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Syaiful Zuhri Harahap
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Program Studi Sistem Informasi, Fakultas Sains & Teknologi, Universitas Labuhanbatu Jalan Sisingamangaraja No.126 A KM 3.5 Aek Tapa, Bakaran Batu, Rantau Sel., Kabupaten Labuhanbatu, Sumatera Utara 21418
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Journal of Computer Science and Information Systems (JCoInS)
Published by Universitas Labuhanbatu
ISSN : -     EISSN : 27472221     DOI : 10.36987
Core Subject : Science,
Computer Science & IT
Journal of Computer Science and Information Systems (JCoInS) - Journal of the Information Systems Study Program seeks to facilitate critical study and in-depth analysis of information system problems, this journal is an expert computer science scientist, information system scientist. e-ISSN : 2747-2221
Arjuna Subject : Ilmu Komputer (semua kategori) - Ilmu Komputer (Lain-Lain)
Articles 149 Documents
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Analisis Dan Optimalisasi Stok Barang di Toko Acc RPH Dengan Metode Program Linear Nasution, Adinda Ayu; Rambe, Ulfa Ufrona; Harahap, Ayu Sari; Sartika, Tiara; Ritonga, Irmayanti
Journal of Computer Science and Information System(JCoInS) Vol 6, No 2: JCoIns | 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jcoins.v6i1.6952

Abstract

Competition in the business world is becoming increasingly complex, especially in the rapidly growing mobile accessories industry. This study aims to analyze and optimize inventory management at Toko Acc RPH using the linear programming method. By considering market demand, production capacity, and profitability, this research applies the simplex method in linear programming to determine the optimal quantity of products to be stocked. The data used in this study includes inventory levels, selling prices, production quantities, and store demand. Analysis was conducted using QM for Windows software to obtain optimal stock distribution solutions. The results show that the store's inventory management strategy is efficient, ensuring that customers do not experience stock shortages despite limited inventory levels. Thus, the use of linear programming proves effective in optimizing inventory and improving operational efficiency.
Optimasi Keuntungan UMKM ATK (AlatTulis Kantor) Fotocopy Menggunkan Linear Programing (Studi Kasus Fotocopy Kumle) Urrizka, Annisa; Humairoh, Arsy; Manja, Dwi Putri; Harahap, Saima Putri; Ranandia, Windi; Ritonga, Irmayanti
Journal of Computer Science and Information System(JCoInS) Vol 6, No 1: JCoIns | 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jcoins.v6i1.6888

Abstract

Photocopy stationery stores face challenges in determining optimal prices to maximize profits while considering stock constraints, costs, and demand. This study uses a linear programming approach to solve this problem. The data used include reseller prices, selling prices, stock capacity, and market demand for seven types of goods. Validated using QM software for Windows. The results of the study indicate that this method successfully determines the optimal combination of selling price and production quantity, which provides a maximum profit of Rp910,000 per day. This approach provides a strategic solution for photocopy stationery managers in data-based decision making.
Optimasi Keuntungan Toko Buah Menggunakan Linear Programming Melalui Metode Simpleks (Studi Kasus : Toko Buah Sirandorung) Syahfitri, Diana; Priyanti, Dinda Octa; Pefrianti, Lenni; Syahputri, Tria; Ritonga, Irmayanti
Journal of Computer Science and Information System(JCoInS) Vol 6, No 1: JCoIns | 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jcoins.v6i1.6881

Abstract

Fruit stores face the challenge of determining optimal prices to maximize profits while considering stock constraints, costs, and demand. This research uses a linear programming approach with the simplex method to solve this problem. The data used includes reseller prices, selling prices, stock capacity and market demand for seven types of fruit. The manual process with the simplex method was validated using QM for Windows software. The research results show that this method is successful in determining the optimal combination of selling price and production quantity, which provides a maximum profit of IDR 666,000 per day. This approach provides a strategic solution for fruit shop managers in making data-based decisions.
Analisis Struktur Data Informatika Pada Platform Online Travel Agent Saipullah, Fasya; Simatupang, Reza Riansyah; Batubara, Ihsan Abdul Hafiz; Wijaya, Abdul Rahman; Gunawan, Indra
Journal of Computer Science and Information System(JCoInS) Vol 6, No 2: JCoIns | 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jcoins.v6i2.7409

