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All Journal Teika Jurnal Buana Informatika Jurnal Informatika JUITA : Jurnal Informatika ELINVO (Electronics, Informatics, and Vocational Education) Register: Jurnal Ilmiah Teknologi Sistem Informasi Binus Business Review JOIN (Jurnal Online Informatika) Jurnal Pendidikan Informatika dan Sains Medical Laboratory Technology Journal JURIKOM (Jurnal Riset Komputer) JURTEKSI JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) EDUMATIC: Jurnal Pendidikan Informatika JAD: Jurnal Riset Akuntansi & Keuangan Dewantara METIK JURNAL JSAI (Journal Scientific and Applied Informatics) Jutisi: Jurnal Ilmiah Teknik Informatika dan Sistem Informasi JATI (Jurnal Mahasiswa Teknik Informatika) Jurnal Tekinkom (Teknik Informasi dan Komputer) Infotek : Jurnal Informatika dan Teknologi Indonesian Journal of Cultural and Community Development Jurasik (Jurnal Riset Sistem Informasi dan Teknik Informatika) Jurnal Teknik Informatika (JUTIF) Jurnal Informatika Terpadu Decode: Jurnal Pendidikan Teknologi Informasi Indonesian Journal of Education Methods Development Indonesian Journal of Innovation Studies Prosiding Seminar Nasional Teknik Elektro, Sistem Informasi, dan Teknik Informatika (SNESTIK) PELS (Procedia of Engineering and Life Science) Proceedings of The ICECRS Procedia of Social Sciences and Humanities SAGA: Journal of Technology and Information Systems Prosiding SEMNAS INOTEK (Seminar Nasional Inovasi Teknologi) Indonesian Journal of Applied Technology Journal of Technology and System Information Kesatria : Jurnal Penerapan Sistem Informasi (Komputer dan Manajemen) IJHCS Smatika Jurnal : STIKI Informatika Jurnal
Rohman Dijaya
Informatika, Universitas Muhammadiyah Sidoarjo, Indonesia
Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Neuroscience Nursing Physics Public Health Social Sciences Transportation Other

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SISTEM PAKAR DIAGNOSA PENYAKIT PADA SAPI BERBASIS WEB MENGGUNAKAN METODE HYBRID Ilham Wahyu Firmansyah; Hindarto Hindarto; Rohman Dijaya; Irwan Alnarus Kautsar
JATI (Jurnal Mahasiswa Teknik Informatika) Vol. 10 No. 2 (2026): JATI Vol. 10 No. 2
Publisher : Institut Teknologi Nasional Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/jati.v10i2.17873

Abstract

Sapi adalah salah satu jenis hewan ternak yang memiliki peran penting dalam bidang pertanian dan peternakan, namun para peternak masih mengalami berbagai kesulitan dalam mendiagnosis penyakit akibat kurangnya pengetahuan dan akses terhadap profesional medis hewan. Keterlambatan dalam mengidentifikasi gejala penyakit dapat berakibat pada penanganan yang tidak tepat dan menurunkan produktivitas ternak. Penelitian ini dirancang untuk menciptakan dan mengembangkan sistem pakar yang berbasis web guna melakukan diagnose penyakit pada sapi, sebagai sebuah inisiatif untuk membantu peternak mendapatkan diagnosa awal dengan cepat dan akurat. Metode yang digunakan dalam penelitian ini adalah pendekatan hybrid yang memadukan Forward Chaining sebagai mekanisme inferensi dalam menentukan jenis penyakit berdasarkan gejala yang dipilih, serta Certainty Factor untuk menghitung tingkat kepastian dari hasil diagnosis. Sistem dikembangkan menggunakan bahasa pemrograman JavaScript dengan MySQL sebagai sistem manajemen basis data. Hasil penelitian menunjukkan bahwa sistem pakar yang dibangun mampu menghasilkan diagnosis penyakit pada sapi beserta tingkat keyakinannya, dan seluruh fungsi sistem berjalan dengan baik berdasarkan hasil pengujian fungsional menggunakan metode black box testing. Oleh karena itu, sistem ini dapat dimanfaatkan sebagai alat bantu diagnosis awal penyakit pada sapi berbasis web.
Mountain Climbing Safety Induction for Beginners Using Augmented Reality M Aldi Setiawan; Rohman Dijaya; Cindy Taurusta; Arif Senja Fitrani
SMATIKA JURNAL : STIKI Informatika Jurnal Vol 16 No 01 (2026): SMATIKA Jurnal : STIKI Informatika Jurnal
Publisher : LPPM Universitas Bhinneka Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32664/smatika.v16i01.2215

