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All Journal Sistemasi: Jurnal Sistem Informasi JURNAL TEKNOLOGI DAN OPEN SOURCE Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Teknik Informatika Journal of Informatics and Electronics Engineering Proceeding Applied Business and Engineering Conference Journal of Embedded Systems, Security and Intelligent Systems Jurnal Elektronika dan Teknik Informatika Terapan Saber: Jurnal Teknik Informatika, Sains dan Ilmu Komunikasi Jurnal Informatika Polinema (JIP) Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika Saturnus: Jurnal Teknologi dan Sistem Informasi TANJAK : Jurnal Pengabdian Kepada Masyarakat INOVTEK Polbeng - Seri Informatika Jurnal Teknik Informatika dan Teknologi Informasi
Muhammad Asep Subandri
Politeknik Negeri Bengkalis
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Utilization of the Internet of Things for Improving Water Quality Management and Waste Efficiency in the Tofu Industry Reinaldi Teguh Setyawan; Muhammad Asep Subandri
Journal of Innovation and Technology Polbeng Series on Informatics (INOVTEK Polbeng - Seri Informatika) Vol. 9 No. 2 (2024): November
Publisher : P3M Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/khhtng77

Abstract

In Bengkalis, the challenges faced by the tofu industry are related to the use of mineral-rich, yellow-colored peat water, which often disrupts the quality and consistency of the products. To address this, this research combines Internet of Things (IoT) technology with Total Dissolved Solids (TDS) and pH sensors, integrating real-time monitoring and control of water quality and waste processing efficiency. The implementation of IoT enables automatic measurement and management of water and waste conditions, adaptation to fluctuations, and enhanced waste management effectiveness. Initial results show an improvement in water quality with a 20% reduction in TDS and stabilization of pH from 6.5 to 7.4, as well as an increase in waste processing efficiency with a 30% reduction in the volume of waste disposed of. The application of this technology not only supports environmental and economic sustainability in Bengkalis but also offers significant operational cost savings and better compliance with environmental regulations. This finding is expected to encourage the adoption of similar technologies in other tofu industries in areas with similar water conditions, promoting greener and more sustainable production practices.
Optimalisasi Aplikasi Flutter Untuk Sistem Point Of Sales (POS) Pada Perangkat Mobile Low End Yosi Rumandha; Muhammad Asep Subandri
Journal of Informatics and Electronics Engineering Vol. 6 No. 01 (2026): Juni 2026
Publisher : Unit Penelitian dan Pengabdian kepada Masyarakat Politeknik TEDC Bandung Jl. Pesantren Km 2 Cibabat Cimahi Utara – Cimahi 40513 Jawa Barat – Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70428/jiee.v6i01.1622

Abstract

Aplikasi kasir sederhana berbasis Flutter ini dikembangkan untuk membantu pelaku UMKM dalam melakukan pencatatan keuangan dan pengelolaan data barang secara mudah dan efisien. Banyak aplikasi kasir yang tersedia saat ini masih dianggap berat dan membutuhkan perangkat berspesifikasi tinggi, sehingga tidak cocok untuk perangkat low-end. Aplikasi ini dirancang agar dapat berjalan secara offline dengan antarmuka yang sederhana dan ringan. Fitur utamanya meliputi pengelolaan data barang, pencatatan pemasukan dan pengeluaran, serta laporan pembukuan sederhana. Hasil pengujian menunjukkan bahwa aplikasi dapat berjalan stabil pada perangkat berspesifikasi rendah dan membantu pelaku usaha dalam mencatat keuangan secara praktis dan efisien.
Peningkatan Performa Restful API Menggunakan Teknik Caching Dan Query Optimization Agus Saputra; Muhammad Asep Subandri; Depandi Enda
Journal of Informatics and Electronics Engineering Vol. 6 No. 01 (2026): Juni 2026
Publisher : Unit Penelitian dan Pengabdian kepada Masyarakat Politeknik TEDC Bandung Jl. Pesantren Km 2 Cibabat Cimahi Utara – Cimahi 40513 Jawa Barat – Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70428/jiee.v6i01.1652

