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All Journal SPEKTRUM INDUSTRI SITEKIN: Jurnal Sains, Teknologi dan Industri Heuristic R.E.M (Rekyasa Energi Manufaktur) Jurnal PERFORMA : Media Ilmiah Teknik Industri Tibuana : Journal of Applied Industrial Engineering Matrik : Jurnal Manajemen dan Teknik Industri Produksi Management Studies and Entrepreneurship Journal (MSEJ) Jurnal ABDINUS : Jurnal Pengabdian Nusantara Jurnal Abdimas Berdaya : Jurnal Pembelajaran, Pemberdayaan dan Pengabdian Masyarakat Journal of Entrepreneurship & Business Abditeknika - Jurnal Pengabdian Kepada Masyarakat JURNAL TEKNIK INDUSTRI The Center For Sustainable Development Studies Journal Industrial & System Engineering Journals (ISEJOU)
Dewantoro, Albertus Daru
Prodi Teknik Industri Fakultas Teknik Universitas Katolik Darma Cendika
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Penerapan Metode Dmaic Untuk Pengendalian Stok Opname Di PT. Rapi Trans Logistik Indonesia Jason Jeremy Candra; Albertus Daru Dewantoro
Industrial & System Engineering Journals (ISEJOU) Vol. 3 No. 2 (2025): ISEJOU, Vol 3, No 2 Juni 2025
Publisher : Universitas Katolik Darma Cendika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37477/isejou.v3i2.784

Abstract

Ketidaksesuaian data spare part antara stok sistem dan stok fisik di PT Rapi Trans Logistik Indonesia menjadi permasalahan yang dapat mengganggu efisiensi operasional gudang. Penelitian ini bertujuan untuk mengidentifikasi faktor penyebab utama masalah tersebut dan memberikan usulan perbaikan yang dapat diterapkan secara efektif. Berdasarkan analisis yang dilakukan, ditemukan bahwa faktor manusia, seperti pengambilan spare part tanpa mencatat permintaan dan pengembalian barang yang tidak dilakukan, merupakan penyebab utama. Selain itu, kurangnya sistem pemantauan penggunaan spare part secara real-time dan tata letak penyimpanan yang tidak terorganisasi turut berkontribusi pada ketidaksesuaian data stok. Usulan perbaikan yang diajukan meliputi penerapan sistem manajemen gudang berbasis digital untuk mencatat pergerakan spare part secara real-time, penegakan kepatuhan terhadap SOP yang telah ditetapkan, pelaksanaan audit stok secara berkala, dan penataan ulang penyimpanan spare part agar lebih terstruktur. Tahap pengendalian dilakukan dengan pengawasan terhadap implementasi perbaikan, pelaporan aktivitas gudang secara berkala, serta penggunaan sistem peringatan dini untuk mendeteksi anomali stok Dengan menerapkan langkah-langkah tersebut, diharapkan ketidaksesuaian data spare part dapat diminimalkan, sehingga akurasi manajemen stok dan efisiensi operasional gudang dapat meningkat.
Optimizing Packing Material Inventory with ABC Analysis, Forecasting Methods, and Economic Order Quantity: Optimalisasi Persediaan Material Packing dengan Analisis ABC, Metode Peramalan, dan Economic Order Quantity Marchello Pamolango; Albertus Daru Dewantoro; Lusi Mei Cahya
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 11 No 1 (2026): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v11i1.1810

Abstract

The management of packing material inventory in flexible packaging often faces high investment value, inaccurate demand planning, and inefficient ordering, creating a research gap in selecting an integrated optimization method. This study aims to determine material requirements and optimal order quantities to minimize total inventory cost. The methodology integrates ABC Analysis for material classification, forecasting techniques to predict demand, and Economic Order Quantity (EOQ) to determine the most economical order size. The results show that Plywood is classified as category A due to its dominant investment value. Forecasting evaluation using MAPE and Tracking Signal indicates that the 3-period Weighted Moving Average provides the highest accuracy with the lowest error. The EOQ calculation produces an optimal order quantity of 3,304 units for Plywood Multi 0280x0280x09 dia 77, significantly reducing inventory cost. The integration of ABC, forecasting, and EOQ improves inventory efficiency and supports more reliable production planning
Ruang Komunal Berbasis Kearifan Lokal WargaGereja Katolik St. YusufStasi Kampungangyar Blitar Widriyakara Setiadi; Lucia Ina Trisyanti; Albertus Daru Dewantoro; Stefanus Prabani Setio Hastorahmanto; Heristama Anugerah Putra; Yohanes Kristianus Harianto; Valerio Sultan Agni Setyawan
The Center for Sustainable Development Studies Journal (Jurnal CSDS) Vol. 5 No. 1 (2026): Jurnal CSDS Vol 5, No 1 (2026) ISSN 2964-1683 (media online)
Publisher : Darma Cendika Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37477/csds.v5i1.955