Abstract

The growing popularity of mountain climbing among novice participants has been accompanied by an increased risk of accidents, largely attributable to inadequate understanding of safety procedures. Conventional safety induction methods—primarily verbal briefings and printed materials—lack interactivity and fail to adequately simulate real climbing conditions. While prior research has examined general safety education and conventional multimedia learning approaches, the application of markerless augmented reality (AR) as an interactive, mobile-based safety induction tool specifically designed for beginner mountain climbers remains underexplored . Accordingly, this study aims to develop and evaluate an Android-based markerless AR application to enhance pre-climbing safety induction for novice climbers.  The application was developed following the Multimedia Development Life Cycle (MDLC), encompassing the stages of concept development, design, material collection, assembly, testing, and distribution. Functional performance was assessed using black-box testing, while feasibility was evaluated through a Likert-scale questionnaire administered to 20 beginner climbers.  Black-box testing confirmed that all system functionalities operated as intended. The feasibility evaluation yielded a score of 87%, indicating a good to very good level of acceptance among users. By integrating markerless AR technology into mobile-based safety induction, this study addresses a critical gap in outdoor safety training research. The findings demonstrate the feasibility and practical potential of immersive AR applications to enhance safety awareness and improve the effectiveness of preparatory training for beginner mountain climbers.
Implementasi YOLOv5 untuk Deteksi Penggunaan Alat Pelindung Diri Pada Operator IPAL di Industri Farmasi  Yoga Dwi Anggoro Moekti; Rohman Dijaya; Suhendro Busono; Arif Senja Fitriani
TeIKa Vol 16 No 1 (2026): Jurnal TeIKa
Publisher : Fakultas Teknologi Informasi - Universitas Advent Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36342/ztb8ar22

Abstract

Keselamatan dan kesehatan kerja (K3) merupakan aspek penting dalam operasional industri, khususnya pada area Instalasi Pengolahan Air Limbah (IPAL) yang memiliki tingkat risiko tinggi. Salah satu upaya penerapan K3 adalah memastikan kepatuhan penggunaan Alat Pelindung Diri (APD) oleh operator. Namun, pengawasan secara manual memiliki keterbatasan dari segi efektivitas dan konsistensi. Penelitian ini bertujuan untuk mengembangkan sistem deteksi penggunaan APD secara otomatis menggunakan algoritma You Only Look Once versi 5 (YOLOv5). Metode penelitian meliputi pengumpulan dan pelabelan data, praproses data, pelatihan model, serta pengujian sistem menggunakan citra dan gambar yang diperoleh dari rekaman CCTV. Hasil penelitian menunjukkan bahwa model terbaik diperoleh pada skenario dengan resolusi 416, batch size 16 dan 120 epoch, dengan nilai mAP sebesar 89.02%. Sistem mampu mendeteksi objek APD seperti helm dan sepatu keselamatan dengan akurasi tinggi, namun mengalami penurunan performa pada objek berukuran kecil seperti masker dan sarung tangan, terutama pada kondisi pencahayaan rendah dan oklusi. Secara keseluruhan, sistem yang dikembangkan berpotensi mendukung pengawasan penggunaan APD secara real-time di lingkungan IPAL.
Web-based Population Information System (Case Study of Ketapang Village Hall Office) Irene Elvariani Dewanti; Rohman Dijaya; Nuril Lutvi Azizah; Ade Eviyanti
SAGA: Journal of Technology and Information System Vol. 3 No. 1 (2025): February 2025
Publisher : CV. Media Digital Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58905/saga.v3i1.477

Abstract

The development of information technology has brought significant changes in various aspects of life, including in the management of population data at the village level. Conventional population information systems that still use manual methods often have various problems such as data inconsistency, difficulty in finding information, and slow administrative service processes. Therefore, this research aims to develop a web-based village population information system that can overcome these problems. This web-based population information system is designed using a waterfall system development approach. Data collection methods were conducted through interviews, observations, and documentation studies. The system was built using PHP programming language and MySQL database. The results showed that this web-based population information system is able to present population data accurately, quickly, and easily accessible by the community and village officials. With this web-based population information system, it is expected to improve the efficiency and effectiveness of population data management at the village level, as well as provide convenience for the community in accessing information and obtaining population administration services.
ANALISIS KINERJA KEUANGAN PERUSAHAAN DITINJAU DARI RENTABILITAS, LIKUIDITAS, SOLVABILITAS (STUDI PADA PT. MISWAK UTAMA) Indriani Rafika Sari; Ufi Rumefi; Rohman Dijaya; Ersa Zabrina; Akhmad Tajuddin
JAD : Jurnal Riset Akuntansi & Keuangan Dewantara Vol. 7 No. 2 (2024): Juli (2024) - Desember (2024)
Publisher : STIE PGRI Dewantara Jombang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26533/jad.v7i2.1527

