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All Journal Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Techno.Com: Jurnal Teknologi Informasi Elkom: Jurnal Elektronika dan Komputer Seminar Nasional Informatika (SEMNASIF) WARTA Emitor: Jurnal Teknik Elektro Khazanah Informatika: Jurnal Ilmu Komputer dan Informatika Computatio : Journal of Computer Science and Information Systems Compiler Jurnal Teknik Informatika (JUTIF) JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Emerging Information Science and Technology Proceeding ISETH (International Summit on Science, Technology, and Humanity) Jurnal Bakti Nusa Prosiding University Research Colloquium Mestro Shahih : journal of islamicate multidisciplinary The Indonesian Journal of Computer Science ABDIMASTEK Computing and Information System Journal Dedikasi Nusantara
Aris Rakhmadi
Universitas Muhammadiyah Surakarta
Religion Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Other

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LEVERAGING THE SAW METHOD IN A DECISION SUPPORT SYSTEM TO IMPROVE ELDERLY NUTRITION AT LAWEYAN HOME FOR THE ELDERLY Rakhmadi, Aris; anshori, Anshori
Jurnal Bakti Nusa Vol. 6 No. 2 (2025): JURNAL BAKTI NUSA
Publisher : Jurusan Teknik Elektro Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/baktinusa.v6i2.144

Abstract

  This community engagement initiative addresses nutritional challenges among elderly residents at the Laweyan Home for the Elderly in Surakarta by developing a Decision Support System (DSS) utilizing the Simple Additive Weighting (SAW) method. The DSS was designed to assist caregivers in making informed meal selections based on individualized health profiles, including demographic data, medical conditions, and allergy history. Implemented as a web-based application, the system enables users to input resident data and receive prioritized dietary recommendations aligned with established nutritional criteria. The SAW algorithm processes multi-criteria input to rank food alternatives effectively. Empirical validation using real-world data demonstrated the system's capacity to generate accurate, personalized suggestions that support improved nutritional outcomes. Additionally, caregiver training and participatory implementation ensured practical usability and sustainability. This project highlights the potential of integrating algorithmic decision-making with community-based care to enhance the quality of elderly nutrition management in institutional settings.
VGG16-Based Feature Extraction for Arabic Alphabet Sign Language Classification to Support Qur'anic Tadarus Accessibility Rakhmadi, Aris; Yudhana, Anton; Sunardi, Sunardi
Jurnal Teknik Informatika (Jutif) Vol. 6 No. 4 (2025): JUTIF Volume 6, Number 4, Agustus 2025
Publisher : Informatika, Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jutif.2025.6.4.4953

Abstract

This study addresses the limited availability of automated recognition systems for Arabic Alphabet Sign Language (ArSL), particularly in facilitating Qur’anic Tadarus for the deaf and hard-of-hearing community. While research on American and Indonesian sign languages has advanced significantly, ArSL studies, especially for static alphabet gestures, remain underrepresented. The aim of this research is to develop an accurate and efficient ArSL classifier using the VGG16 convolutional neural network with transfer learning. The study employs the publicly available RGB Arabic Alphabets Sign Language Dataset, comprising 7,856 annotated images across 31 Hijaiyah letters, collected under varied backgrounds and lighting conditions. The proposed model integrates pretrained ImageNet weights with a customized classification head, trained through a two-stage fine-tuning process with data augmentation. The model achieves 97.07% test accuracy, performing competitively against a ResNet-18 baseline (98.0%) while offering a simpler architecture suitable for resource-constrained deployments. Evaluation using precision, recall, F1-score, and confusion matrix shows consistently high performance, with minor misclassifications among visually similar letters. This work demonstrates a novel application of VGG16-based deep learning for ArSL recognition, contributing to inclusive religious education and accessibility technologies.
A Smart and Budget-Friendly Android Application for Motorcycle Safety and Engine Control System Rakhmadi, Aris; Ihsan Adi, Mahfud; Ary Prasetya, Dedi; Muhammad; Faqih Dzulqarnain, Muhammad
Computatio : Journal of Computer Science and Information Systems Vol. 9 No. 1 (2025): Computatio: Journal of Computer Science and Information Systems
Publisher : Faculty of Information Technology, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/computatio.v9i1.33870

