulastri Leni Ratnasari Leo, Kelvin M. Rofih Maman Hariana Maryadi, Dery Maulana, Donny Ma’mun, Mohamad Sukron Muhamad Fatchan Muhamad, Mamad Muhammad Ali Yafi Yafi Muhammad Fatchan MUHAMMAD RIZALDY, MUHAMMAD Muhammmad Rizki muhidin, asep Muslim, Ade Nasihardani, Dana Nawangsih, Ismasari Nida An Khofiyah Novi Sari Dewi Nugraha, Rifal Nugroho, Bayu Hari Nugroho, Rifal Nur Fahmi Dwiyansah Nur Ilman Ilyas Nuraini, Afra Nurastuti, Preatmi Nurhidayanti, Nisa Nurmanto, David Omanudin Omanudin Panggalih, Barleyan Simon Tatag Panji Pasatrio, RahmanPasatrio Pradini, Purnama Sakhrial Prasetya, Dwi Indra Pujianto, Hendri Pupung Purnamasari Putra Damai Galoh Putra, Alfandias Seysna Putra, Fibi Eko Putra, Hamzah M Mardi Putri Nabila Adinda Adriansyah Putri Rizki Amalia Putri, Isria Miharti Maherni Putri, Nicky Rafi, Affan Ramadhani, Yunita ramdhani, alvin Ratoko, Sita Kurniaty Rendi Fajar Utama Edri Rendi Fajar Utama Edri Renno Satrio Rezha Adhitya Fachraji Riandani, Andini Putri Rina Mutiara, Rina Risky Bambang Sutrisna Rizky Ramdani Miftahul Fadilah Rudy Setiawan Santoso, Trisno Aji Saputra, Jacky Cahaya Sari, Putri Nawang sarwo edy Sasongko, Ananto Tri Satibi, Ilham Septian Arie Prayoga Setiawan Setiawan Setiawan Siddik, Abdullah Fawzy Siti Rahayu Siti Rahayu Suara, Jaka Sudaryanto Sudaryanto SUDARYANTO SUDARYANTO Sugiyanto, Laras Ati Suhartinah, Siti Suhendra Suhendra Suhendra Suhendra Sulaeman, Asep Arwan Sumarta, Sumarta Sunita Dasman Supriyanto Supriyanto Supriyati Supriyati . Supriyati Supriyati Susan Kustiwan Sutriyanto, Dwi Syahwildan, Muhammad Syarah Rizkia Feriaty, Syarah Rizkia Tan, Emmelia Taufiq Rachman Taufiq Rachman, Taufiq Totok Yuliarto Toyosito, Rakay Edhiargo Wahyu Hadikristanto Wahyudi Hidayat, Wahyudi Widya, Adi Rusdi Widyastuti, Mega Widyawati, Dhea Nur Wiradarma, Muhammad Visnhu Wiyanto Wiyanto Yadi Haryadi Yahya, Adibah Yuli, Asnonik Yuswanto Zavero, Chicko Al