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All Journal Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) Sistem Pendukung Keputusan dengan Aplikasi Jurnal Pengabdian Nasional (JPN) Indonesia
Dio Arif Hanafi Harianja
Universitas Islam Negeri Sumatera Utara
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 Muhammad Aldo Faturrahman; Armansyah Putra Siregar; Dio Arif Hanafi Harianja
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.
Decision Support System for Regional Planning of Horticultural Commodities Using the CODAS Method Based on a Case Study Indra Irawan; Dio Arif Hanafi Harianja; Armansyah Putra Siregar; Muhammad Angga Septiawan; M Rizky Ramadhan; Mutammim Zisdian
Sistem Pendukung Keputusan dengan Aplikasi Vol 5 No 1 (2026)
Publisher : Ali Institute or Research and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55537/spk.v5i1.1575

Abstract

This study aims to determine the priority of regional development for horticultural commodities. The planning and selection process involves various criteria, including productivity, land area, selling price, market demand, resistance to pests and climate, production costs, and government support; therefore, a systematic and objective approach is required. This study employs the Combinative Distance-Based Assessment (CODAS) method, a Multi-Criteria Decision Making (MCDM) approach that evaluates alternatives based on their Euclidean distance from the negative-ideal solution. The data used are secondary data obtained from the Department of Food Security, Food Crops, and Horticulture of North Sumatra Province and the Central Statistics Agency (BPS), complemented by literature review, observation, and interviews, and then analyzed quantitatively. The results show that bananas rank first with a Euclidean distance value of 0.209949, followed by cayenne pepper with 0.165406 and papaya with 0.161221. Furthermore, red chili (0.156669) and shallots (0.126977) also exhibit relatively high values compared to other commodities. A higher Euclidean distance indicates greater potential for development in regional horticultural planning. This study provides a priority ranking of commodities that can serve as a basis for decision-making in regional horticultural development planning in North Sumatra Province.
Implementasi Pengolahan Kotoran Sapi Menjadi Kompos Menggunakan EM4 di Desa Namotongan, Kabupaten Langkat Muslim Lubis; Dio Arif Hanafi Harianja; Tasya Ika Saylani Tarigan; 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 Armansyah Putra Siregar Indra Irawan M Rizky Ramadhan Muhammad Aldo Faturrahman Muhammad Angga Septiawan Muslim Lubis Mutammim Zisdian Natasya Natasya Tasya Ika Saylani Tarigan