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All Journal Medicina E-Jurnal Medika Udayana Jurnal Pendidikan Kewarganegaraan Undiksha Sistemasi: Jurnal Sistem Informasi JURNAL TEKNOLOGI DAN OPEN SOURCE JURNAL PENDIDIKAN TAMBUSAI JURTEKSI JOURNAL OF SCIENCE AND SOCIAL RESEARCH Al-Hikmah: Jurnal Agama dan Ilmu Pengetahuan Majalah Patologi Indonesia Journal I La Galigo : Public Administration Journal Bali Dermatology and Venereology Journal Babali Nursing Research POLITICA: Jurnal Hukum Tata Negara dan Politik Islam Jutsi: Jurnal Teknologi dan Sistem Informasi J-Com (Journal of Computer) Collegium Studiosum Journal TAMIKA: Jurnal Tugas Akhir Manajemen Informatika & Komputerisasi Akuntansi
Herman Saputra
Bagian/SMF Patologi Anatomi, Fakultas Kedokteran Universitas Udayana/ Rumah Sakit Umum Pusat Sanglah Denpasar Bali
Religion Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Pemanfaatan K-Means Untuk Meningkatkan Penjualan (Studi Kasus: Alya Collection) Safitri, Windi Aulia; Saputra, Herman; Syafnur, Afdhal
J-Com (Journal of Computer) Vol. 5 No. 3 (2025): NOVEMBER 2025
Publisher : STMIK Royal Kisaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33330/j-com.v5i3.4231

Abstract

Abstract: In a competitive digital era, business owners such as Alya Collection face challenges in determining the right fashion products to offer to consumers. Relying on intuition without data support often results in inaccurate and potentially detrimental decisions. This study aims to assist the sales decision-making process by applying a data mining method using the K-Means Clustering algorithm. This method was used to group sales data from February 2024 to January 2025 into three categories: best-selling, least-selling, and non-selling products. The study was conducted using a quantitative approach, through sales data collection and direct interviews with store owners. The system was built using the PHP programming language and MySQL database, and designed with tools such as UML, DFD, and ERD. The results of this clustering system are expected to provide strategic information useful for Alya Collection in planning stock, promotions, and product development, thereby increasing sales effectively and efficiently. Keywords: data mining; k-means; sales; alya collection; information system Abstrak: Dalam era digital yang kompetitif, pemilik usaha seperti Alya Collection menghadapi tantangan dalam menentukan produk fashion yang tepat untuk ditawarkan kepada konsumen. Ketergantungan pada intuisi tanpa dukungan data seringkali mengakibatkan keputusan yang kurang akurat dan berisiko merugikan. Penelitian ini bertujuan untuk membantu proses pengambilan keputusan penjualan dengan menerapkan metode data mining menggunakan algoritma K-Means Clustering. Metode ini digunakan untuk mengelompokkan data penjualan dari Februari 2024 hingga Januari 2025 ke dalam tiga kategori: produk terlaris, kurang laris, dan tidak laris. Penelitian dilakukan dengan pendekatan kuantitatif, melalui pengumpulan data penjualan serta wawancara langsung dengan pemilik toko. Sistem yang dibangun menggunakan bahasa pemrograman PHP dan database MySQL, serta dirancang dengan alat bantu seperti UML, DFD, dan ERD. Hasil dari sistem klasterisasi ini diharapkan dapat memberikan informasi strategis yang berguna bagi Alya Collection dalam merencanakan stok, promosi, serta pengembangan produk, sehingga mampu meningkatkan penjualan secara efektif dan efisien. Kata kunci: data mining; k-means clustering; penjualan; alya collection; sistem informasi
INOVASI PERTANIAN DIGITAL DALAM PENGELOLAAN NUTRISI CAIR NITROGEN TANAMAN KANGKUNG Saputra, Herman; Nofriadi, Nofriadi
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol 8, No 4 (2025): November 2025
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v8i4.5734

