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Jurnal Sistem Teknik Industri
Published by Universitas Sumatera Utara
ISSN : 14115247     EISSN : 25279408     DOI : -
Core Subject : Science, Engineering,
Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering
Jurnal Sistem Teknik Industri (JSTI) of Universitas Sumatera Utara, Faculty of Engineering, Department of Industrial Engineering, was published in 1998. Until now, the number of publications has reached 21 volumes, each of which is published by TALENTA Publisher twice a year . Each volume has two publishing numbers, namely January issue numbers and July issue numbers.
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Articles 216 Documents
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Decreasing Total Inventory Cost by Controlling Inventory in Motorcycle Dealer David; Engmir; Budiman, Irwan; Tampubolon, Jusra
Jurnal Sistem Teknik Industri Vol. 22 No. 2 (2020): JSTI Volume 22 Number 2 July 2020
Publisher : TALENTA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsti.v22i2.3930

Abstract

This research was conducted at one of the motorcycle dealers in Indonesia. Besides selling motorcycles, this dealer also provides services to repair motorcycles and sells genuine motorcycle parts. Inventory management which the company carried out is still not good enough because there are still demand for spare parts from consumers that cannot be fulfilled by the company. The purpose of this study is to draw up a plan to control spare parts by paying attention to the spare parts that need to be considered, estimating the exact number of spare parts demand, knowing the smallest total inventory cost, knowing the amount of safety stock needed, and knowing when to reorder. In preparing the spare parts control, the methods used are ABC analysis, demand forecasting method, and EOQ method. The results of this study are plans to control the inventory of Tire, Rr. such as the forecasting sales of Tire, Rr. as many as 17338, economic order quantity of Tire Rr are 2158 units, the number of safety stocks of Tire, Rr. needed in 2020 are 1738 units, and the reorder point in 2020 is 8 times with the total inventory cost for Tire, Rr. in 2020 is Rp. 30,009,005.
Identifikasi Limbah pada Proses Produksi Obat Nyamuk Bakar dengan Menggunakan Material Balance Sitepu, Muhamad Haikal; Andayani, Ulfa; Alda, Tania
Jurnal Sistem Teknik Industri Vol. 22 No. 2 (2020): JSTI Volume 22 Number 2 July 2020
Publisher : TALENTA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsti.v22i2.3935

Abstract

Based on the initial discussion with people form Mosquito coil factory, there is a requirement to calculate the amount of waste from the factory. According to them, several wastes (in the form of liquid and solid waste) are produced in the process of making mosquito coils. The wastes are often scattered on the floor, causing the condition of the factory space to be unclean or dirty and can cause employees to get sick due to waste scattered on the floor. This research focuses on identifying the waste and to calculate the waste produced by each machine for the production of mosquito coils by using the Material Balance method. Material balance shows a quantitative analysis of material inputs, outputs and wastes / waste at each stage of the production process. Material balance calculation is done in the process of Sifting Coconut Shell Flour, Sifting Process for Coffee Skin Flour, Process for Sifting Wood Flour, Sifting Flour Sifting Process, Onggok Flour Cooking Process, Mixing Material into Mosquito Coe Dough, Mosquito Dough Sifting Process, Forming Process of Paste Paste Plate , The Process of Printing Paste Slabs Into Wet Double Coil, Drying Double Wet Coil Process, Drying and Separation Process of Baking Sheet with Dry Double Coil, Grinding Process of Broken Dry Double Coil, Process of Sifting Sweep Flour Falling on the Floor. Based on the observation, some of the waste obtained from each stage of the production process can be collected again and can be used again as a raw material for making mosquito coils.
Analisis Peluang dan Perumusan Strategi Pengembangan Objek Wisata Alam dengan Metode SWOT Analysis di Kab. Asahan (Studi Kasus: Air Terjun di Asahan) Manalu, Santi Agustina; Sinaga, Ulimayen
Jurnal Sistem Teknik Industri Vol. 22 No. 2 (2020): JSTI Volume 22 Number 2 July 2020
Publisher : TALENTA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsti.v22i2.3942

