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Jurnal Sistem Informasi Galuh
Published by Universitas Galuh
ISSN : -     EISSN : 29647746     DOI : https://doi.org/10.25157/jsig.v1i2.2949
Core Subject : Science,
Computer Science & IT
JSIG (Jurnal Sistem Informasi Galuh) dimaksudkan sebagai media kajian ilmiah hasil penelitian, pemikiran, dan kajian kritis-analitik mengenai penelitian di bidang ilmu dan teknologi komputer, termasuk Teknik Sistem, Teknik Informatika/Teknologi Informasi, Informatika Manajemen, dan Sistem Informasi. sebagai bagian dari semangat menyebarluaskan ilmu yang dihasilkan dari penelitian dan pemikiran untuk pengabdian kepada masyarakat luas. Selain itu, JSIG juga menjadi sumber referensi bagi para akademisi di bidang Ilmu Komputer dan Teknologi Informasi. JSIG (Jurnal Sistem Informasi Galuh) menerbitkan makalah secara berkala dua kali dalam setahun, yaitu pada bulan Januari dan Juli. Semua publikasi di jurnal JSIG bersifat terbuka, memungkinkan artikel tersedia gratis secara online tanpa berlangganan. JSIG (Jurnal Sistem Informasi Galuh) menerima artikel ilmiah dengan ruang lingkup penelitian: 1. Rekayasa Perangkat Lunak 2. Rekayasa Sistem 3. Sistem pakar 4. Sistem Pendukung Keputusan 5. Data Warehouse 6. Sistem Kecerdasan Buatan 7. Jaringan komputer 8. Pengolahan citra 9. Sistem Informasi 10. Sistem Basis Data 11. IoT 12. Machine Learning 13. Topik kajian lain yang relevan
Arjuna Subject : Ilmu Komputer (semua kategori) - Sistem Informasi
Articles 75 Documents
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Analisis Prediksi Kadar CO₂ (PPM) Berdasarkan Suhu Dan Kelembapan Menggunakan Sensor DHT22 Dan MQ135 Dengan Perbandingan Model Machine Learning Berbasis IoT Pada ESP32 Agung Suburdjati, Bacilius; Sukoco, Lisda; Cedric, Xavier
Jurnal Sistem Informasi Galuh Vol 4 No 1 (2026): Journal of Galuh Information Systems
Publisher : Fakultas Teknik Jurusan Sistem Informasi Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/jsig.v4i1.5726

Abstract

This study aims to analyze and predict carbon dioxide (CO₂) concentration in parts per million (PPM) based on temperature and humidity using DHT22 and MQ135 sensors integrated with an ESP32 microcontroller as an Internet of Things (IoT) system. Data were collected in two measurement sessions. The first session was conducted from 16:00 to 20:00 with a one-second sampling interval, during which significant spikes occurred due to exposure to insecticide fumes. The second session was carried out from 00:00 to 08:00 with a two-second sampling interval, producing approximately 13,000 more stable data points suitable for machine learning analysis. The collected data were processed using several machine learning algorithms, including Linear Regression, Random Forest, CatBoost, LightGBM, XGBoost, and Neural Network (Keras). The results indicate that the CatBoost model achieved the best performance, with an accuracy of 98.9%, a Mean Absolute Error (MAE) of 2.75, and a Mean Relative Error (MRE) of 1.08%. This study demonstrates that an ESP32-based IoT implementation using integrated gas and temperature sensors can be utilized as a simple air quality prediction system and serve as a foundation for developing future intelligent environmental monitoring devices.
Virtualization Analisis Kinerja CPU dan RAM pada VirtualBox untuk Validasi Lingkungan IaaS Lokal Restu Prayoga, Hendrika; Latifah, Noor
Jurnal Sistem Informasi Galuh Vol 4 No 1 (2026): Journal of Galuh Information Systems
Publisher : Fakultas Teknik Jurusan Sistem Informasi Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/jsig.v4i1.5735