Abstract

RESTful API memegang peranan vital dalam pertukaran data arsitektur aplikasi modern. Namun, sistem monitoring lalu lintas di Politeknik Negeri Bengkalis menghadapi kendala performa akibat penggunaan teknik polling berkala, yang menyebabkan tingginya beban trafik, latensi, dan kegagalan respons. Penelitian ini bertujuan menganalisis efektivitas penerapan teknik caching berbasis Redis dan query optimization (meliputi indexing dan penyederhanaan query) untuk meningkatkan performa API. Metode penelitian menggunakan pendekatan eksperimental dengan load testing menggunakan Apache JMeter pada skenario beban 50 hingga 250 pengguna virtual. Hasil pengujian menunjukkan peningkatan performa yang signifikan setelah optimasi. Pada skenario beban normal (50 pengguna), rata-rata waktu respons (average response time) berhasil diturunkan dari 36.307 ms menjadi 192 ms. Kapasitas pemrosesan (throughput) meningkat drastis dari 1,1 menjadi 11.89 request per detik. Selain itu, optimasi ini berhasil menurunkan tingkat kesalahan (error rate) dari kisaran 18-29% pada kondisi awal menjadi 0% pada beban menengah, serta menjaga stabilitas sistem pada beban puncak. Penelitian ini menyimpulkan bahwa kombinasi caching dan optimasi query sangat efektif dalam menangani beban trafik tinggi pada sistem berbasis polling.
Strategi Pengamanan Kode Dalam Meningkatkan Kualitas Perangkat Lunak Berbasis Web Dian Utami; Muhammad Asep Subandri
Journal of Informatics and Electronics Engineering Vol. 6 No. 01 (2026): Juni 2026
Publisher : Unit Penelitian dan Pengabdian kepada Masyarakat Politeknik TEDC Bandung Jl. Pesantren Km 2 Cibabat Cimahi Utara – Cimahi 40513 Jawa Barat – Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70428/jiee.v6i01.1658

Abstract

Perangkat lunak berbasis web rawan mengalami berbagai serangan siber seperti XSS, SQL Injection, Path Traversal, CSRF, dan File Upload Vulnerability yang disebabkan oleh kelemahan pada implementasi kode program. Penelitian sebelumnya umumnya hanya mengidentifikasi kerentanan dan memberikan rekomendasi mitigasi menggunakan owasp zap, namun implementasi strategi pengamanan kode yang terintegrasi dan dievaluasi secara sistematis sebelum sistem dipublikasikan masih terbatas. sehingga, sebagian besar penelitian masih berfokus pada proses deteksi dan belum mengintegrasikan strategi pengamanan kode dengan kerangka pengujian keamanan yang sistematis. Penelitian ini bertujuan menerapkan strategi pengamanan kode perangkat lunak berbasis web dengan studi kasus pada sistem informasi akademik yaitu Akalink untuk mengurangi kerentanan keamanan sebelum sistem dipublikasikan. Dalam studi ini, pendekatan yang diterapkan bersifat kualitatif dengan pendekatan deskriptif, dibantu kerangka kerja Software Testing Life Cycle (STLC) untuk proses pengujian yang sistematis. Pengujian dilakukan dengan bantuan perangkat OWASP ZAP untuk mengidentifikasi kerentanan sebelum dan sesudah implementasi strategi pengamanan. Strategi yang diterapkan meliputi validasi input, implementasi token CSRF, validasi dan pengamanan unggah berkas, controlled file storage, blade escaping, enkripsi data sensitif, serta rate limiting login. Hasil penelitian menunjukkan bahwa penerapan strategi pengamanan mampu menurunkan jumlah temuan kerentanan dari 233 menjadi 60 temuan, sedangkan jenis kerentanan berkurang dari 14 menjadi 12 jenis. Hasil tersebut menunjukkan bahwa strategi pengamanan yang diterapkan terbukti efektif menurunkan jumalh kerentanan umum pada aplikasi web tanpa mengganggu fungsi utama sistem, sementara pendekatan STLC memberikan kerangka kerja yang sistematis dan menyeluruh untuk pengujian dan evaluasi keamanan perangkat lunak berbasis web.
Edge-Based Early Warning for High-Speed Boat Stability Monitoring Muhammad Asep Subandri; Jamal; Fajar Ratnawati; I Gusti Agung Putu Mahendra; Agus Tedyyana; Budhi Santoso
Journal of Embedded Systems, Security and Intelligent Systems Vol 7 No 3 (2026): September 2026
Publisher : Program Studi Teknik Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/jessi.v7i3.11866