Abstract

Pariwisata adalah salah satu bidang yang berperan besar dalam pendapatan daerah. Perkembangan pariwisata dapat menambah pendapatan daerah secara signifikan. Penelitian ini menguraikan bagaimana mengembangkan objek wisata alam yang ada di Kabupaten Asahan dengan tujuan untuk meningkatkan jumlah wisatawan. Studi kasus dalam penelitian ini adalah seluruh air terjun yang ada di Kabupaten Asahan. Sesuai data dari Dinas Pariwisata Kabupaten Asahan, air terjun yang ada di Kabupaten Asahan terdapat sebanyak empat air terjun. SWOT analysis akan digunakan untuk mengidentifikasi Strength, Weakness, Opportunity dan Threat pada objek penelitian. Berdasarkan hasil pada SWOT dengan menggunakan matriks Grand Strategy posisi Air Terjun Ponot ada di strategi SO, Air terjun Alam Tani ada pada strategi WO, Air terjun Simonang-monang ada pada strategi WO dan air Terjun Jatuhan Balok ada pada strategi WT. Berdasarkan hasil Matriks tersebut, peneliti merancang strategi untuk dilakukan pemilihan tingkat kepentingan dari setiap strategi dengan menggunakan Analitycal Hierarchy Process (AHP) yakni dengan menggunakan software Expert Choice versi 11
Analisis Kebutuhan Sumber Daya Manusia di Instalasi Gawat Darurat (IGD) untuk Mempercepat Waktu Respon dengan Metode Discrete Event Simulation (Studi Kasus: IGD RSU HKBP Balige) manik, yosef; Simorangkir , Desi
Jurnal Sistem Teknik Industri Vol. 22 No. 2 (2020): JSTI Volume 22 Number 2 July 2020
Publisher : TALENTA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsti.v22i2.3943

Abstract

Salah satu ukuran performansi untuk menilai kecepatan pelayanan di IGD adalah waktu respon. Waktu respon adalah waktu antara pasien tiba di IGD hingga pasien ditangani oleh dokter IGD. Standar waktu respon berdasarkan Keputusan Menteri Kesehatan Republik Indonesia Nomor 856 Tahun 2009 adalah maksimum 5 (lima) menit. Penelitian ini bertujuan untuk menentukan jumlah kebutuhan sumber daya manusia (dokter dan perawat) di IGD RSU HKBP Balige sehingga waktu respon terhadap pasien menjadi lebih cepat dan sesuai standar. Metode yang digunakan pada penelitian ini adalah Discrete Event Simulation. Tujuan penelitian dicapai dengan membuat sebuah model simulasi IGD RSU HKBP Balige menggunakan perangkat lunak simulasi Arena dan melakukan eksperimen terhadap model simulasi tersebut. Hasil penelitian ini menunjukkan bahwa waktu respon rata-rata di IGD RSU HKBP Balige dapat diturunkan dari 8,61 menit menjadi 4,14 menit, serta waktu respon maksimum dari 26,30 menit menjadi 14,09 menit dengan penambahan sumber daya manusia sebanyak 2 dokter dan 3 perawat per shift.Kata kunci : pemotong, produktivitas, singkong, Metode Rasional.
Manajemen Risiko Rantai Pasok Ikan Bandeng Kelompok Tani Tambak Bungkak dengan Integrasi Metode Analytic Network Process (ANP) dan Failure Mode and Effect Analysis (FMEA) Akhmad Wasiur Rizqi; Moh Jufriyanto
Jurnal Sistem Teknik Industri Vol. 22 No. 2 (2020): JSTI Volume 22 Number 2 July 2020
Publisher : TALENTA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsti.v22i2.3949

