Article Per Year (5 Year)
p-Index From 2020 - 2025
2.81
P-Index
This Author published in this journals
All Journal JISI UMJ (Jurnal Integrasi Sistem Industri UMJ) Jurnal Sistem dan Manajemen Industri JURNAL REKAYASA SISTEM INDUSTRI SABDAMAS Jurnal Pengabdian Masyarakat Charitas Metris: Jurnal Sains dan Teknologi
Silalahi, Agustinus
Universitas Katolik Indonesia Atma Jaya
Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Public Health Social Sciences Transportation

Published : 20 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 20 Documents
Search

 1   2 
Integrated analytic hierarchy process and mixed integer programming for supplier selection in mold and dies industry Silalahi, Agustinus; Sukwadi, Ronald; Pramesjwari, Duhita Al Hayyu; Oktavia, Chendrasari Wahyu; Natalia, Christine
Jurnal Sistem dan Manajemen Industri Vol. 3 No. 2 (2019)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (668.169 KB) | DOI: 10.30656/jsmi.v3i2.1765

Abstract

PT. GMT has a mission to deliver the products to the customer on time and high-quality products to improve services. Sometimes, the delivery of product delays caused by the raw materials delays or didn't meet specifications. Selection optimal suppliers of raw materials are one of the solutions. There are two factors must be considered for the selection of suppliers, qualitative factors and quantitative factors. In this study, for qualitative factors, based on the criteria needed by PT GMT. This research produces three Linear Programming models, first: a qualitative objective function that will be maximized called the Total Value of Purchase (TVP). TVP is an integration of the Analytical Hierarchy Process (AHP) and Mix Integer Programming Integration. Second, the quantitative objective function for the procurement cost of raw materials, which is called the Total Cost of Purchase (TCP). The third is to optimize qualitative and quantitative simultaneously using the Goal Programming method. The selection of suppliers based on TVP the total value is 97.25, and the total procurement cost is Rp. 36,914,000, based on TCP, the total value is 89.14, and the total of procurement cost is IDR 31,356,000, while based on Goal Programming, the total value is 93.18, and the total of procurement cost is IDR 32,621,000. PT GMT has been able to determine the optimal supplier based on the policies set.
Sosialisasi Usulan Perancangan Tata Letak Pabrik Pada PT Sari Kayu, Jakarta Timur Hidayat, Trifenaus Prabu; Sugioko, Andre; Widawati, Enny; Silalahi, Agustinus; Wahju, Marsellinus Bachtiar; Adrian, Bryan
Jurnal Pengabdian Masyarakat Charitas Vol. 1 No. 1 (2021): Jurnal Pengabdian Masyarakat Charitas Juni 2021
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.v1i1.2686

Abstract

The problem faced by PT Sari Kayu is that fluctuating production demand and high product variance make production inefficient. If the problem does not have a good factory layout, it affects material handling costs, material handling distances, and material handling time. For example, at PT Sari Kayu, there was a delay during a wrong project because the two projects were running simultaneously. The delay is due to the lack of resistance of the production floor to sudden high fluctuations in production demand. In addition, product variance is also a factor in the longer production process due to the different sequence of production processes and less supportive machine layouts. It is hoped that with the proposed layout, PT Sari Kayu will be able to face the fluctuating demand for production.
Pelatihan Pembuatan Green packaging Untuk Pembungkus Sayuran Hidroponik Mom’s Farm yang Ramah Lingkungan di Kampung Nagrek Silalahi, Agustinus; Natalia, Christine; Prasetya, Wibawa; Lictyawati, Marcellina Cynthia
Jurnal Pengabdian Masyarakat Charitas Vol. 1 No. 2 (2021): Jurnal Pengabdian Masyarakat Charitas Desember 2021
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.v1i2.2707