Abstract

This study aims to determine how to analyze informatics data structures on online travel agent platforms. This study uses a qualitative descriptive approach with a literature study method that aims to explore and analyze the use and application of data structures in online travel agent (OTA) platforms. The results of the study indicate that data processing efficiency, user information security, and data search optimization on the Online Travel Agent (OTA) platform are highly dependent on the use of appropriate data structures. Data structures such as hash tables, graphs, queues, and linked lists have been shown to increase access speed, manage transactions efficiently, and strengthen security systems. In addition, the use of big data allows OTAs to analyze user behavior, predict ticket prices, and compile alternative flight routes. With structured and secure data management, the OTA platform is not only able to provide responsive services, but also maintain user trust and comfort.
Analisis Antrian Pendekatan Sistematis Untuk Mengurangi Waktu Tunggu di Klinik Kecantikan Rantauprapat Hasibuan, Zamrotus Sholeha; Panjaitan, Nurmala; Ritonga, Laila Hasanah; Rambe, Anisah Rahma; Ritonga, Irmayanti
Journal of Computer Science and Information System(JCoInS) Vol 6, No 2: JCoIns | 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jcoins.v6i1.6965

Abstract

Queues that occur at beauty clinics are often the main factor that causes inconvenience to customers, one of which is long waiting times. This study aims to analyze the queues at the Rantauprapat Beauty Clinic and propose a systematic approach to reduce waiting times. The method used in this study is queue analysis with a queuing theory approach, where customer arrival time and service time data are collected through direct observation at the clinic. The results of the analysis show an imbalance between the rate of customer arrivals and the available service capacity, which results in queue congestion. Therefore, it is recommended to implement a schedule-based queue management system or appointment system, add service personnel during peak hours, and improve the service system to speed up the process. By implementing these solutions, it is expected to reduce customer waiting time, increase operational efficiency, and provide a better experience for customers at the Rantauprapat Beauty Clinic.
Meningkatkan Efisiensi Layanan Fotokopi Melalui Metode Antrian Yang Tepat Audya, Anggi; Putri, Pujawati Kurnia; Hasibuan, Vivi Indriani; Srikandy, Yuyun Lili; Ritonga, Irmayanti
Journal of Computer Science and Information System(JCoInS) Vol 6, No 2: JCoIns | 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jcoins.v6i1.6896

Abstract

Efficient photocopying services are essential to meet customer needs in this fast-paced era. This article discusses the importance of implementing the right queuing method to improve the efficiency of photocopying services. With the increasing demand for photocopying services, long queues are often a problem that disrupts the customer experience. Through an analysis of various queuing methods, such as digital queuing systems, virtual queues, and self-service kiosks, this article identifies the advantages and disadvantages of each method. It also presents case studies of several copy shops that have successfully implemented modern queuing methods, showing significant improvements in waiting time and customer satisfaction. The results show that implementing the right queuing method not only reduces waiting time but also increases employee productivity and customer loyalty. This article is expected to provide insights for copy shop owners in optimizing their services through effective queue management.
Analisis Model Antrian Single Channel Single Phase Pada Pelayanan Publik SPBU Simpang Mangga Hasibuan, Mhd. Sahdani Rafli; Reza, Aldito Fiter Vanesa; Irawan, M Fahri; Yudha, Hasan Wira; Ritonga, Irmayanti
Journal of Computer Science and Information System(JCoInS) Vol 6, No 1: JCoIns | 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jcoins.v6i1.6883