Abstract

Ikan bandeng merupakan ikan yang memiliki kaya akan kandungan gizi. Ikan bandeng memiliki kandungan protein yang tinggi dan rendah lemak. Salah satu kelompok yang melakukan budidaya ikan bandeng yaitu kelompok tani tambak bungkak. Kelompok tani ini bergerak penyaluran distribusi pasokan ikan bandeng ke pedagang pengumpul dan industri pengolahan ikan. Permasalahan yang terjadi pada kelompok tani tersebut yaitu pengelolaan masih tradisional, produktivitas rendah serta risiko rantai pasok seperti harga, lingkungan yang berpengaruh pada proses keberlanjutan bisnisnya. Penelitian ini bertujuan untuk mengidentifikasi risiko-risiko dan melakukan pengendalian risiko pada rantai pasok ikan bandeng. Metode yang digunakan adalah ANP (Analytical Network Process) dan FMEA (Failure Mode and Effect Analysis). Kedua metode tersebut dilakukan integrasi sehingga diperoleh nilai WRPN (weighted risk priority number) untuk prioritas risiko untuk dilakukan perbaikan. Hasil penelitian diperoleh bahwa prioritas tertinggi yaitu risiko produksi dengan nilai WRPN sebesar 186,26. Pengendalian risiko yang dilakukan yaitu edukasi luas lahan budidaya ikan bandeng dan pemberian pinjaman untuk memperluas lahan, pembuatan waduk untuk penampungan air untuk mempermudah pengairan, dan pemberian nutrisi tambahan untuk ikan dan mengatur kondisi air
PERANCANGAN RENCANA PENGADAAN BAHAN BAKU PADA PERUSAHAAN JASA KONTRUKSI wijaya, chandra; Santonius, celvin; Tampubolon, Jusra; Budiman, Irwan
Jurnal Sistem Teknik Industri Vol. 22 No. 2 (2020): JSTI Volume 22 Number 2 July 2020
Publisher : TALENTA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsti.v22i2.3975

Abstract

Abstract. Persediaan bahan baku merupakan bahan terpenting dalam produksi yang dilakukan oleh perusahaan. Pengendalian persediaan terhadap kuantitas bahan baku yang dilakukan gudang juga merujuk kepada proses produksi. Bahan baku dapat diperoleh dari supplier atau perusahaan yang menghasilkan bahan baku.Tujuan penelitian ini adalah untuk mengetahui total biaya persediaan semen dan mengetahui batas minimal dan maksimal untuk pemesanan semen yang harus dilakukan oleh perusahaan Cv.XYZ. Metode analisis data yang digunakan adalah Metode Period Order Quantity POQdansizing Lot For Lot didapatkan dengan Metode sizing Lot For Lot adalah metode yang memiliki biaya yang paling rendah yaitu sebesar Rp 712,136 bila dibandingkan dengan metode Period Order Quantity (POQ) dengan biaya sebesar Rp 909,904 dan batas minimal dan maksimal pembelian semen adalah 90 sak. Abstrak. Inventory of raw materials is the most important material in production carried out by the company. Inventory control of the quantity of raw materials carried out by the warehouse also refers to the production process. Raw materials can be obtained from suppliers or companies that produce raw materials. The purpose of this study was to determine the total cost of cement supply and determine the minimum and maximum limits for ordering cement that must be carried out by a Cv Company. XYZ. The data analysis method used is the Period Order Quantity (POQ) Method and the Map Control Method is obtained by the Sizing Lot For Lot method which has the lowest cost of IDR 712,136 when compared to the Period Order Quantity (POQ) method with a fee of IDR 909,904 and the minimum and maximum limit for buying cement is 90 cigarettes.
Preventive Maintenance Scheduling on Belt Conveyor Using Failure Mode Effect and Criticality Analysis Kristian, Fernado Putra; Mulyono, Julius; Santosa, Hadi
Jurnal Sistem Teknik Industri Vol. 23 No. 1 (2021): JSTI Volume 23 Number 1 January 2021
Publisher : TALENTA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsti.v23i1.4368

Abstract

PT. X is a services and manufacturing company. PT. Y is one of some of industrial companies use the services of PT. X, is one of the biggest chemical fertilizer producer in Southeast Asia. PT Y uses 66 belt-conveyors for distributing the material. In order to arrange maintenance schedule, used preventive maintenance calculations using Failure Mode Effect and Critically Analysis method (FMECA). Preventive maintenance is used to schedule the maintenance of the conveyor belt’s components (belt and primary cleaner). Data analysis obtained a critical belt values are 2.521𝑥10−3 and 1.863𝑥10−3, respectively, on the primary cleaner component. Furthermore, effective maintenance and evaluation time intervals which obtained for belt components is indicating operation time with 92% reliability level or about 215 hours.
Analisis Kepuasan Pelanggan terhadap Kualitas Pelayanan Jasa Ekspedisi dengan Metode Servqual dan Data Envelopment Analysis (DEA) di Kota Meulaboh Saputra, Arie; Sofiyanurriyanti, Sofiyanurriyanti
Jurnal Sistem Teknik Industri Vol. 23 No. 1 (2021): JSTI Volume 23 Number 1 January 2021
Publisher : TALENTA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsti.v23i1.4773

