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All Journal Journal of Aquaculture Management and Technology Jurnal Al Bayan: Jurnal Jurusan Pendidikan Bahasa Arab Jurnal Optimasi Sistem Industri REKAYASA Jurnal Terapan Abdimas JFMR (Journal of Fisheries and Marine Research) Arabiyatuna : Jurnal Bahasa Arab Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Jurnal Ilmiah Soulmath : Jurnal Edukasi Pendidikan Matematika Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika Martabe : Jurnal Pengabdian Kepada Masyarakat IJoASER (International Journal on Advanced Science, Education, and Religion) Jurnal Optimalisasi Community Development Journal: Jurnal Pengabdian Masyarakat TIN: TERAPAN INFORMATIKA NUSANTARA G-Couns: Jurnal Bimbingan dan Konseling JiTEKH (Jurnal Ilmiah Teknologi Harapan) Indonesian Journal of Industrial Engineering & Management Jurnal Pengabdian Masyarakat (ABDIRA) Educivilia: Jurnal Pengabdian Pada Masyarakat IMTechno: Journal of Industrial Management and Technology Jurnal Bina Desa Jurnal Al-Qiyam Al Muhafidz Journal of Health Sciences and Medical Development Journal of Artificial Intelligence and Digital Business TRIMAS: Jurnal Inovasi dan Pengabdian Kepada Masyarakat Sabangka Abdimas Jurnal Pengabdian Masyarakat Sabangka International Journal of Islamic Education (IJIE) Qomaruna Al Maghazi : Arabic Language in Higher Education An-nahdloh : Journal of Arabic Teaching SISTEMIK : Jurnal Ilmiah Nasional Bidang Ilmu Teknik Educommunity Jurnal Pengabdian Masyarakat As-Sulthan Journal of Education Jurnal Akuntansi Syariah (JAkSya)
Nailul Izzah
Program Studi Budidaya Perairan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Veterinary Other

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Journal : Jurnal Optimalisasi

 1 
Analisis Pengendalian Kualitas Produk Songkok Menggunakan Metode Statistical Proses Control dan 5W+2H pada UD. Tiga Kunci Rufaidah, Anik; Izzah, Nailul; Suparno, Suparno; Rosyidi, Moh Ririn
Jurnal Optimalisasi Vol 10, No 2 (2024): Oktober
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v10i2.9856

Abstract

In the period of the quality manufacturing sector, it is critical to pay attention to raw materials and product compatibility for consumers in order to preserve the quality supplied to them. Quality control is an important step in ensuring that the products produced fulfill defined specifications. Statistical Process Control (SPC) is a technique for monitoring and controlling the manufacturing process using statistical approaches. UD Tiga Kunci Songkok is a top manufacturer of high-quality songkok in Bungah Village, Gresik Regency, Indonesia. Established in 1985, our company has been dedicated to preserving the archipelago's traditions and culture by producing exquisite and comfortable songkok. Even yet, there are still flaws that arise at UD Songkok Tiga Kunci. Defects continue to develop throughout the last five months, from January to May 2024. There are 132 songkoks with faults. If this situation is not addressed, UD will suffer financial losses. Three Key Chompong aims to improve product quality and competitiveness by expanding the use of SPC in songkok production. Additionally, this 5W2H will address product defects. The research revealed that there are three sorts of faults that develop in UD  Tiga Kunci: 45.5% of disorderly amounts, 40.2% of sloppy stitching, and 14.4% of velvet fabric, with the highest number of flaws. The control chart shows values of ucl=0.093, lcl=0, and cl/p ̅=0.043, indicating no deviation from the control line (despite the presence of flaws in the defect proportion). The factors that cause the most flaws in Songkok (untidy sum) are man, material, machine, and process. Knowing this, the corrective actions made at UD. Tiga Kunci keys monitor and evaluate each songkok manufacturing process to obtain mitigation procedures for songkok products.
Optimasi Pengendalian Bahan Baku Phospat Menggunakan Metode Economic Order Quantity (EOQ) dan Periodic Order Quantity (POQ) di PT XYZ Suparno, Suparno; Izzah, Nailul; Rufaidah, Anik; Narto, Narto
Jurnal Optimalisasi Vol 12, No 1 (2026): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v12i1.14798

