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All Journal Jurnal Teknoin J@TI (TEKNIK INDUSTRI) Industrial and Systems Engineering Assessment Journal (INASEA) JURNAL ELEKTRO Jurnal Ilmiah Teknik Industri Resona : Jurnal Ilmiah Pengabdian Masyarakat JIEMS (Journal of Industrial Engineering and Management Systems) SABDAMAS Prosiding Seri Seminar Nasional Madani : Jurnal Pengabdian Kepada Masyarakat Proceeding Mercu Buana Conference on Industrial Engineering Jurnal Pengabdian Masyarakat Charitas Metris: Jurnal Sains dan Teknologi Widya Teknik
Trifenaus Prabu Hidayat
Universitas Katolik Indonesia Atma Jaya
Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences

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Optimasi Panjang Mainroll pada Industri Pulp & Paper untuk Kebutuhan Kertas HVS dengan Integer Programming Silalahi, Agustinus; Hidayat, Trifenaus Prabu; Hutahaean, Hotma Antoni; Suwasto, Febian
Metris: Jurnal Sains dan Teknologi Vol. 25 No. 02 (2024): Desember
Publisher : Prodi Teknik Industri, Fakultas Teknik - Universitas Katolik Indonesia Atma Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/metris.v25i02.5955

Abstract

PT. XYZ is a company engaged in the production of paper and pulp. These are two products are interrelated because to produce paper, raw materials are neededin the form of pulp. And often the paper production in the factory is excessive. This study aims to determine the optimal mainroll length according to demand so that overproduction will be minimized. The approach used is Integer Programming with the Branch and Bound method, where previously obtained combinations of possible paper arrangements on the mainroll with a maximum length of 80 km and a the width of 8,5 m. based on the optimal calculation results for the December 2022 production period, the mainroll length produced is 139,23 km which produced 14.891 reams for A4 paper, 10.539 reams for F4 paper and 10.239 reams for Q4 paper. The excess production of each type of paper was 0.34 %, 0,02 % dan 1,82 %, respectively. While the total overproduction for all types of paper sizes was 0,67 %. Production results in December 2022, overproduction of A4, F4 and Q4 were 1,15 %, 3,26 % and 2,92 %, respectively. While the total overproduction for all types of paper sizes was 2,28 %. The standart deviation of the calculation of real conditions is 1,13%, meaning that the deviation of excess production in real conditions is greater.
Redesign Facility Layout With Quantitative And Qualitative Method On Printing Industry Trifenaus Prabu Hidayat; Andre Sugioko; Gabriella Ratna Widiastuti
Widya Teknik Vol. 15 No. 2 (2016)
Publisher : Fakultas Teknik, Universitas Katolik Widya Mandala Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33508/wt.v15i2.909

Abstract

Performance and productivity production line system are very influenced by facility layout planning. Facilities composition if appropriate with flow of materials between departments, it will sustain the continuity of the system. PT. X engaged in the field of printing. Composition of the current layout facilities on the Plant has not fully optimized well and indeed has a potential possibility to be developed further in the future. This statement is supported from the result of existing MHPS which gives Rp 6.560.374,50 for total cost of material handling and 136329 metres for total distance. As for the purposes of this research are: evaluating the performance of current facility layout, designing the layout of the facility with qualitative and quantitative methods, comparing the current with proposed improvement layouts, as well as create a picture the new layout facility. The process of designing proposed layouts is done by using qualitative methods (CORELAP, BLOCPLAN & CRAFT) and quantitative methods (ABSMODEL & CRAFT) that both of the algorithms need same inputs, which are: current facility layout and the flow of material. Based from the results of calculation proposed layouts, show that layout from qualitative methods (CORELAP) gives maximal reduction to the total cost of material handling so that the amounts will be decreased to Rp 6.100.133,55 (reducing 7,02% from total cost of current layout), and 117264 metres for total distance (reducing 13,985%.). Kata kunci : facility layout, quantitative methods, qualitative methods
Sosialisasi Hasil Penelitian tentang Efektifitas Pupuk Organik, Anorganik dan Ampas Biogas Terhadap Pertumbuhan Tanaman Kangkung pada Dusun Cibitung, Desa Ponggang Hidayat, Trifenaus Prabu; Sugioko, Andre; Widawati, Enny; Antonius, David
Jurnal Pengabdian Masyarakat Charitas Vol. 5 No. 01 (2025): Jurnal Pengabdian Masyarakat Charitas
Publisher : Program Studi Teknik Industri, Fakultas Teknik, Universitas Katolik Indonesia Atma Jaya Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/charitas.v5i01.6673