Abstract

Purpose - This study aims to develop and evaluate an edge-based early warning prototype for monitoring the stability of high-speed boats using real-time motion data. Design/methods/approach – The study employs an engineering prototype validation design consisting of system requirement analysis, architecture design, implementation, and validation. The system integrates an IMU (MPU-6050) for motion sensing, a Raspberry Pi-based edge computing unit for real-time processing, rule-based classification (Normal/Warning/Critical), and an MQTT-based communication framework connected to the SHISTAMO dashboard. Prototype validation includes functional testing, platform integration, and operational monitoring using controlled scenarios and expert-labeled events. Findings - The results show that the prototype successfully performs end-to-end integration from sensing to visualization. The system achieved 90.4% classification accuracy, with high recall in detecting critical conditions (96.7%), ensuring reliable identification of high-risk events. The local alarm response time was 182 ms, while the dashboard update delay averaged 1.24 s, indicating near-real-time performance. Communication reliability was also high, with 98.8% data delivery success and 97.2% offline synchronization. Research implications/limitations – The findings demonstrate prototype-level feasibility; however, validation is limited to controlled scenarios and does not yet represent diverse sea conditions. The rule-based thresholds and comfort proxy require further calibration and validation through extended sea trials and reference instrumentation. Originality/value – This study contributes an integrated edge-based maritime monitoring prototype that combines motion sensing, offline-capable alarming, real-time telemetry, and fleet-level logging in a single system, specifically tailored to the operational needs of high-speed boats.
Penerapan Metode Simple Additive Weighting Pada Sistem Pemilihan Finalis Duta Kampus Zhafira Khairunnisa Azra; Fajri Profesio Putra; Muhammad Asep Subandri
Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika Vol. 2 No. 5 (2024): September : Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jupiter.v2i5.524

Abstract

The selection of campus ambassadors at Politeknik Negeri Bengkalis is one of the activities carried out annually. The selection of campus ambassadors aims to prepare the best students to become student representatives in internal and external campus activities. The campus ambassador assessment process is carried out in three stages, namely pre-quarantine, quarantine and grand final. A websitebased Decision Support System for campus ambassador finalist candidates is needed to help the committee and judges in the finalist selection process to be faster and more accurate. This system uses the Simple Additive Weighting (SAW) method which has weights on each criterion. The result of applying the SAW method to the system is to display rankings that can help in determining the campus ambassador finalist champion. From 31 field data, the application of the SAW method on this system has an accuracy of 96,6%. The software development method used is the Rational Unified Process (RUP).
Co-Authors Agus Saputra Agus Tedyyana, Agus Amirul Amirul Bella Kurnia Amellia Boby Rahman Boby Rahman Danuri Danuri Danuri Danuri, Danuri Deo Seti Aji Depandi Enda Dian Utami Fajar Ratnawati Fajri P. Putra Fajri Profesio Putra Fajri Profesio Putra Hamzan Wadi Herianto Herianto I Gusti Agung Putu Mahendra Jamal Jaroji Jaroji Kasmawi Muhammad Aidil Adham Muhammad Gala Garcya Muhammad Gala Garcya Muhammad Siddiq Putra, Fajri Profesio Putu Mahendra, I Gusti Agung Rahmat Fajrul Ratnawati, Fajar Reinaldi Teguh Setyawan Ryci Rahmatil Fiska Sani, Muhammad Santoso, Budhi Sofia Randa Supria Teguh Setyawan, Reinaldi Yosi Rumandha Zhafira Khairunnisa Azra