Abstract

Assessment of service performance is important for the sustainability and existence of the company in the market. Objective performance measurement can be done to see the internal strength of the company and can also show how the company competes with companies that cover the same area. J&T Express Meulaboh, which is a shipping service company in Meulaboh City, has never measured customer satisfaction, the management considers the services provided to be quite good, seen from visitors who use their services. An assessment of the company's performance has not been carried out so that it is not maintained whether it has used its resources efficiently and optimally. Measurement of company service performance is carried out using the Service Quality (Servqual) method to measure the level of customer satisfaction and the Data Envelopment Analysis (DEA) method to measure the company's efficiency value. The result of the 5 servqual gap calculation shows that all service quality attributes owned by J&T Express Meulaboh are negative, which indicates that J&T Express service performance has not met the expectations of customers who use its services. The results of calculations using the DEA method show that J&T Express Meulaboh is quite good and efficient with an efficient value of 1.
Optimalisasi Penugasan Kerja dan Distribusi Roti dengan Metode Assignment dan Spanning Tree Ramadan, Riki; Wahyudin; Satya, Egar Naufal Ari
Jurnal Sistem Teknik Industri Vol. 23 No. 1 (2021): JSTI Volume 23 Number 1 January 2021
Publisher : TALENTA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsti.v23i1.4869

Abstract

A company is required to perform activities effectively and efficiently, employee assignment problems must be done optimally, the high element of subjectivity will cause miscommunication between employees to distribute an item. This research was conducted on UMKM bakers who have not optimized the problem of employee assignment and distribution process. With this research is expected to increase corporate competition. Then the researchers used the Penalty method to allocate employees to obtain optimal results and networking methods to solve distribution problems. Data obtained from the observation results will be tested according to the method used. After the results are obtained manually the results are then compared with lingo and POM-QM software programs. The results of the research assignment were Andik distributing bread to Karang Indah, Budiman distributing bread to Jatirasa, Saepul distributing bread to Karang Pawitan, Indra distributing bread to Nagasari, Maman distributing bread to Kepuh, Aep distributing bread to Johar, and Jamhari distributing bread to Cinangoh. Total sales of 1039 pieces of bread. The distribution network results from the research are Companies – Nagasari, Companies – Jatirasa, Jatirasa – Karang Indah, Nagasari – Johar, Karang Indah – Karang Pawitan, Karang Pawitan – Kepuh, Johar – Cinangoh. The total distance traveled is 7550 m.
Pengukuran Beban Kerja Mental Bagian Marketing PT. Pindo Deli di Masa Covid-19 dengan Metode NASA TLX Rahdiana, Nana; Hakim, Afif; Sukarman
Jurnal Sistem Teknik Industri Vol. 23 No. 1 (2021): JSTI Volume 23 Number 1 January 2021
Publisher : TALENTA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsti.v23i1.4873

Abstract

PT. Pindo Deli is a national company that produces paper, which is located in Kutamekar Village BTB6/9, Karawang Regency, West Java. It produces various types of paper with a market share of 60% for exports and 40% for domestic. The condition of the Covid-19 pandemic also has an impact on the marketing and sales of paper, namely a decrease in the number of requests from the export and domestic markets. This condition certainly has affected the marketing department because it is still determined to be able to sell paper to the market. Job as marketing tend to have a high risk of mental workload, because they are required to always involve the brain's performance in completing their work. The purpose of this study is to measure the level of mental workload in the marketing department at the manager level, namely the regional managers and product managers in meeting their job demands, especially during the Covid-19 pandemic. The method used to measure the mental workload of managers is NASA TLX method. From the research results, it is found that 42% of manager had a high level of mental workload and the remaining 58% were in the very high category.

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