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All Journal OPERATION EXCELLENCE: Journal of Applied Industrial Engineering Jurnal Teknik Industri Terintegrasi (JUTIN) Journal of Artificial Intelligence and Digital Business
Putri, Hana Silvia Dwi
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Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Implementation of QCC method to reduce defects in rear combination lamp gaps on MPV vehicles in the automotive industry Setiawan, Setiawan; Kurnia, Hibarkah; Nasihardani, Dana; Putri, Hana Silvia Dwi
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.i1.132

Abstract

The appearance of four-wheeled vehicles is the first aspect observed by customers. Defects in appearance, such as gaps in the rear combination lamps, can reduce the competitiveness of Multi-Purpose Vehicle (MPV) products. Such defects affect product quality and customer satisfaction, making it essential for companies to minimize defects to enhance market competitiveness. This study applies the QCC (Quality Control Circle) method with a PDCA (Plan-Do-Check-Action) approach, supported by the 8-step problem-solving process and 7 QC tools. The method aims to identify the root causes of defects and implement appropriate corrective actions. In its implementation, the Plan phase involves identifying the problem and analyzing root causes using QC tools such as Pareto charts and fishbone diagrams. In the Do phase, corrective actions are carried out by adjusting processes or materials. The Check phase includes evaluating the results of the corrective actions, while the Action phase ensures the changes are sustained over time. Using the QCC method, defect rates per unit decreased from 0.130 to 0.004.
Analisis Pengendalian Persediaan Bahan Baku Tahu Home Industri Bapak Taryoto Menggunakan Metode Economic Order Quantity (EOQ) Ubaeddillah, Saeful; Putri, Hana Silvia Dwi; Fatchan, Muhamad
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 1 (2026): January
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i1.55194

Abstract

Raw material inventory control plays a crucial role in ensuring the continuity of production in tofu home industries that depend on the daily availability of soybeans. The tofu home industry owned by Mr. Taryoto still applies a simple inventory system, which may cause cost inefficiencies and the risk of raw material shortages. This study aims to analyze soybean raw material inventory control using the Economic Order Quantity (EOQ) method to determine the optimal order quantity, safety stock, and reorder point. This research employs a quantitative descriptive approach with data collected through observation, interviews, and documentation. The research sample consists of soybean usage and purchasing data over a one-year period. The results show that the optimal order quantity is 300 kg per order with a purchasing frequency of 72 times per year, an average inventory of 150 kg, a safety stock of 20 kg, and a reorder point at an inventory level of 140 kg. The implementation of the EOQ method improves inventory efficiency and supports sustainable production continuity.
Penerapan Metode Blocplan untuk Efisiensi Tata Letak Gudang di PT Nusavaria Chandra Sentosa Syamil, Rafi Akbar; Windyatri, Hasyrani; Putri, Hana Silvia Dwi
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 5 No. 1 (2026): Februari - April
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v5i1.6832

Abstract

Tata letak gudang yang kurang optimal pada PT Nusavaria Chandra Sentosa menyebabkan jarak perpindahan material antar area utama seperti gudang, ruang service, ruang administrasi, dan area parkiran/loading menjadi relatif jauh sehingga menurunkan efisiensi operasional secara signifikan. Penelitian ini bertujuan merancang ulang tata letak gudang untuk meminimalkan jarak perpindahan material serta meningkatkan kelancaran alur kerja menggunakan metode Blocplan berbasis Activity Relationship Chart (ARC). Penelitian menggunakan pendekatan kuantitatif-deskriptif dengan pengumpulan data melalui observasi langsung, wawancara, dan pengukuran lapangan. Analisis dilakukan dengan menghitung jarak perpindahan menggunakan metode Manhattan (rectilinear distance) dan Euclidean untuk membandingkan layout eksisting dengan layout usulan secara komprehensif dan terukur. Hasil perancangan menghasilkan beberapa alternatif tata letak dan dipilih Layout 4 sebagai rancangan terbaik berdasarkan nilai score dan total jarak perpindahan. Layout usulan mampu menurunkan total jarak perpindahan material dari 360 m/hari menjadi 198,96 m/hari berdasarkan metode Manhattan (efisiensi 44,73%) serta dari 270 m/hari menjadi 148,25 m/hari berdasarkan metode Euclidean (efisiensi 45,09%). Penurunan jarak ini berdampak pada peningkatan efisiensi operasional, pengurangan waktu material handling, serta perbaikan kelancaran alur distribusi internal perusahaan secara berkelanjutan. Hasil penelitian menunjukkan bahwa metode Blocplan efektif digunakan dalam perancangan tata letak gudang karena mampu mengoptimalkan kedekatan antar area berdasarkan intensitas hubungan aktivitas operasional perusahaan. Tata letak usulan dapat dijadikan rekomendasi implementatif strategis untuk meningkatkan produktivitas dan daya saing perusahaan.
Co-Authors Muhamad Fatchan Nasihardani, Dana Setiawan Setiawan Syamil, Rafi Akbar Ubaeddillah, Saeful Windyatri, Hasyrani