Abstract

Motorcycle theft remains a significant security issue, necessitating an affordable and effective solution. This study presents a cost-effective Android-based motorcycle security and engine control system using Arduino, integrating Bluetooth communication for remote operation. The system enables users to start the engine, activate an alarm, and monitor security conditions via a custom Android application, enhancing both security and convenience. The hardware consists of an Arduino Uno microcontroller, Bluetooth HC-05 module, and a four-channel relay module, allowing secure wireless control. System testing demonstrated stable Bluetooth connectivity up to 10 meters, low power consumption (150 mW for Bluetooth HC-05), and reliable command execution. A key advantage is its low cost, totaling approximately 223,000 IDR (~ USD 15), making it significantly more affordable than conventional GPS-based security systems. Results confirm that the proposed system offers a low-cost yet effective alternative to traditional security methods, providing real-time monitoring, user-friendly operation, and enhanced theft prevention. However, limitations such as Bluetooth range constraints and potential security risks highlight areas for improvement. Future enhancements could include biometric authentication, GPS tracking, and cloud-based monitoring to strengthen security and scalability. By leveraging affordable components and smartphone integration, this study contributes to developing innovative, accessible, and cost-efficient motorcycle security solutions, improving vehicle protection for a wider audience.
A Systematic Implementation of the Waterfall Model in E-Commerce System Development for Small Businesses Rakhmadi, Aris; Iqbal Firdaus, Malvin; Sulistyo Nugroho, Yusuf
Computing and Information System Journal Vol. 1 No. 1 (2025): Technological Innovation for System Automation and Efficiency
Publisher : IndoCompt Publisher

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Abstract

The Waterfall model remains a widely used software development methodology, offering a structured, phase-driven approach to system development. This study applies the Waterfall model in developing a web-based e-commerce system for small businesses, aiming to improve business operations, usability, and system efficiency. The system was implemented for Anisha Klapertart and Cake to address manual sales and inventory management inefficiencies. Black Box Testing confirmed 100% functionality across core modules, including authentication, product management, and order processing. Usability testing using the System Usability Scale (SUS) with 30 respondents resulted in a score of 70.16, categorizing the system as "Good" and "Acceptable". Despite its benefits, challenges include limited adaptability to requirement changes and scalability concerns. Future enhancements will focus on integrating a payment gateway, improving security, and adding customer loyalty programs. These findings demonstrate the practicality of the Waterfall model in structured e-commerce development, offering valuable insights for small businesses transitioning to digital platforms.
Sosialisasi Aplikasi Digital Haji Pintar - Satu Haji dan Kawal Haji untuk Meningkatkan Pemahaman Jamaah KBIHU Ahmad Dahlan Pringsewu Rakhmadi, Aris; Hartono, Susilo; Muchlas; Yudhana, Anton
Dedikasi Nusantara: Jurnal Pengabdian Masyarakat Vol. 1 No. 2 (2025): Transformasi Digital dalam Pelayanan Publik dan Keagamaan
Publisher : IndoCompt Publisher

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Abstract

Sosialisasi aplikasi digital Haji Pintar – Satu Haji dan Kawal Haji dilaksanakan sebagai bentuk pengabdian kepada masyarakat dalam mendukung digitalisasi pembinaan ibadah haji. Kegiatan ini menyasar 46 jamaah KBIHU Ahmad Dahlan Pringsewu dengan pendekatan berbasis video tutorial, distribusi materi digital, dan pendampingan daring. Hasil survei menunjukkan bahwa 97,8% jamaah memiliki kemampuan dasar dalam penggunaan smartphone, dan 73,9% belum pernah berhaji. Video tutorial disebarluaskan melalui platform WhatsApp bimbingan haji dan umrah, dan YouTube. Evaluasi menunjukkan bahwa lebih dari 80% responden merasa aplikasi membantu meningkatkan pemahaman terhadap tata cara ibadah. Fitur video manasik dan simulasi ritual menjadi yang paling sering diakses. Sosialisasi digital terbukti efektif menjangkau jamaah secara fleksibel dan partisipatif, serta berkontribusi dalam memperluas literasi digital keagamaan. Kegiatan ini memberikan model implementasi bimbingan haji berbasis teknologi yang dapat direplikasi di wilayah lain.
A Conceptual Framework for Integrating SUS into ITIL: Enhancing IT Service Management Through Usability Evaluation Rakhmadi, Aris; Rochmadi, Tri; Azis, Abdul; Ayuningtyas, Astika; Sarmini; Wahyusari, Retno
The Indonesian Journal of Computer Science Vol. 14 No. 5 (2025): The Indonesian Journal of Computer Science
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v14i5.4842

Abstract

Effective IT service management must combine operational excellence with seamless user experience in today's digital era. This paper introduces the Deployment and Integration Framework for Assessment (DIFA), a conceptual model that integrates the System Usability Scale (SUS) within the IT Infrastructure Library (ITIL) framework. ITIL offers a structured approach to aligning IT services with business objectives, while SUS provides reliable usability measurements from the user's perspective. By embedding SUS assessments throughout ITIL's lifecycle—spanning service strategy, design, transition, operation, and continual improvement—DIFA enables organizations to evaluate and enhance IT services' usability systematically. This integration bridges the gap between process efficiency and user satisfaction, supporting informed decision-making, improved service adoption, and better alignment with user needs. The findings highlight the strategic value of combining usability evaluation with ITIL's best practices, offering a sustainable and scalable pathway for organizations to deliver IT services that are both technically robust and intuitively user-friendly.
Pengembangan Sistem Perancangan Manajemen Usaha Kecil Menengah Bidang Kuliner dengan Metode Swot Gumawang, Aldino Kemal Adi; Rakhmadi, Aris
Prosiding University Research Colloquium Proceeding of The 7th University Research Colloquium 2018: Bidang Teknik dan Rekayasa
Publisher : Konsorsium Lembaga Penelitian dan Pengabdian kepada Masyarakat Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