Abstract

Abstract: The management of liquid nitrogen nutrients in water spinach cultivation is still largely performed manually, which can lead to inaccurate dosage, irregular fertilization schedules, and uneven nutrient distribution. This study aims to design and implement a digital agriculture system based on the Internet of Things (IoT) for managing liquid nitrogen nutrients in water spinach cultivation. The research adopts an applied research method with a systems engineering approach. The developed system utilizes an ESP32 microcontroller as the main control unit, a Real Time Clock (RTC) module for fertilization scheduling, a relay as an actuator controller, and a water pump to automatically distribute liquid nutrients according to plant growth stages. The study was conducted on a water spinach cultivation field in Punggulan Village, Asahan Regency, using one planting bed as the research sample. The implementation results indicate that the system is capable of delivering liquid nutrients in a scheduled and consistent manner, thereby improving fertilization efficiency in terms of time, labor, and uniformity of nutrient distribution. Furthermore, the application of this system has a positive impact on the growth of water spinach plants. Therefore, the proposed system has the potential to enhance land productivity and support the adoption of IoT-based modern agricultural technology. Keyword: Internet of Things, ESP32, Real Time Clock, liquid nitrogen nutrients, water spinach, digital agriculture Abstrak: Pengelolaan nutrisi cair nitrogen pada budidaya tanaman kangkung masih banyak dilakukan secara manual, sehingga berpotensi menimbulkan ketidaktepatan dosis, ketidakteraturan waktu pemupukan, serta distribusi nutrisi yang tidak merata. Penelitian ini bertujuan untuk merancang dan menerapkan sistem pertanian digital berbasis Internet of Things (IoT) dalam pengelolaan nutrisi cair nitrogen pada tanaman kangkung. Metode penelitian yang digunakan adalah penelitian terapan dengan pendekatan rekayasa sistem. Sistem yang dikembangkan memanfaatkan mikrokontroler ESP32 sebagai unit kendali utama, modul Real Time Clock (RTC) sebagai penjadwal pemupukan, relay sebagai pengendali aktuator, serta pompa air untuk mendistribusikan nutrisi cair secara otomatis sesuai umur tanaman. Penelitian dilaksanakan pada lahan budidaya kangkung di Desa Punggulan, Kabupaten Asahan, dengan satu bulutan sebagai sampel penelitian. Hasil implementasi menunjukkan bahwa sistem mampu melakukan pemberian nutrisi cair secara terjadwal dan konsisten, serta meningkatkan efisiensi pemupukan dari segi waktu, tenaga kerja, dan pemerataan distribusi nutrisi. Penerapan sistem ini juga memberikan dampak positif terhadap pertumbuhan tanaman kangkung. Dengan demikian, sistem yang dikembangkan berpotensi mendukung peningkatan produktivitas lahan dan penerapan teknologi pertanian modern berbasis IoT. Kata kunci: Internet of Things, ESP32, RTC, nutrisi cair nitrogen, tanaman kangkung, pertanian digital.
Analysis of Key Factors in Successful Senior High School Principal Leadership Amirudin, Amirudin; Firdaus, Firdaus; Widodo, Widodo; Saputra, Herman; Ahmad, Raihan Ahma
Al-Hikmah: Jurnal Agama dan Ilmu Pengetahuan Vol. 23 No. 1 (2026): Al-Hikmah: Jurnal Agama dan Ilmu Pengetahuan (AJAIP)
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/ajaip.2026.vol23(1).27495