Abstract

This study addresses the importance of raw material inventory control in maintaining production continuity and minimizing operational costs in manufacturing companies. Ineffective inventory policies may lead to overstock or stockout conditions, both of which negatively impact efficiency and cost performance. Therefore, this research aims to determine the most optimal inventory control method for phosphate raw materials at PT. XYZ by comparing the Economic Order Quantity (EOQ) and Periodic Order Quantity (POQ) methods. A quantitative approach was employed using demand forecasting data, ordering cost, holding cost, and lead time. The annual demand for phosphate raw materials was estimated at 3,875,850 kg. The results show that the company’s current policy generates a total inventory cost of Rp26,629,000 per year. The EOQ method produces an optimal order quantity of 3,742.56 kg per order with a total inventory cost of Rp42,750,797 per year. Meanwhile, the POQ method results in an optimal ordering interval of every four months, with an order quantity of 1,291,950 kg and a significantly lower total inventory cost of Rp9,385,000 per year. Both methods yield the same reorder point (ROP) of 42,476 kg. Based on the analysis, the POQ method is the most efficient inventory control approach due to its ability to minimize total inventory costs and better accommodate fluctuating demand patterns. However, its implementation should consider warehouse capacity and operational constraints.
Co-Authors Aditya, Bagus Galih ahmad arifin Ainiyah, Maslakhatul Ainul Yaqin Alisa, Alisa Amalia, Dian Risky Amaliyah Mushthoza, Dina Anggraini, Wulan Ariliana Ariyanda, Ariyanda Arning Wilujeng Ekawati Arsad, Sulastri Ayu Saputri, Dinda Azizah, Riski Nur bin Abdul Wahab, Muhammad Nubli Chamid, Noer Deddy Junaedi Erwanto, Nanang Fidani, Riki Firdaus, Rayyan Hafidz Yusuf, Muhammad Halim, Nur Hanim, Muhammad Ismail Hendi, Ade Hidayah, Afifah Nor Hidayati, Irva Nur Huwaida, Nisrina Iksan Iksan Jaenullah, Jaenullah Khalim, Muhammad Nur Kusumawardani, Rahma Indah Lailatul Munawaroh, Lailatul Luthfi Afani, Indah Luthfiyah, Nurul Marissa, Erni Mohamad Riyadi Mubarokah, Siti Muhamad Agus Mushodiq, Muhamad Agus Muhammad Rivai Muhammad Syaifullah, Muhammad Munawar, Endang Narto Narto, Narto Nia Indah Purnamasari, Nia Indah Nisa, Kurniaan Lailatun Novianti, Nuraini Ike Nur, Kholida Paramita, Nurhapsari Pradnya Permatasari, Irsa Ardhita Pradani, Rizki Febri Eka Pramita, Riska Dwi Pratiwi, Bety Dwi Putri, Wakhidati Nurrohmah Putri, Wakhidatul Nurrohmah Rahman, Ryan Arif Rasdi Rasdi, Rasdi Rifqi Khairul Anam Rohmah, Nafi'atu Roidah, Salma Roji, Fatkhur Rosyidi, Maulana Rozi, Muhammad Fahrur Rozikin, Ahmad Khoirur Rufaidah, Anik Rusmawati Rusmawati, Rusmawati Siti Nur Azizah, Siti Nur Sofiyanurriyanti Suminto Suminto Suparno Suparno Sutarto, Auditya Purwandini Suwinda, Suwinda Syuhadak, Syuhadak Ubay Harun Ulfatun Hasanah Umi Habibah Ummi Kulsum Vivi Endar Herawati Widyaningrum, Erika Diah Ari Yusuf, Moh Hafidz Yusuf, Muhammad Hafidz Zaenal Arifin Zain, Zidan Almas