Abstract

The purpose of this study is to analyse the financial performance of the company in terms of profitability, liquidity, and solvency in 2015-2019 at PT Miswak Utama. The data analysis method in this study is quantitative descriptive. PT Miswak Utama's financial statements were analysed in terms of profitability, liquidity, and solvency, which were then compared with industry standard ratios. The results showed that the profitability ratio, calculated from the gross profit margin and net profit margin, indicated that PT Miswak Utama was in poor condition, except in 2015, when it had a fairly high net profit. Furthermore, the liquidity ratio calculated from the current ratio and quick ratio also showed that PT Miswak Utama was in a poor condition because it was unable to pay its current liabilities. The solvency ratio calculated from the debt to asset ratio and debt to equity ratio also showed that PT Miswak Utama was in a poor condition because it was unable to guarantee the company's debts, which would result in a lack of trust from creditors.
Aplikasi WebAR Berbasis Marker untuk Visualisasi Tengkorak Manusia Tiga Dimensi pada Pembelajaran IPA Muhammad Azrul Wicaksono; Rohman Dijaya
Jurnal Informatika Terpadu Vol 12 No 1 (2026): Maret, 2026
Publisher : LPPM STT Terpadu Nurul Fikri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54914/jit.v12i1.2761

Abstract

Science learning requires visual media capable of explaining abstract concepts clearly, particularly in the topic of the human skeletal system. One subject that students often find difficult to understand is the structure of the human skull due to its level of complexity. This study aims to develop an Augmented Reality (AR)-based science learning medium using marker-based AR integrated into an interactive Flipbook utilizing WebAR technology. The research method employed is Research and Development (R&D) with the ADDIE development model, which encompasses the stages of analysis, design, development, implementation, and evaluation. The results indicate that the developed learning medium is capable of displaying interactive three-dimensional visualizations of the human skull through a web browser without requiring the installation of any additional applications. Functional testing and feasibility evaluation demonstrate that this learning medium is suitable for use, with a feasibility percentage of 75.94%, indicating that the medium received a positive response from users. Therefore, this WebAR-based learning medium can serve as an innovative alternative to support conceptual understanding and enhance students' learning interest in science education.
Sistem Informasi Pendaftaran Member Baru pada Gym Cemerlang Berbasis Web dengan Metode Waterfall Muhammad Izza Arya Dwipa; Cindy Taurusta; Yunianita Rahmawati; Rohman Dijaya
Jurasik (Jurnal Riset Sistem Informasi dan Teknik Informatika) Vol 11, No 2 (2026): Edisi Agustus
Publisher : STIKOM Tunas Bangsa Pematangsiantar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30645/jurasik.v11i2.973

Abstract

This study proposes a web-based information system for new member registration at Gym Cemerlang, developed to address the manual registration process that causes long queues, data recording errors, and inefficient membership data management. The system was developed using the Waterfall method, consisting of requirements identification, system design, implementation, testing, and maintenance. Data were collected through observation, interviews with the gym owner, and literature study. The system was built using ReactJS for the front-end, Express JS for the back-end, and PostgreSQL as the database, and was modeled using Use Case Diagrams and Data Flow Diagrams (DFD). The system involves two main actors: users (prospective members), who can view membership packages, register online, make payments, and check registration status; and administrators, who manage member data, membership packages, and registration confirmation through Create, Read, Update, and Delete (CRUD) operations. Functional testing was carried out using black-box testing, while user acceptance was planned to be measured using a Likert-scale questionnaire. The result of this research is a web-based registration system design that is expected to reduce queuing time, minimize recording errors, and provide real-time, self-service registration for prospective members, thereby improving the efficiency and quality of membership services at Gym Cemerlang.
Rancang Bangun Aplikasi Notifikasi Dan Geolocation Pada Pedagang Keliling Terdekat Berbasis Android Rina Safitri; Hamzah Setiawan; Novia Ariyanti; Rohman Dijaya
Decode: Jurnal Pendidikan Teknologi Informasi Vol. 4 No. 1: MARET 2024
Publisher : Program Studi Pendidikan Teknologi Infromasi UMK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51454/decode.v4i1.173

