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Alan Maulana Alamsyah
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jriem@itb.ac.id
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Jl. Ganeca No.10, ITB , Gedung Matthias Aroef Labtek 3, Prodi Teknik Industri, Kec. Coblong, Kota Bandung, Jawa Barat, ID, 40132
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INDONESIA
Journal of Research in Industrial Engineering and Management
Published by Institut Teknologi Bandung
ISSN : -     EISSN : 30260663     DOI : https://doi.org/10.61221/jriem.v1i1
Core Subject : Education, Engineering,
Engineering Industrial & Manufacturing Engineering Other
Journal of Research in Industrial Engineering and Management (JRIEM) menerbitkan artikel ilmiah di bidang keilmuan teknik industri dan manajemen rekayasa.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 2 Documents
 1 
Search results for , issue "Vol 3 No 2 (2025): November 2025" : 2 Documents clear
Pengembangan Produk Multi-Item untuk Model Inventaris EOQ dengan Kualitas Barang Tidak Sempurna Harahap, Fariz; Harkinata, Dwitra; Kamaralo, Melviani Karolin; Hidayat, Yosi Agustina
Journal of Research in Industrial Engineering and Management Vol 3 No 2 (2025): November 2025
Publisher : Program Studi Teknik Industri, Fakultas Teknologi Industri, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61221/jriem.v3i2.31

Abstract

The competitive business environment encourages manufacturing companies to produce high-quality goods. However, companies often receive raw materials that do not meet production standards. These imperfect raw materials are caused by various factors such as improper shipping processes, damage, human error, and soon. This leads to a shortage of raw materials during the production process, necessitating reordering to meet production needs. The objective of this research is to develop a formulation model to determine the optimal ordering time intervals, order lot sizes, and total profit when a company has more than one raw material from a single supplier while considering the presence of defective goods. The research processes data by deriving the EOQ formula from a previous study model on single-item inventory policy with defective products, extending it to a multi-item inventory policy with defective products. The results show that the multi-item model generates 1.5 times higher total profit compared to the single-item model ($51,307 vs. $34,064 per unit per year). In addition, the ordering interval for the multi-item model is 52.1 days longer compared to the single-item model, which only has a 10-day interval. Finally, the multi-item model involves larger order lot sizes. Ordering raw materials simultaneously reduces ordering and holding costs, making the multi-item model more efficient and yielding higher profits than the single-item model.
Analisis Perancangan Sistem Monitoring untuk Perangkat Portable Smart Fish Feeder Berbasis Website Rofi'i, Ahmad Rofi'i
Journal of Research in Industrial Engineering and Management Vol 3 No 2 (2025): November 2025
Publisher : Program Studi Teknik Industri, Fakultas Teknologi Industri, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61221/jriem.v3i2.68

Abstract

The purpose of this research is to analyze the design of a website-based interface that supports a monitoring and scheduling system for portable smart fish feeders. Portable smart fish feeders are a technological innovation designed for the fish feeding process. This device consists of various components, some of which are ESP32 as a microcontroller, an ultrasonic sensor as a detector of feed availability on the device, a pH sensor as a reader of the acidity or alkalinity of pond water, and a stepper motor as a regulator of the opening of the feeding plate. From these components, several value data will be taken to be managed and stored in real-time in firebase and displayed on the interface website as monitoring information. The results of the analysis produce a website-based interface as a monitoring medium and feed scheduling to support the use of portable smart fish feeders that can be accessed through various devices, thereby increasing user flexibility. Based on the data analysis, a percentage of >50% was obtained which, when converted to descriptively based on the assessment scale, can be concluded that the software quality of the functionality suitability characteristics is acceptable and appropriate. The final calculation analysis obtained a percentage of 90% in the usability test. The score indicates that the software quality from the usability characteristics is appropriate and when interpreted with a Likert scale is included in the very good category. The success rate during this stage of testing was 98%, where according to Telcordia standards if the percentage result obtained ≥ 95% can be declared passed so that this website has met the reliability characteristics. Based on the results of the performance efficiency test in this study, it can be concluded that the feed monitoring and scheduling website created has met the performance efficiency characteristics.

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