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All Journal bit-Tech JATI (Jurnal Mahasiswa Teknik Informatika) Jurnal Ilmu Komputer dan Sistem Informasi Prosiding Seminar Nasional Indonesia
Abdul Rezha Efrat Najaf
Universitas Pembangunan Nasional “Veteran” Jawa Timur
Humanities Computer Science & IT Library & Information Science Social Sciences Other

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Information System Development for Web-Based Creative Services E-Commerce Using Rapid Application Development Method Bagus Dwi Putra Adiyono; Abdul Rezha Efrat Najaf; Reisa Permatasari
bit-Tech Vol. 8 No. 1 (2025): bit-Tech
Publisher : Komunitas Dosen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32877/bt.v8i1.2615

Abstract

This study aims to design and develop a web-based e-commerce information system for creative services at Cahaya Kreativ using the Rapid Application Development (RAD) method, addressing the company's lack of an integrated digital platform for managing service orders, portfolios, consultations, and online payments. The RAD method was chosen due to its emphasis on speed, prototyping, and close user collaboration—making it more suitable than traditional methods like Waterfall for projects requiring rapid development and ongoing user input in a dynamic service environment. The system was built using React.js for the frontend, Express.js for the backend, PostgreSQL as the database, Tailwind CSS for UI design, and Midtrans integration as a payment gateway. The development process included two iterations covering requirement analysis, system design (use case diagram, sequence diagram, class diagram, ERD), implementation, and testing through Blackbox Testing and User Acceptance Testing (UAT). Results indicate that the system operates according to specifications and has received positive user feedback. It is expected to enhance Cahaya Kreativ’s operational efficiency, expand market reach, and improve the digital experience for customers ordering creative services online, while also supporting streamlined business processes, data consistency, and increased user engagement through responsive and interactive features. Stakeholder involvement throughout the development ensured the system closely matched real business requirements, resulting in a comprehensive digital solution that enhances customer satisfaction and operational performance through technology-driven innovation.
SISTEM INFORMASI PENCATATAN METER AIR BERBASIS WEB MENGGUNAKAN METODE WATERFALL Miftahur Rohman; Dhian Satria Yudha Kartika; Abdul Rezha Efrat Najaf
JATI (Jurnal Mahasiswa Teknik Informatika) Vol. 9 No. 1 (2025): JATI Vol. 9 No. 1
Publisher : Institut Teknologi Nasional Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/jati.v9i1.12168

Abstract

Penelitian yang telah dilakukan di Kelompok Pengelola Sistem Penyediaan Air Minum Tirta Sari Munggugebang bertujuan untuk membuat sistem informasi pencatatan meter air agar dapat mempermudah pihak pengurus dalam memberikan pelayanan kepada pelanggan. Permasalahan yang dihadapi adalah proses pendaftaran pelanggan baru yang mengharuskan calon pelanggan untuk menemui pihak pengurus, pencatatan tagihan yang masih menggunakan spreadsheet untuk petugas sedangkan untuk pelanggan masih manual, pembayaran tagihan hanya secara tunai, pemberitahuan informasi terbaru hanya melalui mulut ke mulut, serta pembuatan laporan tahunan yang masih dilakukan secara manual. Di dalam penelitian ini, metode untuk pengumpulan data menggunakan studi literatur dan wawancara. Metode Waterfall digunakan sebagai metode pengembangan yang memanfaatkan aplikasi Visual Studio Code untuk mempermudah dalam perancangan sistem. Metode ini menghasilkan sistem pencatatan meter air yang menjadikannya efisien dalam pelayanan kepada pelanggan, dapat diakses oleh semua pihak pengurus dan pelanggan, dan memudahkan pengurus dalam membuat laporan tahunan.
PERANCANGAN WEBSITE PENDUKUNG KEPUTUSAN PENGURUS TERBAIK UKKI UPN JATIM MENGGUNAKAN MODEL WATERFALL Nesvia Nissa Artanti; Abdul Rezha Efrat Najaf; Tri Luhur Indayanti Sugata
Prosiding Seminar Nasional Indonesia Vol. 3 No. 3 (2026): Prosiding Seminar Nasional Indonesia
Publisher : CV. Adiba Aisha Amira

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Abstract

UKKI UPN Veteran Jawa Timur requires an objective and transparent mechanism to determine the best management board members in each organizational period. The evaluation process previously relied on manual calculations using spreadsheets, which was considered ineffective, difficult to interpret, and prone to human error and subjectivity. This study aims to design and develop a web-based Decision Support System (DSS) to assist in selecting the best management board members in a systematic and accurate manner. The research adopts a qualitative approach to identify system requirements through interviews with the general chairman, general secretary, and several relevant stakeholders. System development is conducted using the Waterfall model, which consists of requirements analysis, system design, implementation, testing, deployment, and maintenance stages. The Decision Support System applies the Analytical Hierarchy Process (AHP) to determine criteria weights and the Weighted Product (WP) method to rank the alternatives. The results show that the developed website is capable of managing member data, evaluation criteria, assessment scores, and organizational periods, as well as presenting ranking results in real time. The system enhances efficiency, accuracy, and transparency in determining the best management board members at UKKI UPN Veteran Jawa Timur.
Analisis Sentimen Berbasis Aspek pada Ulasan Aplikasi JConnect Mobile Menggunakan IndoBERT dan mBERT Nadin Isna Monica; Abdul Rezha Efrat Najaf; Nambi Sembilu
Jurnal Ilmu Komputer dan Sistem Informasi Vol. 5 No. 3 (2026): September 2026
Publisher : LKP Unity Academy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70340/jirsi.v5i3.512

Abstract

JConnect Mobile is a mobile banking application developed by Bank Jatim that provides various digital banking transaction services. Although the number of users has continued to increase, the application still receives numerous complaints regarding its interface, features and performance, and service quality, as reflected in user reviews and its relatively low application rating. This study aims to compare the performance of the IndoBERT and mBERT models for aspect-based sentiment classification of JConnect Mobile user reviews. The dataset consists of 4,344 user reviews collected from Google Play Store and App Store between 2021 and 2025. The research methodology includes data collection, data labeling, preprocessing, feature extraction, modeling, and evaluation. The experiments were conducted using 5-fold cross-validation with 24 experimental scenarios involving combinations of hyperparameters, including 5 and 10 epochs, dropout rates of 0.2, 0.4, and 0.6, and batch sizes of 16 and 32. The results of the 5-fold cross-validation show that IndoBERT achieved the best performance, with mean F1-scores of 0.86 for the interface aspect, 0.83 for the features and performance aspect, and 0.74 for the service aspect. Based on these results, IndoBERT was selected as the best-performing model because it consistently outperformed mBERT across all aspects. Evaluation on the test dataset further demonstrated that the best-performing model achieved F1-scores of 0.80 for the interface aspect, 0.83 for the features and performance aspect, and 0.81 for the service aspect.
Co-Authors Bagus Dwi Putra Adiyono Dhian Satria Yudha Kartika Miftahur Rohman Nadin Isna Monica Nambi Sembilu Nesvia Nissa Artanti Reisa Permatasari Tri Luhur Indayanti Sugata