Abstract

Product packaging is an image or description of an object that protects and is an essential element in sales. Packaging design and packaging form have an essential role in influencing consumer decisions to buy a product. The better the packaging displayed by the company, the more consumers will decide to choose and buy the product. Mom's Farm, a joint effort between residents of Nagreg Village in Sampora Village and Unika Atma Jaya, which is engaged in urban farming, realises the importance of preserving the environment. This business produces daily hydroponic vegetables such as mustard greens and lettuce. Replacing the old plastic packaging with green packaging, from banana leaves, will attract more buyers because the products use unique and environmentally friendly packaging. Finally, in addition to benefiting from the vegetables consumed, buyers can also contribute directly to reducing plastic waste and supporting environmental conservation. This community service activity aims to provide insight into the importance of preserving the environment through green packaging and assisting in making packaging from banana leaves. The planned activity has done well, and the participants can quickly follow the teaching of making packaging from banana leaves. Furthermore, based on the results of the feedback questionnaire, the participant's assessment also showed that overall, the informants received good and excellent scores in delivering the material.
Pendampingan Promosi Online Sayuran Hidroponik Mom's Farm Di Kampung Nagreg Hidayat, Trifenaus Prabu; Natalia, Christine; Silalahi, Agustinus; Sugioko, Andre; Chyntia, Marcellina
Jurnal Pengabdian Masyarakat Charitas Vol. 2 No. 01 (2022): Jurnal Pengabdian Masyarakat Charitas Juni 2022
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.v2i01.3545

Abstract

Mom’s Farm adalah sebuah usaha penanaman sayuran organic yang merupakan sebuah program pengabdian masyarakat yang dilakukan dan dinaungi oleh Fakultas Teknik Universitas Katolik Indonesia Atma Jaya dalam bidang penanaman tanaman hidroponik dan urban farming yang bekerja sama dengan Desa Sampora khususnya Kampung Nagrek. Dalam menajalankan roda usaha, mom’s farm mengalami kendala dalam menyalurkan produk kepada konsumen. Pendistribusian hasil panen yang belum jelas dan maksimal akan menyebabkan para petani di Mom’s Farm dirugikan karena kurang efektif dan efisiennya sistem pendistribusian hasil panen sehingga diduga akan mengakibatkan terjadinya kurangnya pendapatan yang diterima petani. Maka dari itu perlu dilakukan pembinaan pemasaran produk lebih lanjut dimana dalam hal ini adalah Pendampingan Pemasaran Mom’s Farm dengan Aplikasi Digital Marketing seperti Grab dan Tokopedia. Diharapkan dengan diberikannya pendampingan mengenai pemasaran produk secara online akan menarik pembeli yang lebih lagi bagi usaha Mom’s Farm. Sehingga selain mendapat konsumen secara offline seperti yang sudah ada, namun juga bisa menjangkau konsumen baru yang lebih luas.
Sosialisasi dan Workshop Penyusunan Roadmap Kajian SNI Meja dan Kursi Sekolah Tahun 2022-2024 TIUAJ, Yanto; Hutahaean, Hotma A.; Sukwadi, Ronald; Silalahi, Agustinus
Jurnal Pengabdian Masyarakat Charitas Vol. 2 No. 02 (2022): Jurnal Pengabdian Masyarakat Charitas Desember 2022
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.v2i02.4074

Abstract

This activity aimed to develop roadmap for the future study of national standard of chair and desk to be used by both researchers in the Pusat Riset Teknologi Pengujian dan Standar, Badan Riset dan Inovasi Nasional (PRTPS – BRIN) and Industrial Engineering Department, Atma Jaya Catholic University. Prior to developing roadmap, a workshop has been conducted to provide researchers with the basic knowledge of anthropometry, standardization of measurements, measurement illustrations and how to apply such data for design, in particular for school furniture design and evaluation. The roadmap could be used as guideline to conduct future research topics related to the national standard of school furniture for all level.
Pendampingan Kegiatan Pemasaran Produk Kemasan Berbahan Lele Segar dan Lele Asap Indriati, Kumala; Mahyastuty, Veronica Windha; Mulyadi, Melisa; Silalahi, Agustinus
Jurnal Pengabdian Masyarakat Charitas Vol. 3 No. 01 (2023): Jurnal Pengabdian Masyarakat Charitas Juni 2023
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.v3i01.4360

Abstract

In accordance with the theme of the 77th Independence Day of the Republic of Indonesia "Recover Faster and Rise More Strong", it is necessary to revive the community's economy. Organization KNPI (Indonesian National Youth Committee) with youth organizations others in the Cisauk sub-district are trying to encourage the revival of the economy society, especially MSMEs driven by organizations youth or by citizen units. The activity held is a bazaar which is entitled “Cisauk Youth Fest”. For the implementation of this activity the Faculty Atma Jaya Unika Engineering partners with BUMDES to provide assistance in preparation for BUMDES participation in the "Cisauk Youth Fest" bazaar, which was carried out at Gate 3 of the BSD Intermodal Modern Market. This activity is in collaboration with the the manager of the BSD Cisauk Intermodal Modern Market for the provision of a place.
Sosialisasi Peningkatan Efisiensi Lantai Produksi dengan Rancang Ulang Tata Letak Pabrik PT SEI Prabu Hidayat, Trifenaus; Sugioko, Andre; Sukwadi, Ronald; Silalahi, Agustinus; Octaviani B.W., Sandra; Rippun G.M., Ferry
SABDAMAS Vol 2 No 1 (2023): SABDAMAS
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Unika Atma Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/sabdamas.v2i1.5023

