Article Per Year (5 Year)
p-Index From 2021 - 2026
2.248
P-Index
This Author published in this journals
All Journal Bulletin of Computer Science Research Instal : Jurnal Komputer Jurnal Nasional Teknologi Komputer Jurnal Pendidikan Teknik dan Vokasional
Hafni
Unknown Affiliation
Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering Environmental Science Mechanical Engineering Transportation Other

Published : 14 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 14 Documents
Search

 1   2 
Design of Patient Visit Recording Application Using the SDLC Method at Delia Hospital Based on Website Sembiring, Mutiara br; Muhammad Zen; Hafni
Bahasa Indonesia Vol 18 No 02 (2026): Instal : Jurnal Komputer
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/jurnalinstall.v18i02.495

Abstract

The advancement of information technology has driven digital transformation across various sectors, including healthcare services in hospitals. One of the common issues faced is the management of patient data and visit records, which are still handled manually, resulting in slow data retrieval, higher risk of errors, and inefficiency. This study aims to design and develop a web-based patient visit recording application to improve the effectiveness of data management at Delia General Hospital. The system development method used in this study is the Software Development Life Cycle (SDLC), which consists of analysis, design, implementation, and testing stages. The developed system includes key features such as management of patient data, doctors, medications, polyclinics, laboratories, medical procedures, visits, medical records, and user management. The application is built using web-based technology, allowing easy access through computer networks. The results of this study indicate that the developed system is capable of managing data in an integrated manner, accelerating information retrieval, and minimizing recording errors. In addition, the system provides convenience for administrators in managing data through available create, read, update, and delete (CRUD) features. Therefore, this application can support improved efficiency and quality of administrative services in hospitals.
Design of a Web-Based Employee Performance Appraisal System at PT PLN Icon Plus Medan Using the Design Thinking Method Putri Maria Angelina; Hafni; Muhammad Zen
Bahasa Indonesia Vol 18 No 02 (2026): Instal : Jurnal Komputer
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/jurnalinstall.v18i02.502

Abstract

Employee performance appraisal is an important aspect of human resource management that plays a role in improving organizational productivity and effectiveness. PT PLN Icon Plus Medan, as a company engaged in information and communication technology, faces challenges in its employee performance appraisal system, which is still carried out manually and subjectively. This study aims to design and develop a structured web-based employee performance appraisal system using the Analytical Hierarchy Process (AHP) method, the Flutter framework, and Pocketbase as a backend solution. This system is designed to produce more objective, transparent, and accountable assessments through consistent weighted calculations. The results of the study show that by integrating AHP, the system is able to convert subjective assessments into valid numerical data, while the use of Flutter enables the development of a responsive application that is easily accessible to employees and management. Pocketbase provides an efficient backend solution for real-time data management. This system is expected to improve efficiency in the employee performance evaluation process, support more accurate decision-making, and provide a strong foundation for competency development and human resource development policies at PT PLN Icon Plus Medan.
Penerapan Teknologi IOT untuk Monitoring Keamanan Kandang Ayam Broiler Berbasis Sensor Magnetik dan Mikrokontroler ESP 32 CAM Ketria Nursabila; Hafni; Muhammad Zen
Jurnal Nasional Teknologi Komputer Vol 6 No 2 (2026): April 2026
Publisher : CV. Hawari

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The The increase in theft cases along with technological developments demands a more effective security system. By 2025, the broiler chicken coop partner PT. Ciomas Adisatwa experienced a theft case so that an improvement of the security system was needed. This research aims to apply Internet of Things (IoT) technology to monitor the security of broiler chicken coops using magnetic sensors and ESP32-CAM microcontrollers with telegram notifications. The system design is carried out using the waterfall method which includes the stages of needs analysis, design, testing, and implementation. A magnetic sensor is used to detect the movement of the cage door, and then the ESP32-CAM microcontroller processes the signal to activate the alarm and send notifications in real-time via Telegram. The test results show that the system can function properly and is able to improve the safety of the broiler chicken coop.
Perancangan Smart Trolley dengan Fitur Penghitung Barang Menggunakan Sensor E18-D80nk Berbasis Arduino Uno M Naufal Mubarak Lubis; Hafni; Muhammad Zen
Jurnal Nasional Teknologi Komputer Vol 6 No 2 (2026): April 2026
Publisher : CV. Hawari

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The rapid development of the retail industry requires technological innovation to improve efficiency and enhance customer convenience during shopping activities. One common issue in supermarkets is that customers often forget the number of items placed in their shopping carts, leading to time inefficiency and potential disruption of shopping flow. This study aims to design and develop a Smart Trolley system based on Arduino Uno using the E18-D80NK distance sensor to automatically count the number of items. The system operates by detecting objects through infrared signals, processing the data via a microcontroller, and displaying the item count in real time on a 16x2 LCD screen. The device is equipped with additional features, including a stop-count button, item subtraction button, and reset function to enhance operational flexibility. Testing results indicate that the system is capable of accurately counting items and operates under stable voltage conditions according to component specifications. The proposed Smart Trolley is expected to assist customers in monitoring their shopping items accurately, improve time efficiency, and serve as an initial step toward simple technological implementation in the digital transformation of the retail sector.
Co-Authors Akhyar Lubis Ananda, M. Dea Putra Andhika, Adi Andreas Rofrans Sadewa Sitanggang Ayu Asyva Irfita Eka Putra Fawzan, Rizki Gulo, Yaferman Hendry . Immanuel, Brenden F Irwan KarnovaYanel Ketria Nursabila M Naufal Mubarak Lubis Martin Gunawan Manurung Muhammad Muttaqin Muhammad Muttaqin Muhammad Rizki Muhammad Zen, Muhammad Nurzal, Nurzal Putri Maria Angelina Raey Anugrah Perdana Sembiring Reinaldo, Reinaldo Sembiring, Mutiara br Zen, Muhammad