Abstract

Maraknya pedagang keliling di Indonesia menjadi suatu tantangan tersendiri bagi masyarakat dalam mencari pedagang keliling terdekat. Oleh karena itu, dibutuhkan suatu aplikasi yang dapat membantu calon pembeli dalam mencari pedagang keliling terdekat dengan mudah dan efisien. Rancang Bangun Aplikasi Notifikasi dan Geolocation pada Pedagang Keliling Terdekat Berbasis Android merupakan aplikasi yang dirancang dengan tujuan untuk memudahkan calon pembeli dalam mencari pedagang keliling di sekitar lokasi mereka berada. Aplikasi ini memanfaatkan fitur geolocation pada perangkat Android dan menggunakan algoritma Haversine untuk menghitung jarak antara lokasi calon pembeli dengan lokasi pedagang keliling. Selain itu, aplikasi ini juga dilengkapi dengan fitur notifikasi yang akan memberikan informasi kepada calon pembeli jika ada pedagang keliling terdekat yang sedang berada di sekitar lokasi mereka. Aplikasi ini dirancang dengan menggunakan metode penelitian Software Development Life Cycle (SDLC) dengan model pengembangan Waterfall yang terdiri dari 5 tahapan yaitu analisis kebutuhan, desain sistem, perancangan sistem, pengujian sistem, serta tahapan implementasi dan evaluasi sistem. Perancangan sistem menggunakan bahasa pemrograman Kotlin serta menggunakan Android Studio sebagai platform pengembangan. Hasil pengujian blackbox menunjukkan bahwa aplikasi dapat berjalan dengan baik dan memberikan hasil yang akurat.
Co-Authors Abdillah, David Fahmi Achmad Alfi Fakhresi Achmad Ariq Rivaldhi Ade Eviyanti Agung Novianto, Putra Agung Wijaya Aini, Della Swastika Nur Akhmad Tajuddin Ali Akbar Amalia Rossa Annjani Ambarwati , Rita Andika Aliviameita Angga Wibawa Saputra Angga Ardhian Ramadhan Arif Senja Fitrani Arif Senja Fitriani Azmuri Wahyu Azinar Azmuri Wahyu Azinar Bagus Dwi Yulianto Bakta , Nabila Ayu Budi, Bagus Setyo Cholifah Cindy Taurusta Darlis Herumurti Deni Sutaji Dian Delta Dimas Ayu Putri Risky Nofa Dina Trikumalasari Diva Putri Anasya Eka Fatra Arif Hidayatullah Eka nugraha saktifany wicaksana Eko Agus Suprayitno Erfina, Idha Maharani Eriec Priyono Ersa Zabrina Evi Rinata Fatona Kholifatun Nisa' Febrian Endi Pranyoto Fiolitta , Anggi Firdaus Margo Utomo Firman Milani Gracia, Aisyah Silvia Hamzah Setiawan Harunur Rosyid Hatuwe, Razif Zulvikar Hibatullah Putra, Dimas Radito Hindarto Idha Maharani Erfina Ika Ratna Indra Astutik Ilham Basri K Ilham Wahyu Firmansyah Indri Arianti Wibowo Indriani Rafika Sari Irene Elvariani Dewanti Irwan Alnarus Kautsar Irwan Alnarus Kautsar Irwan Alnarus Kautsar Julianata, Akhsan Maula Khotiah, Titiek Kusuma, Selvia Ferdiana lambang , Yanuangga Galahart Livia Nur Azzah M Aldi Setiawan M. Ryas Hakim Metatia Intan Mauliana Miftahul Mushlih Mochamad Alfan Rosid Muchamad Firmansyah Tubira Mudji Astuti Muhammad Azrul Wicaksono Muhammad Danil Haqewi Muhammad Eko Mujahidin Muhammad Fachruddin, Muhammad Muhammad Iqbal Al Mulki Muhammad Izza Arya Dwipa Nanik Suciati Nanik Suciati Ningsih, Maudina Fatika Novia Ariyanti Nurfirmansyah, Agustin Nuril Lutvi Azizah Nurwijayanti Octavia, Elga Prastiyanti, Erika Priyo Wahyu Setiyo Aji Pudjianto, Hendrawan Puspitasari Puspitasari Putra, Riski Firmansyah Wilis Putri, Adelia Kharisma Qilmia Fanani Rahmawati, Indah Agustinah Ratri Enggar Pawening Retna Fetty Idamayanti Rhomadiniyah, Dewi Rina Safitri Rita Ambarwati Rivaldhi, Achmad Ariq Rizky Bagas Prasetyo, Achmad Rizky Bayu Wardana Sahera, Charisa Nur Sandi Wahyu Maulana Sari, Fila Juwita Shovi Firdaus Siska Aprilia ST, M. Atho'illah Suhendro Busono Sumarno Sumarno Suprianto Suroiyah, Lailatul Surur, Moch Shobachus Syahgita, Mico Hari Tasya Gusti Amalia Uce Indahyanti Uce Indahyanti Uce Indahyanti Ufi Rumefi Umami, Nur Reza Umi Khoirun Nisak Wahyu Nur Islamudin Wahyu Setia Bintara Wardana, Rizky Bayu Wardani, Dwi Sukma Yoga Dwi Anggoro Moekti Yulian Findawati Yunianita Rahmawati Yunianita Rahmwati Yunita Setiyaningsih Yusuf Raharja Yusuf, Farid Maulana Yuwanto, Mahmud Adi