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All Journal Jurnal Rekayasa Sistem Industri JURNAL PASTI (PENELITIAN DAN APLIKASI SISTEM DAN TEKNIK INDUSTRI) Journal Industrial Servicess Jurnal Ilmiah Universitas Batanghari Jambi JITTER (Jurnal Ilmiah Teknologi Informasi Terapan) PROCEEDING STIMA International Journal of Supply Chain Management MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Journal of Industrial Engineering and Operation Management (JIEOM) eProceedings of Engineering Spektrum Industri Journal of Production, Enterprise, and Industrial Applications
Nova Indah Saragih
Telkom University
Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Transportation

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Tabu Search Algorithm for Solving a Location-Routing-Inventory Problem Saragih, Nova Indah; Turnip, Peri
Spektrum Industri Vol. 22 No. 2 (2024): Spektrum Industri - October 2024
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v22i2.234

Abstract

Location decisions, inventory control, and vehicle routing are interrelated decisions. Inventory control decisions, such as order lot size and order frequency, affect both inventory and transportation costs. Failure to take inventory and transportation costs into consideration when determining location decisions can lead to suboptimality since they have a large impact on inventory and transportation costs. Therefore, how to decide locations, determine vehicle routing, and control inventory optimally, or location-routing-inventory problem (LRIP), becomes an important issue to design logistics systems. The objective of this paper is to develop a heuristic method base on Tabu Search (TS) to solve a LRIP. The contribution of this paper which is the heuristic method based on TS to solve a LRIP has never been developed before. TS is a type of metaheuristic. The success of TS is due to its ability to direct the search process so as not to get trapped in the local optimum, in large part, like many other metaheuristics. TS has been widely used to solve complex combinatorial optimization problems. The result of the computational comparison show that the heuristic method can provide a relatively small average gap of 3.20% compared to the optimal method. Application of the proposed heuristic is done in DKI Jakarta.
Usulan Kebijakan Persediaan Produk Tepung Mocaf dengan Menggunakan Metode Continuous Review (s,S) dan Periodic Review (R,s,S) untuk Meminimasi Overstock pada Gudang Produk Jadi di PT RMI Irawanto, Sondang Eko; Saragih, Nova Indah; Santosa, Budi
Journal of Production, Enterprise, and Industrial Applications Vol. 1 No. 1 (2023): October 2023
Publisher : Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jpeia.v1i1.6514

Abstract

PT RMI merupakan perusahaan yang terletak di Kabupaten Banjarnegara, Jawa Tengah, yang bergerak dalam industri pangan yang memproduksi tepung mocaf. PT RMI memiliki permasalahan utama pada bagian pengendalian persediaan, dimana jumlah persediaan dari produk tepung mocaf selalu lebih tinggi dibandingkan jumlah demand yang ada, sehingga membuat persediaan produk tepung mocaf di gudang produk jadi menjadi overstock dan beberapa produk tepung mocaf terpaksa harus ditempatkan di luar area gudang produk jadi. Terdapat beberapa akar permasalahan yang menyebabkan adanya overstock pada produk tepung mocaf, salah satunya adalah kebijakan persediaan yang kurang optimal. Pada penelitian ini, metode yang digunakan untuk merancang kebijakan persediaan produk tepung mocaf adalah continuous review (s,S) dan periodic review (R,s,S). Dengan menggunakan metode continuous review (s,S) dan periodic review (R,s,S), dapat menghasilkan jumlah ekspektasi overstock produk tepung mocaf masing-masing 94,93% dan 94,27% lebih kecil dibandingkan dengan kondisi eksisting. Selain itu, dengan menggunakan metode continuous review (s,S) dan periodic review (R,s,S), dapat menghasilkan total biaya persediaan masing-masing 15,66% dan 13,93% lebih kecil dibandingkan dengan kondisi eksisting.
Co-Authors Anita Juraida Anita Juraida Anita Juraida, Anita Asyifa Freda Salsa Billa Athiyyah Ayuningputri Aulia, Riefda Faizatul Ayu Endah Wahyuni Budi Santosa Budi Santosa Erlangga Bayu Setyawan Fadhlullah Asmandha, Rafi Hardian Kokoh Pambudi Hardyanto, Muhammad Rafif Iphov Kumala Sriwana Iqbal Yulizar Mukti Irawanto, Sondang Eko Mahmud, Rahmiyanti Marpaung , Ignatius Horas Muchammad Fauzi Muhammad Nashir Ardiansyah Muttaqin, Prafajar Seksessanno Naufal Hesantra Harijadi Nia Novitasari Obsatar Sinaga Oktri Mohammad Firdaus Olga, Fidiana Tri Omar Alaeddin Paripurna, Tirta Candra Peri Turnip Permatasari, Sekar Safitri Prafajar Suksessanno Muttaqin Putra, Irfan Wisnu Nadhif Putu Giri Artha Kusuma Rima Rachmawati Turnip, Peri Turnip, Peri Verani Hartati