Abstract

Cibitung Hamlet, Ponggang Village is one of four partner villages of the Industrial Engineering Study Program of Atma Jaya University (UAJ) in community service activities. Continuing economic development for Ponggang Village, the community service team saw an opportunity in Cibitung Hamlet to plant water spinach as a selling product and increase vegetable consumption for the Ponggang Village community. To support the planting of water spinach, fertile soil, sunlight, and water are needed. Fertilization is really necessary to increase or maintain plant fertility by adding artificial or natural nutrients. The Community Service Team conducted a preliminary study on the effect of organic fertilizers, inorganic fertilizers, fertilizers from biogas dregs (bioslurry), and no fertilizers, using the soil in Cibitung Hamlet on the growth of water spinach. Based on the results of the study, fertilizers using biogas dregs provided heavy metal content values below the limit and also provided a fairly good level of water spinach growth compared to the treatment of organic fertilizers, inorganic fertilizers, and no fertilizers. The results of his study were socialised to the community of Cibitung Hamlet, Ponggang Village in the form of community service
Usulan Perbaikan Kinerja Mesin Produksi Kulkas Dengan Metode Overall Equipment Effectiveness Dan Failure Mode And Effect Analysis (PT. XYZ) Prabu Hidayat, Trifenaus; Sugioko, Andre; Angelina, Cecilia
Metris: Jurnal Sains dan Teknologi Vol. 26 No. 01 (2025): Juni
Publisher : Prodi Teknik Industri, Fakultas Teknik - Universitas Katolik Indonesia Atma Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/metris.v26i01.6542

Abstract

PT XYZ is a company engaged in the household electronic equipment industry, one of which is refrigerator products. Two machines that are also responsible for the refrigerator production process are cold roll forming machines and PU injection machines. The refrigerator production process at PT XYZ is still considered ineffective because it does not reach the predetermined production target. The overall equipment effectiveness (OEE) method can assess the level of effectiveness of a machine based on three categories, namely availability, performance, and quality. Based on the results of calculating machine effectiveness using the OEE method, the two machines are below the ideal limit, namely 71.5% for the CRF machine and 57.22% for the injection machine, with a CRF machine performance value of 73.99% and 59.89% for the PU injection machine. An analysis of causes and solutions was carried out using the failure mode and effect analysis (FMEA) method using the risk priority number (RPN) assessment. The causes of low machine performance levels can provide solutions to improvements that must be made by the company. The recommended solution for the company is to apply preventive measures by adding UPS and generators to the factory, adding machine component damage detection sensors, and redesigning the jig.
Prioritas Perbaikan Aplikasi M-commerce dengan Importance Performance Matrix Analysis (IPMA) Hutahaean, Hotma Antoni; Silalahi, Agustinus; Prabu Hidayat, Trifenaus; Magdalena, Maria
Metris: Jurnal Sains dan Teknologi Vol. 26 No. 01 (2025): Juni
Publisher : Prodi Teknik Industri, Fakultas Teknik - Universitas Katolik Indonesia Atma Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/metris.v26i01.6782

Abstract

The utilization of mobile commerce (m-commerce) applications is closely linked to the examination of consumer loyalty. A substantial body of research underscores the significance of m-commerce services and user acceptance in enhancing customer retention. This study aims to investigate the correlation between usability and user loyalty within m-commerce platforms by applying Importance-Performance Matrix Analysis (IPMA) to identify critical areas for improvement. The research sample comprised 149 users of m-commerce applications. Findings from the IPMA indicate that the key areas for enhancement in terms of (1) loyalty include users’ ability to exercise control, the simplicity of control mechanisms, and overall ease of use; while for (2) usability, the priority aspects for improvement are error notification features, accuracy, and completeness of the application’s functionalities
ANALISIS KETERLAMBATAN PROSES PENGADAAN OBAT KARDIOVASKULAR RUMAH SAKIT SWASTA DI JAKARTA Nasihardani, Dana; Sukwadi, Ronald; Prabu Hidayat, Trifenaus; Pujianto, Hendri
J@ti Undip: Jurnal Teknik Industri Vol 20, No 2 (2025): Mei 2025
Publisher : Departemen Teknik Industri, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jati.20.2.85-94

