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All Journal Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) Jurnal Pengabdian Nasional (JPN) Indonesia
Harianja, Dio Arif Hanafi
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Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Environmental Science Law, Crime, Criminology & Criminal Justice Social Sciences Other

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Perancangan Sistem Mesin Layanan Mandiri di Kantor Bapenda Medan Faturrahman, Muhammad Aldo; Siregar, Armansyah Putra; Harianja, Dio Arif Hanafi
Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) Vol 9 No 3 (2025): JULI-SEPTEMBER 2025
Publisher : Lembaga Otonom Lembaga Informasi dan Riset Indonesia (KITA INFO dan RISET)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/jtik.v9i3.3558

Abstract

Information systems are essential to support work processes and public services.One type of information technology widely used in government institutions, such as the Regional Revenue Agency of Medan City, is the management of official correspondence.Every organization or institution has various tools to convey information to others, one of which is through letters.The disposition of letters is a public service that needs improvement at the Regional Revenue Agency of Medan City.This study aims to design a self-service application that facilitates the management of letter dispositions, thereby improving the efficiency of administrative services.The research employs the waterfall method, which includes the stages of requirements analysis, design, implementation, and testing.The result of this research is a prototype application that enables digital management of letter dispositions, equipped with features that simplify tracking and managing letters for both administrators and users.These findings are expected to serve as a foundation for further development of digital administrative services in other government institutions.
Implementasi Pengolahan Kotoran Sapi Menjadi Kompos Menggunakan EM4 di Desa Namotongan, Kabupaten Langkat Lubis, Muslim; Harianja, Dio Arif Hanafi; Tarigan, Tasya Ika Saylani; Natasya, Natasya
Jurnal Pengabdian Nasional (JPN) Indonesia Vol. 7 No. 1 (2026): Januari
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM) STMIK Indonesia Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63447/jpni.v7i1.1642

Abstract

Cow manure in Namotongan Village has not been optimally utilized, creating environmental pollution risks. This community service program aimed to provide training on compost production using Effective Microorganisms (EM4) for livestock waste utilization. The program applied a Participatory Action Research (PAR) design, involving 30 participants consisting of farmers, livestock breeders, and local youth. Activities included preparation, socialization, hands-on practice, mentoring, and evaluation. Evaluation used a Likert-scale questionnaire (1–5, 15 items) and compost quality tests based on final temperature (°C), moisture content (%), pH, C/N ratio, color descriptors, and odor assessed by a subjective calibrated scale. Results indicated an increase in mean knowledge scores from 62% to 88% and skills from 58% to 85% (p < 0.05). A total of 80% of participants agreed that the material was relevant, while 75% found the practice easy to implement. The produced compost met quality standards with stable final temperature (31°C), appropriate moisture content, optimal pH, and C/N ratio of 23:1. The training effectively enhanced participants' capacity in livestock waste management and produced quality compost, although economic potential requires further study.
Co-Authors Faturrahman, Muhammad Aldo Lubis, Muslim Natasya Natasya Siregar, Armansyah Putra Tarigan, Tasya Ika Saylani