Abstract

This article examines the factors that contribute to successful principal leadership at SMA Negeri 1 Bunut. Principal leadership is pivotal to the quality of teaching–learning processes and student outcomes; understanding the critical determinants of effective leadership can strengthen secondary-school leadership, particularly in under-researched regional contexts. The study aimed to analyse those critical factors from the principal’s experience and perspectives. A qualitative case-study approach was adopted. Data were collected through in-depth interviews with the principal, supplemented by field observation and document review, and were analysed using thematic analysis and source triangulation. Six overarching themes were identified: motivation to serve in one’s home region; strategies emphasising collaboration, discipline, and collegiality; transformational leadership; direct communication and communication via social media; role modelling as a critical factor; instructional leadership; and a focus on process. Leadership effectiveness was assessed in terms of academic and non-academic achievement, teacher and staff satisfaction, management effectiveness, and achievement of the school’s vision and mission. In sum, successful leadership at SMA Negeri 1 Bunut is underpinned by role modelling, transformational leadership, and attention to both instruction and students’ character development. Other principals and policymakers are encouraged to prioritise role modelling, teacher professional development, instructional leadership, and process-oriented evaluation.
Penerapan Servant Leadership Model di Sekolah Dasar Negeri (SDN) 007 Pangkalan Kerinci Amirudin, Amirudin; Nuraini, Putri; Widodo, Widodo; Saputra, Herman; Nurjannah, Siti
Al-Hikmah: Jurnal Agama dan Ilmu Pengetahuan Vol. 22 No. 1 (2025): Al-Hikmah: Jurnal Agama dan Ilmu Pengetahuan (AJAIP)
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/ajaip.2025.vol22(1).21745

Abstract

This study aims to look at the implementation of an effective servant leadership model for primary school principals with a focus on the implementation of the servant leadership model at SDN 007 Pangkalan Kerinci. This model has great significance in efforts to improve the quality of school principals, which will have a positive impact on the quality of basic education. Based on the results of the national principal competency test, it appears that the competency of primary school principals shows the lowest results compared to principals at the junior secondary and senior secondary levels. This research applies the case study method to analyze the behavior of individuals, particularly school principals. The key informant in this study is the principal. The collection method was through interviews, observations, and documentation. Qualitative data analysis was conducted using the Miles dan Huberman model. The implementation of the servant leadership model at SDN 007 Pangkalan Kerinci shows that this approach can create a better educational environment and improved student welfare. Through active involvement of all stakeholders, innovative programs and strong support for new teachers, the principal succeeded in building a collaborative atmosphere that supports student and teacher development.
Co-Authors -, Jerry Abda Abda Ahmad, Raihan Ahma Aidil Syah Putra Alfi Rahmi, Alfi Amirudin Amirudin Arimbawa, I Wayan Gede Bandem Bachtiar Efendi, Bachtiar Cahyani, Kadek Cindy Dwi Citra, Dandy Dalimunthe, Ruri Ashari Damayanti, Ni Kadek Ayu Maya dermawan, ari Djafar, Chehe DM, M. Yusuf Erawan, I Putu Putra Ferdian, Arif Firdaus Firdaus Gotama, Dewi I Gde Ardika Nuaba I Made Arimbawa I Made Gotra I MADE MULIARTA . I Wayan Juli Sumadi I Wayan, Oka Semara Jaya I. B. Tjakra Wibawa Manuaba Indah, Made Sanitca Jayakusuma, I Putu Prabawa Jhonson Efendi Hutagalung Khairani, Siti Fadillah Kifti, Wan Mariatul Kurnia Sirni, Dian Yudha Lestari, Oni Dewi Maker, Luh Putu Iin Indrayani Marpaung, Nasrun Mayendra, Ifvan Limalasa Muhammad Hatta Nababan, Pesta Cici Dubliana Ni Made Dwi Puspawati Ni Made Maharini Rahayu Ni Made Mahastuti Ni Putu Ekawati Ni Putu Sriwidyani Ni Wayan Winarti Nofita, Herika Nofriadi Nofriadi Nur Aini Nuraini, Putri Nyoman Suryawati Nyoman Upadana Paramita, Ayu Diah Perdana Pranata, I Putu Yogi Prima Saraswati Sanjiwani Sudarsa Putri, Novi Sentia Putu Anda Tusta Adiputra Rahayu, Elly Rohminatin, Rohminatin Safitri, Windi Aulia sahren, sahren Sebayang, Boby Putra Ramadhan Sena, Maulana Dwi Siregar, Iqbal Kamil Siti Nurjannah Sulistiawan, Defry Nazhira Suryaningmara, I Wayan Bagus Syafnur, Afdhal Syahputra, Abdul Karim Syamjaya, Syamjaya Tisa, Yunita Afril Turnip, Ridho Wira Uswatun Hasanah Widodo Widodo Wikaputri, Anak Agung Ayu Mutiara