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Abstract

Usaha Kecil Menengah (UKM) merupakan sebuah kegiatan ekonomirakyat produktif berskala kecil di bidang industri kelas menengah kebawah. Untuk memulai dan menjalankan industri ini dibutuhkansebuah sistem informasi yang dapat mengungkap serta menganalisisfakta di lapangan untuk membantu perencanaan strategis danmengevaluasi kekuatan (strengths), kelemahan (weaknesses), peluang(opportunities), ancaman (threats) suatu spekulasi industri, analisisSWOT dapat diterapkan dalam menentukan perencanaan usaha.Analisis SWOT secara manual memerlukan waktu yang cukup lamakarena seorang analis SWOT harus berhati-hati dalam menempatkandata faktual yang ada di lapangan kedalam butir-butir SWOT.Aktivitas ini dapat dibantu dengan aplikasi komputer sehingga prosesanalisis SWOT dapat dilakukan dengan cepat. Aplikasi ini dibangundengan bahasa pemrograman PHP dan Javascript dengan teknologiSPA (Single Page Application)
Web-Based Application for Single Elimination Tournament Using Linear Congruential Generator Rakhmadi, Aris; Nugroho, N
Proceeding ISETH (International Summit on Science, Technology, and Humanity) 2016: Proceeding ISETH (International Conference on Science, Technology, and Humanity)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/iseth.2390

Abstract

Sport develops in various branches through various tournaments and is generally organized in the drawing mechanism. The process of drawing is to determine the opponent for each participant. The purpose of this study was to facilitate the organizing committee to manage the data participants and to draw the single elimination diagram match. Other purposes were to facilitate participants to gather information and to register the information via online system. Analysis of requirement formulated the needs of the system. The result of the analysis determined the concept of admin and user use case. The admin has some privileges in the selection and seed priorities of the participants. Subsequently, the system drew and randomised the scheme chart based on the seed category. This research had produced a web-based drawing application which was useful to support each single elimination tournament including of information, registration, and drawing process.
Empowering Teachers in Muhammadiyah Boarding School Yogyakarta toward Safer Digital Behavior through Smartphone Security Education Rakhmadi, Aris; Wintolo, Hero; Putri Silmina, Esi; Soyusiawaty, Dewi; Sunardi; Fadlil, Abdul
JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Vol. 6 No. 4 (2025)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/jurpikat.v6i4.2843

Abstract

Abstract: This community-service program was implemented through the Program Pemberdayaan Umat (PRODAMAT) of Universitas Ahmad Dahlan with the aim of enhancing digital literacy and cybersecurity awareness among teachers at Muhammadiyah Boarding School (MBS) Yogyakarta. The activity focused on smartphone account security education through practical steps such as password management, two-factor authentication (2FA), and phishing awareness. A participatory approach was applied through training involving 15 teachers and staff, combining interactive discussions, demonstrations, and pretest–posttest evaluation. The results showed an increase in the average knowledge score from 4.63 to 4.90, digital awareness from 4.05 to 4.45, and intention and safe digital behavior from 4.35 to 4.73. These improvements reflect positive changes in participants’ understanding, awareness, and behavior toward digital security. The program highlights the importance of integrating technological skills with ethical and religious values to promote sustainable digital empowerment in Islamic educational environments.
Co-Authors Abdul Azis Abdul Fadlil Ady Purna Kurniawan Agus Triyono Aji, Doni Kurnia Aldino Kemal Adi Gumawang Anshori Anshori, Anshori Anton Yudhana Ariyanto, Ragil Ary Prasetya, Dedi Astika AyuningTyas, Astika Dewi Soyusiawaty Dienulloh Ulil Abshar, Muhammad Fadlillah, Umi Faqih Dzulqarnain, Muhammad Fatah Yasin Gumawang, Aldino Kemal Adi Hartono, Susilo Ihsan Adi, Mahfud Ihsan Cahyo Utomo Iqbal Firdaus, Malvin Lukito Edi Nugroho Muchlas Muhammad Muhammad Nashif, Haidar Muhammad Syukri Novilia Purwita Putri Nugroho, N Nurgiyatna Puspitasari, Yuliana Putri Silmina, Esi Putri, Novilia Purwita Qanza, Aiza Fravy Ragil Ariyanto Rahmawati, Nila Dwi Ratnasari Nur Rohmah Rochmadi, Tri Rochmijatun, Siti Safiq Rosad Sarmini Sunardi Sunardi Sunardi Ulva Erida Nur Rochmah Wahyusari, Retno Wintolo, Hero Wulandari, Novita Desi Yusrifa, Khumaila Masfarina Yusuf Sulistyo Nugroho