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All Journal Bulletin of Computer Science Research Instal : Jurnal Komputer Jurnal Nasional Teknologi Komputer Jurnal Pendidikan Teknik dan Vokasional Jurnal Komputer Teknologi Informasi Sistem Komputer (JUKTISI)
Hafni
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Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Engineering Environmental Science Mechanical Engineering Transportation Other

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Perancangan Sistem Prediksi Stok Barang Menggunakan Metode Single Moving Average (SMA) Gudang Logistik PT. PLN UP 3 Lubuk Pakam Zacky Hilman Siregar; Muhammad Zen; Hafni
Jurnal Komputer Teknologi Informasi Sistem Komputer (JUKTISI) Vol. 4 No. 3 (2026): Februari 2026
Publisher : LKP KARYA PRIMA KURSUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62712/juktisi.v4i3.882

Abstract

Pengelolaan stok bahan baku yang efektif berperan penting dalam menunjang efisiensi operasional perusahaan konfeksi. Ketidaksesuaian antara tingkat permintaan dan ketersediaan persediaan berpotensi menimbulkan kondisi kekurangan maupun kelebihan stok, yang pada akhirnya memengaruhi biaya penyimpanan serta kelancaran proses produksi. Penelitian ini bertujuan untuk merancang dan menganalisis penerapan metode prediksi Single Moving Average (SMA) dalam rangka mengoptimalkan manajemen stok bahan baku. Metodologi penelitian meliputi pengumpulan data historis permintaan bahan baku selama periode 11 bulan pada perusahaan konfeksi, implementasi metode SMA, serta pengujian tingkat akurasi menggunakan indikator Mean Absolute Error (MAE) dan Mean Absolute Percentage Error (MAPE).  Hasil pengujian menunjukkan bahwa metode SMA mampu memberikan tingkat prediksi yang relatif baik pada produk dengan pola permintaan yang stabil, seperti kategori MCB, dengan nilai MAE sebesar 4,79 unit dan MAPE sebesar 14,69%. Sebaliknya, pada produk dengan tingkat fluktuasi permintaan yang tinggi, seperti Cable PWR, performa prediksi mengalami penurunan yang ditunjukkan oleh nilai MAPE hingga 37%. Kontribusi utama penelitian ini terletak pada analisis keterbatasan metode SMA dalam menangani data permintaan yang tidak stabil serta rekomendasi penggunaan metode prediksi yang lebih adaptif, seperti Weighted Moving Average (WMA) atau Long Short-Term Memory (LSTM). Temuan penelitian ini diharapkan dapat menjadi acuan dalam pengembangan solusi berbasis sistem informasi untuk meningkatkan efisiensi pengelolaan stok bahan baku pada industri konfeksi skala kecil dan menengah, sekaligus membuka peluang pengembangan sistem prediksi yang lebih akurat di masa mendatang
Perancangan Smart Box Penerima Paket Berbasis Internet of Things Menggunakan NodeMCU ESP8266 dan ESP32-CAM dengan Optical Character Recognition Raey Anugrah Perdana Sembiring; Hafni; Muhammad Zen
Jurnal Nasional Teknologi Komputer Vol 6 No 2 (2026): April 2026
Publisher : CV. Hawari

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Abstract

Peningkatan aktivitas pengiriman paket seiring berkembangnya layanan e-commerce atau toko online membutuhkan sistem penerimaan paket yang lebih aman dan terstruktur. Dalam praktiknya, proses penerimaan paket masih sebagian besar dilakukan secara manual, sehingga ada risiko kehilangan, kerusakan, serta tidak tersedianya dokumentasi penerimaan paket. Tujuan dari penelitian ini adalah untuk merancang smartbox penerima paket berbasis Internet of Things (IoT) yang mampu menerima dan mendokumentasikan paket secara otomatis. Sistem smartbox ini menggunakan NodeMCU ESP8266 sebagai pengendali utama sekaligus media komunikasi data, serta ESP32-CAM sebagai perangkat pengambil citra untuk mendokumentasikan paket dan membaca informasi tanda terima seperti nomor resi atau kode QR menggunakan metode Optical Character Recognition (OCR). Smartbox dilengkapi dengan sensor ultrasonik untuk mendeteksi paket yang masuk dan mekanisme penguncian menggunakan modul servo sebagai pengaman. Setiap paket yang diterima akan direkam dalam bentuk gambar, informasi yang diidentifikasi, dan dikirim ke server berbasis web secara real-time sehingga dapat dipantau melalui perangkat pengguna. Dengan sistem ini, proses penerimaan paket menjadi lebih aman, terdokumentasi, dan dapat diakses tanpa kehadiran penerima secara langsung.
SISTEM LAMPU PARKIRAN OTOMATIS BERBASIS ARDUINO UNO DAN SENSOR LDR PADA PARKIRAN GEREJA Andreas Rofrans Sadewa Sitanggang; Hafni; Muhammad Zen
Jurnal Nasional Teknologi Komputer Vol 6 No 2 (2026): April 2026
Publisher : CV. Hawari

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Abstract

Efficient use of electrical energy is a crucial aspect in the management of public facilities, including houses of worship. In church parking areas, manual lighting systems often lead to electricity waste. This research aims to implement lighting automation technology by utilizing an Arduino Uno microcontroller and a Light Dependent Resistor (LDR) sensor. Through a prototype design approach, this system was developed to detect the level of light intensity in the surrounding environment in real-time. Test results show the effectiveness of the system in controlling the lights: the device will activate the lights when the light intensity is above 850 lux (dim/dark conditions) and deactivate them when below 849 lux (bright conditions). The implementation of this innovation is expected to reduce electricity operational costs while increasing safety factors in the church environment.
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

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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

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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 Adra, Ammar Najmi 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 Rezki, Ahmad Sembiring, Mutiara br Syahputra, Zulfahmi Zacky Hilman Siregar Zen, Muhammad