Abstract

Penyakit kardiovaskular merupakan penyebab utama kematian di dunia, termasuk Indonesia, dengan angka kematian mencapai 650.000 per tahun. Ketersediaan obat yang tepat waktu menjadi faktor krusial dalam penanganan penyakit ini. Namun, banyak rumah sakit di Jakarta mengalami keterlambatan dalam pengadaan obat Kardiovaskular. Penelitian ini bertujuan mengidentifikasi faktor-faktor yang menyebabkan keterlambatan tersebut, antara lain proses birokrasi yang kompleks, kurangnya koordinasi antar pihak terkait, dan keterbatasan stok dari distributor. Hasil penelitian di salah satu rumah sakit swasta di Jakarta menunjukkan bahwa kekosongan stok di distributor menjadi penyebab utama keterlambatan dengan persentase sebesar 35%. Selain itu, kesalahan dalam pemilihan cabang distributor dan pemesanan ganda juga berkontribusi. Keterlambatan ini berdampak negatif terhadap kualitas layanan kesehatan dan keselamatan pasien, karena ketersediaan obat yang tidak memadai dapat menurunkan efektivitas pengobatan. Untuk itu, direkomendasikan  usulan strategi pencegahan dalam penanganan keterlambatan pengadaan obat dengan pendekatan FMEA(Failure Mode and Effect Analysis) dari hasil diagram fishbone penyusunan strategi pencegahan didasarkan pada tingkat prioritas risiko, sehingga intervensi difokuskan pada faktor penyebab yang memiliki dampak paling signifikan dan tingkat kemungkinan kejadian yang tertinggi.Abstract[Analysis of Delay in Procurement Process of Cardiovascular Drug in Private Hospitals in Jakarta] Cardiovascular disease is the leading cause of death in the world, including Indonesia, with a death rate of 650,000 per year. The timely availability of drugs is a crucial factor in the treatment of this disease. However, many hospitals in Jakarta experience delays in procuring cardiovascular drugs. This study aims to identify factors that cause these delays, including complex bureaucratic processes, lack of coordination between related parties, and limited stock from distributors. The study conducted at a private hospital in Jakarta revealed that stock vacancies at distributors accounted for 35% of the delays. Furthermore, errors in the selection of distributor branches and double ordering also played a significant role in the delays. These delays have a negative impact on the quality of health services and patient safety, as inadequate drug availability can reduce the effectiveness of treatment. For this reason, it is recommended to propose a preventive strategy in handling delays in drug procurement using the FMEA (Failure Mode  and Effect Analysis) approach. From the results of the fishbone diagram, the preparation of preventive strategies is based on the level of risk priority, so that interventions are focused on the causal factors that have the most significant impact and the highest probability of occurrence.Keywords: cardiovascular disease; drug procurement delays; distributor; healthcare quality; inventory management
Co-Authors Adiyatma Adiyatma Adrian Fortuna Setiawan Adrian, Bryan Adyatma Adyatma Aliffian Yanuwar Anastasia Kristinawati Andre Sugioko ANDRE SUGIOKO Angelina, Cecilia Antonius, David Bachri, Karel Octavianus Br. Hutapea, Yulitari Flora Theresa Catherina Resmi Hapsari Chendrasari Wahyu Oktavia Christine Natalia Christine Natalia Chyntia, Marcellina Denys - Enny Widawati Enny Widawati Febryan Sutomo Felix Eddy Sutoto Gabriella Ratna Widiastuti Gunawan, Harjadi Hapsari, Catherina Resmi Hotma Antoni Hutahaean Hotma Antoni Hutahaean Inderawati, Maria Magdalena Wahyuni Indra Kusno Jeassyca Ngaditeja Jordan Adrian Leonardy Johandinata Maria Goretti Yostiana Putri Maria Magdalena Mekel, Bianca Milano, Yosephan Nasihardani, Dana Nicholas Leonardy Johandinata Nur, Tajuddin Octaviani B.W., Sandra Pujianto, Hendri Redempta Aurelia Mentari Rio Wirawan Nicholas Rippun G.M., Ferry Ronald Sukwadi Ronald Sukwadi Sandra Octaviani Sebastian Gunawan Silalahi, Agustinus Sugioko, Andre Surya, Andre Suwasto, Febian Tjahjadi, Fanny Wahju, Marsellinus Bachtiar Wahju, Marsellinus Bachtiar Widiarto, Sandra Octaviani B. Williana, Catherine Wong, Felicitas Yohanes Yosua Lewi Manalu Yulitari Flora Theresa Br. Hutapea