Abstract

This research analyzes the single channel singlephase queuing model for public services at the Simpang Mangga Public Fuel Filling Station (SPBU). Public services play an important role in meeting the diverse needs of society, with efficiency and effectiveness becoming a major concern due to increasing public demands for quality services. Queuing models serve as a valuable approach to analyzing and optimizing service systems by understanding customer arrival patterns, service capacity, and service duration. This research uses quantitative methods with a descriptive-analytical approach, collecting data through direct observation for one hour to assess customer arrival times, service times and waiting times. The research results show that the average customer arrival interval is 5 minutes, with gas stations capable of serving 30 customers per hour. The level of service intensity (p) was recorded at 0.17, indicating that service facilities were only filled with customer service as much as 17%. The average number of customers in the system (L) is 0.2, and the average number of customers waiting (Lq) is 0.03. The average time spent by customers in the system (W) is 0.04 minutes, while the average waiting time in queue (Wq) is 0.01 minutes. These findings highlight the effectiveness of single-phase single-channel models in improving service efficiency and customer satisfaction. Recommendations include increasing service capacity and optimizing the queuing system to reduce waiting times and improve overall service quality.
Studi Literatur : Perancangan Dan Implementasi Sistem Peminjaman Dan Pengembalian Barang Digital Berbasis Web Pada Perpustakaan Digital Saipullah, Fasya; Simatupang, Reza Riansyah; Batubara, Ihsan Abdul Hafiz; Wijaya, Abdul Rahman; Gunawan, Indra
Journal of Computer Science and Information System(JCoInS) Vol 6, No 2: JCoIns | 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jcoins.v6i2.7410

Abstract

This study aims to determine how to design and implement a web-based digital goods lending and returning system in a digital library. This study uses a qualitative descriptive approach with a literature study method. The results of the study indicate that the implementation of a web-based digital goods lending and returning system generally makes a major contribution to increasing efficiency, effectiveness, and security in the administrative process, both in educational environments, companies, and other sectors. The manual system that has been used so far has been proven to have many limitations, such as data inaccuracy, slow information search processes, and potential recording errors that can affect the reliability of stock and service data. By utilizing web-based technology, the lending and returning system can be designed to be more interactive, responsive, and integrated, making it easier for users to access and manage data in real-time. In addition, the use of this technology can also minimize human error, speed up workflows, and improve overall service quality.
Analisis Antrian Penjualan Pada UMKM Kebab KZL Aek Tapa Chahira, Mayang; Silvana, Mega; Huda, Nurul; Yusfina, Yusfina; Ritonga, Irmayanti
Journal of Computer Science and Information System(JCoInS) Vol 6, No 1: JCoIns | 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jcoins.v6i1.6825

Abstract

This article presents an analysis of the queuing system of UMKM Kebab KZL Aek Tapa with the aim of determining the optimal waiting time. This research uses observation and literature review methods to collect waiting time and service data. In the context of Kebab KZL, the queuing system used is a single channel model (M/M/1). Perform queue analysis using QM for Windows software to understand customer arrival and service trends. The analysis results show that the average waiting time of customers in the queue is 13 minutes, and the service utilization rate is 62%. These insights are expected to help UMKM Kebab KZL in improving the efficiency of the queuing system and service to customers.
Peneparan Medote Transportasi Untuk Analisa Pengiriman Barang Pada JNT Aek Nabara Suratika, Nadya; Manurung, Elisabeth Natasya; Harahap, Sri Handayani; Nasution, Iwan; Ritonga, Irmayanti
Journal of Computer Science and Information System(JCoInS) Vol 6, No 2: JCoIns | 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jcoins.v6i1.6972

Abstract

This research analyzes goods delivery transportation methods at JNT Aek Nabara, North Sumatra, with a focus on cost efficiency and service quality. The three types of services analyzed are Sure Tomorrow Arrive (YES), Regular (REG), and OKE. The analysis methods used, including North West Corner (NWC), Least Cost, and Vogel's Approximation Method (VAM), show potential cost savings of up to 15%. Additionally, sensitivity analysis reveals that large changes in distribution parameters can affect overall delivery efficiency. This research concludes that choosing the right transportation method is very important to increase efficiency and recommends regular evaluation of distribution strategies based on real-time data to meet customer expectations.

Page 12 of 15 | Total Record : 149

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