Abstract

Permasalahan yang dihadapi oleh PT SEI adalah permintaan produksi yang fluktuatif dan variansi produk yang tinggi membuat produksi tidak efisien jika tidak memiliki tata letak pabrik yang baik karena memengaruhi biaya material handling, jarak material handling, dan waktu material handling. Sebagai contoh, pada PT SEI pernah terdapat delay pada saat salah proyek karena dua proyek tersebut berjalan bersamaan. Hal ini disebabkan ketahanan lantai produksi yang kurang terhadap fluktuasi permintaan produksi yang tiba–tiba tinggi. Selain itu, variansi produk juga menjadi faktor penyebab lebih lamanya proses produksi karena urutan proses produksi yang mungkin berbeda dan tata letak mesin yang kurang mendukung. Diharapkan dengan usulan tata letak PT SEI akan mampu menghadapi permintaan produksi yang fluktuatif. Kegiatan pengabdian kepada masyarakat ini dilaksanakan melalui beberapa tahapan, yaitu pembuatan proposal, pembuatan konten materi, pelaksanaan, dan evaluasi pelaksanaan kegiatan sosialisasi. Adapun pesertanya adalah pimpinan perusahaan dan karyawan bagian operasional. Dari evaluasi kegiatan didapatkan hasil bahwa umpan balik baik dan sangat baik dari setiap kriterianya. Melalui kegiatan sosialisasi ini diharapkan PT SEI dapat memenuhi kebutuhan produksi untuk menghadapi permintaan produksi yang fluktuatif.
PENGARUH LINGKUNGAN FISIK DAN SETTING MOUSE TERHADAP AKURASI MENEMBAK GAME FIRST PERSON SHOOTER Sukwadi, Ronald; Damasputra, Albertus Nugi Prasetya; Silalahi, Agustinus; Prasetya, Wibawa; Silitonga, Riana Magdalena
JURNAL REKAYASA SISTEM INDUSTRI Vol 10 No 1 (2024): November 2024
Publisher : Universitas Putera Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33884/jrsi.v10i1.9208

Abstract

The First-Person Shooter (FPS) game genre has gained significant popularity in the e-sports industry during 2022-2023. This study investigates the impact of physical environment and mouse settings on shooting accuracy in FPS gameplay. Participants were divided into beginner and advanced groups based on experience and playtime, or “flight hours.” Key variables include environmental factors—such as lighting and room temperature—and mouse settings, including mouse weight and DPI. Experiments were conducted using the AimLab application, with ANOVA and ANOM statistical tests used to determine optimal conditions. For advanced players, the ideal settings were identified as a room temperature of 16°C, no lighting, and a mouse weight of 100 grams. For beginners, the optimal condition was a room temperature of 16°C.
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.
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
Co-Authors Adrian, Bryan Chendrasari Wahyu Oktavia Christine Natalia Chyntia, Marcellina Damasputra, Albertus Nugi Prasetya Enny Widawati Fendi, Su Ghea Ghoniyyah Setiadi Goenawan, Stephanus Ivan Heryanto, Timotius Hotma Antoni Hutahaean Hutahaean, Hotma A. Indriati, Kumala Jessica Khantidevi Khantidevi, Jessica Lictyawati, Marcellina Cynthia Lydia, Antonia Maria Angela Kartawidjaja Maria Magdalena Melisa Mulyadi Octaviani B.W., Sandra Pramesjwari, Duhita Al Hayyu Riana Magdalena Rippun G.M., Ferry Ronald Sukwadi Setiadi, Ghea Ghoniyyah Su Fendy Sugioko, Andre Suwasto, Febian Thu, Nguyen Thi Bich TIUAJ, Yanto Trifenaus Prabu Hidayat Veronica Windha Mahyastuty Vivi Triyanti Wahju, Marsellinus Bachtiar Wibawa Prasetya Wibowo, Alfian Adhi Setyo Yanuwar, Aliffian Zefanya, Eva Angelica