Abstract

In cloud computing, the Infrastructure as a Service (IaaS) model relies heavily on virtualization technology. Developers commonly use Type-2 hypervisors as local testing environments before deploying systems to the actual cloud, with Oracle VM VirtualBox being one of the most widely used platforms. However, the additional virtualization layer can introduce performance overhead on critical resources such as CPU and RAM, potentially affecting the validity of test results. This study aims to measure the percentage of CPU and RAM performance overhead caused by VirtualBox. A comparative quantitative experiment was conducted by evaluating the performance of the Host Operating System (OS) as the baseline and the Guest OS running on VirtualBox using specialized benchmarking tools. The findings indicate increased RAM latency and reduced CPU performance. These results assist developers in optimizing resource allocation and provide essential empirical data to evaluate the feasibility of using VirtualBox as a tool for performance validation in IaaS environments. Additionally, this study highlights how variations in VirtualBox configurations—such as the number of virtual cores and the amount of allocated RAM—affect the magnitude of overhead. This demonstrates that improper configuration choices can lead to significant performance deviations when compared to physical system conditions.
Sistem Informasi Pembelian dan Penjualan Pupuk Disertai dengan Perhitungan Harga Pokok Produksi yang Dilengkapi Tracking Pengiriman Stevanoes, Alvian; Rizky Wicaksono, Soetam
Jurnal Sistem Informasi Galuh Vol 4 No 1 (2026): Journal of Galuh Information Systems
Publisher : Fakultas Teknik Jurusan Sistem Informasi Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/jsig.v4i1.5749

Abstract

This study was conducted with the aim of designing and developing an information system for fertilizer distribution at PT. Subur Tani Utama. The system includes the recording of raw material purchases, inventory management, product repackaging processes, distribution to client factories, delivery tracking based on geolocation, and payment recording. The development method employed was the Waterfall model, consisting of requirements analysis, system design, implementation, and testing. The application was designed as a web-based system using PHP programming language and MySQL database, supported by a responsive user interface. The implementation results indicate that the system can generate integrated reports on inventory, distribution, repackaging costs, and payments. Therefore, the designed system supports the company’s internal operations by enabling more structured documentation and providing more accurate information for fertilizer distribution management.
Implementasi Ren’py pada Game Visual Novel Tempat Bersejarah Kabupaten Demak Arielaura Yulian Titanica; Febrian Wahyu Christanto; Aldian Umbu Tamu Ama; Rian Dwicahya Supriatman; Luffi Septian
Jurnal Sistem Informasi Galuh Vol 4 No 2 (2026): Journal of Galuh Information Systems
Publisher : Fakultas Teknik Jurusan Sistem Informasi Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/jsig.v4i2.5929

Abstract

This research explores the use of games as a learning medium to enhance children’s knowledge of historical sites in Demak Regency. A survey of 50 junior high school students revealed that 13.3% were unaware of historical sites, while 80% had moderate awareness. To address this, an educational game in the visual novel genre was developed, presenting stories through images and interactive character dialogues. The game was developed using Ren’Py and the Multimedia Development Life Cycle (MDLC) method, which includes concept definition, design, material collection (characters, scenarios, animations, and audio), development, testing (Alpha and Beta), and distribution via Google Drive. The game aims to attract younger generations and encourage interest in learning history, particularly in Demak. Evaluation results show an average user satisfaction rate of 85%, categorized as “strongly agree.” This indicates that the visual novel-based educational game is an effective alternative learning medium for improving children’s knowledge of historical sites.
ANALISIS APLIKASI DETEKSI DINI STRES KERJA DENGAN METODE SYSTEM USABILITY SCALE (SUS) Tri Suwarno; Feri Luvita Sari
Jurnal Sistem Informasi Galuh Vol 4 No 2 (2026): Journal of Galuh Information Systems
Publisher : Fakultas Teknik Jurusan Sistem Informasi Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/jsig.v4i2.6027