Abstract

Latar belakang kegiatan masyarakat Prodi Arsitektur Universitas Katolik Darma Cendika (UKDC) di Gereja Katolik St. Yusuf stasi Kampunganyar Blitar ini didasarkan atas kebutuhan akan ruang komunal. Ruang komunal dibutuhkan oleh Wargastasi Kampunganyar untuk melakukan berbagai kegiatan rohani maupun sosial. Kondisi saat ini, ruang komunal sudah tidak mampu menampung Warga, kolom maupun atap sudah keropos dan bocor. Oleh karena itu, Wargasetempat bergotong royong membangun ruang komunal yang lebih luas, mengganti material kolom dan atap dari bahan yang lebih kuat serta awet. Mengingat Kampunganyar berada di daerah yang rawan semburan abu vulkanik gunung Kelud. Kearifan lokal mengajarkan kepada warga setempat beradaptasi dengan lingkungan alam sekitarnya. Kemiringan atap yang curam membuat timbunan abu vulkanik langsung jatuh ke bawah, sehingga atap tidak mudah rusak dan menimpa penghuninya. Kendala dana membuat atap ruang komunal belum bisa direalisasikan. Ada pun, tujuan kegiatan pengabdian masyarakat ini membantu Wargamenyelesaikan atap ruang komunal. Metoda pelaksanaan meliputi: 1) Diskusi dengan Romo Kepala Paroki dan WargaGereja Katolik St. Yusup stasi Kampunganyar, 2) Survei lapangan ke Dusun Kampunganyar, Kecamatan Nglegok, Kabupaten Blitar, 3) Tahap pelaksanaan melibatkan Wargasetempat, LPPM, Prodi Arsitektur, PT Kencana Maju Bersama, dan paroki Gereja Katolik St. Yusuf Blitar. Harapan dari kegiatan pengabdian masyarakat ini, ruang komunal Gereja Katolik St. Yusuf stasi Kampunganyar menjadi ruang yangnyaman dan aman ketika melaksanakan kegiatan-kegiatan rohani maupun sosial.
Perumusan Strategi Rekomendasi UKM Pada Masa Pandemi Covid-19 (Studi kasus : UD Darmaji) Albertus Daru Dewantoro; Aschensio Saogo
Performa: Media Ilmiah Teknik Industri Vol 20, No 1 (2021): Performa: Media Ilmiah Teknik Industri
Publisher : Industrial Engineering, Faculty of Engineering, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/performa.20.1.43617

Abstract

AbstractUD Darmaji is one of the SMEs that accepts orders for making sandals and shoes. In the last few years, UD Darmaji has experienced a decline in production, there are several causes for the decline in production from UD Darmaji, including the lack of demand and inaccurate formulation of marketing strategies in marketing strategies. There are several methods and analyzes used, namely SWOT analysis (Strength, Weaknesses, Opportunities, Threats), IFE matrix (Internal Factor Evaluation Matrix) and EFE (External Factor Evaluation Matrix) and AHP (Analytical hierarchy process) which is used for weighting and QSPM ( Quantitative Strategic Planning Matrix) to determine what strategies to choose. The results of the analysis show that the strategy of selling online using both social media and online buying and selling sites has the highest TAS (Total Attractive Score) value of 5,614, the strategy to improve the quality of the packaging is better and more attractive, with a TAS value of 5,336, and a strategy to make the workplace more comfortable by rearranging the factory so that it looks tidier and cleaner and implementing the 5R TAS value of 5.242, which will be used as a suggestion for UD Darmaji.
Optimization Of Packing Material Inventalory Using ABC Analysis, Forecasting Methods, and Economic Order Quantity Pamolango, Marchello; Dewantoro, Albertus Daru
Tibuana Vol 9 No 02 (2026): Tibuana
Publisher : UNIPA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/tibuana.9.02.11344

Abstract

Inventory management of packing materials in the flexible packaging industry often faces high investment value, inaccurate demand planning, and inefficient ordering quantities. This study aims to determine material priorities and optimal order quantities to minimize total inventory costs through an integrated approach. The methodology combines ABC Analysis for material classification, forecasting methods (Simple Average, Moving Average, Weighted Moving Average, and Single Exponential Smoothing) to predict demand, and Economic Order Quantity (EOQ) to determine optimal purchasing quantities. The results show that PLY material is categorized as class A with an investment contribution of 64.53%. Among forecasting methods, the 3-period Weighted Moving Average provides the best accuracy with the lowest MAPE value of 15.81%. EOQ calculations indicate optimal order quantities of 15,849 units for Plywood Multi 0280x0280x09 dia 77 and corresponding optimal quantities for other PLY materials. The integration of ABC, forecasting, and EOQ improves inventory efficiency and supports more reliable production planning.
Co-Authors Alberth, Alberth Antonius Yan Sheva Christiano Aschensio Saogo Christiananta, Budiman Christiano, Antonius Yan Sheva Citra Rahayu Kumaladewi David Andrian Desrina Yusi Irawati Diio Rivaldo Ferdinan, Bernardus Aris Halim, Zakaria Harianto, Yohanes Kristianus Hastorahmanto, Stefanus Prabani Setio Heristama Anugerah Putra Heristama Anugerah Putra Ivan, Yohanes D. C. J., Fininonsi Jason Jeremy Candra Kumaladewi, Citra Rahayu L., Fransisca Lena Ellitan Lilis Nurhayati lilis nurhayati Lucia Ina Trisjanti Lucia Ina Trisyanti Lusi Mei Cahya Marchello Pamolango Marco Hadi Surya Mone, Kristoforus Nehemia Dwi April Riyanto Nikolaus, Nathan Pamolango, Marchello Prahesti Jihan Permatasari Riyanto, Nehemia Dwi April Robertus Adi Nugroho Setiadi, Widriyakara Setyawan, Valerio Sultan Agni Sri Widari, Nyoman Stefanus Prabani Setio Hastorahmanto Stefanus Prabani Setio Hastorahmanto Surya, Marco Hadi Trisjanti, Lucia Ina Trisyanti, Lucia Ina Valerio Sultan Agni Setyawan Valerio Sultan Agni Setyawan Widriyakara Setiadi Widriyakara Setiadi Yohanes Kristianus Harianto Yohanes Kristianus Harianto Zakaria Halim