Abstract

Work stress is a significant challenge that can affect the productivity and well-being of educational staff in higher education environments. This study aims to develop a web-based early detection application for work stress as a promotive and preventive mental health measure for the educational staff at the Faculty of Medicine, Universitas Islam Indonesia (FK UII). The research utilized the Waterfall model for system development. The stages included requirements analysis, system design, implementation, functional testing, and usability evaluation. The application was developed using the PHP programming language and integrates two psychometric scales that have been validated and adapted into Indonesian: the Role Stress Scale and the Job Stress Scale. System evaluation was conducted using a quantitative approach via the System Usability Scale (SUS) questionnaire, completed by 63 educational staff respondents. The testing results demonstrated a 100% functional success rate for key features such as registration, login, questionnaire completion, and result access, indicating that the application prototype functioned according to the technical plan. An average SUS score of 79.56 indicates that the application possesses an excellent level of usability, surpassing industry standards. This application is expected to serve as an innovative digital solution that supports the mental health of educational staff within higher education institution.
Klasifikasi Sentimen Ulasan Baby Panda School Bus Menggunakan N-Gram TF-IDF dan XGBoost Basworo Ardi Pramono; Kharisma Ayu Febriana; Susanto
Jurnal Sistem Informasi Galuh Vol 4 No 2 (2026): Journal of Galuh Information Systems
Publisher : Fakultas Teknik Jurusan Sistem Informasi Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/jsig.v4i2.6047

Abstract

User reviews on Google Play Store provide valuable information for understanding user perception of mobile applications, including children's educational games. However, review data are commonly unstructured, informal, and difficult to analyze manually. This study aims to classify the sentiment of Baby Panda School Bus game reviews using lexicon-based pseudo-labeling, word n-gram TF-IDF, and XGBoost. The dataset was collected from Google Play Store and contained 6,299 initial reviews. After duplicate removal, text cleaning, normalization, tokenization, stopword removal, and stemming, 5,337 reviews were used for modeling. Sentiment labels were generated automatically using the InSet lexicon into positive, neutral, and negative classes. The dataset was split into 80% training data and 20% testing data using stratified sampling. The selected text representation was word n-gram TF-IDF with unigram, bigram, and trigram features, followed by XGBoost classification. The experimental results achieved an accuracy of 85.86%, macro F1-score of 83.57%, and weighted F1-score of 85.61%. These findings indicate that n-gram TF-IDF and XGBoost can effectively classify lexicon-based sentiment patterns in Indonesian mobile application reviews.
Perancangan Proses Bisnis Sekolah Musik Dengan Menggunakan Business Process Model And Notation Kanggep Andrijana Kusuma; Angga Prama Agusmar Yahya; Alman Naufal; Shanti Maulani; Deassy Ratna Juwita Sari
Jurnal Sistem Informasi Galuh Vol 4 No 2 (2026): Journal of Galuh Information Systems
Publisher : Fakultas Teknik Jurusan Sistem Informasi Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/jsig.v4i2.6054

Abstract

This study aims to analyze the business processes that occur in music schools to improve operational effectiveness and efficiency. The research method used is a descriptive qualitative approach with data collection techniques in the form of observation, interviews, and documentation. The results of the study indicate that the music school business process consists of seveal main stages, namely student registration, class scheduling, learning processes, payments, and evaluation. Business process modeling was carried out using Business Process Model and Notation (BPMN) to systematically visualize the workflow.  Based on the analysis conducted, several obstacles were found such as a manual recording system, potential schedule conflicts, and a suboptimal payment system. Therefore, it is recommended to implement an integrated information system to improve service quality and operational efficiency of music schools.
Pemetaan Objek Wisata di Kabupaten Pemalang Berbasis WebGIS Andi Dwinata; Bita Parga Zen; Eryan Ahmad Firdaus; Firdaus Laia
Jurnal Sistem Informasi Galuh Vol 4 No 2 (2026): Journal of Galuh Information Systems
Publisher : Fakultas Teknik Jurusan Sistem Informasi Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/jsig.v4i2.6069

Abstract

Pemalang Regency, an area rich in tourism potential, needs a system that can map tourist attractions efficiently. In order to meet these needs, WebGIS technology is an attractive solution. With this platform, information about tourist attractions in Pemalang Regency can be accessed easily via the internet, facilitating tourists and the local government to get the necessary information quickly and accurately. The Scrum development method was chosen to build an effective and responsive system, allowing iterative and adaptive development according to user and environmental needs. This research uses a Laravel backend for managing business logic, a React.js front-end for a responsive user interface, and a MySQL database for data storage. The aim of this research is to increase the accessibility of information about tourist attractions in Pemalang Regency via the internet, facilitate tourism promotion, and improve the efficient management of tourism potential. The result is a website that provides geographical information about tourist attractions in Pemalang Regency, which can be accessed online anytime and anywhere. This website makes it easy for users to find information regarding locations, facilities and activities at various tourist attractions. It is hoped that this system can help tourists plan their trips better and assist local governments in more effective tourism promotion. By utilizing modern technology and structured development methods, this system will provide an interactive and satisfying user experience. Its implementation is expected to have a positive impact on the local tourism industry and the economic growth of Pemalang Regency as a whole. This is an effort to combine information technology with the tourism sector to create sustainable and competitive solutions in today's digital era
Pengaruh Meditasi Terhadap Tingkat Kecemasan dengan Pengukuran HRV Berbasis Sensor MAX30102 Bacilius Agung Suburdjati; Lisda Sukoco; Claire Gretchen Tjandraprawira; Brenda Orvala Lawantara
Jurnal Sistem Informasi Galuh Vol 4 No 2 (2026): Journal of Galuh Information Systems
Publisher : Fakultas Teknik Jurusan Sistem Informasi Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/jsig.v4i2.6079

Abstract

This study aims to analyze the effect of an intervention (meditation sessions) on subjects’ anxiety levels, which were objectively measured through Heart Rate Variability (HRV) using the MAX30102 sensor. Anxiety has become an increasingly dominant mental health issue in modern society, creating the need for non-pharmacological and measurable intervention methods. The study employed a One Group Pretest-Posttest Design involving six subjects, in which physiological indicators (BPM, SDNN, RMSSD, SpO2, and HRV) were measured before and after the intervention. Statistical results showed a significant effect of meditation on the autonomic nervous system. The subjects’ average heart rate (BPM) decreased by 19%, with a Cohen’s d effect size of -2.53, indicating a very large effect in reducing stress responses. There was also a significant increase in HRV, as demonstrates that meditation is physiologically effective in improving subjects’ resilience to stress. The combination of the MAX30102 sensor technology and HRV analysis provides a valid tool for monitoring and managing anxiety.
I Implementasi Model Observers Laravel Pada Activity Logging Sistem Informasi Penjualan Usep Abdul Rosid; Chepy Perdana
Jurnal Sistem Informasi Galuh Vol 4 No 2 (2026): Journal of Galuh Information Systems
Publisher : Fakultas Teknik Jurusan Sistem Informasi Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/jsig.v4i2.6088

Abstract

An activity logging component within a sales information system is critical for maintaining data integrity and internal audit accountability. In conventional web application development, developers frequently embed logging scripts directly inside business controllers, which triggers code redundancy and violates the Separation of Concerns (SoC) principle. This study aims to design and implement an automated audit trail component within a sales information system, with a case study conducted at XYZ. The system development follows the Waterfall SDLC methodology, encompassing requirements analysis, system and database design, and code implementation. The implementation results demonstrate that utilizing the booted method within Eloquent models completely isolates the auditing logic from the main business controllers. Furthermore, this research effectively mitigates state management amnesia within user interface pagination by formulating an adaptive routing redirect strategy during data creation. The engineered system successfully records structured log activities detailing user identities, localized timestamps, and comprehensive descriptions of data mutations without relying on any external third-party packages.

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