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All Journal JOURNAL OF INFORMATION SYSTEM RESEARCH (JOSH) Jurnal Pengabdian Nasional (JPN) Indonesia
Tarigan, Tasya Ika Saylani
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Computer Science & IT Decision Sciences, Operations Research & Management Environmental Science Law, Crime, Criminology & Criminal Justice Social Sciences Other

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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.
Perancangan Sistem Informasi Penjualan Seragam Sekolah Dasar Berbasis Mobile dengan Menggunakan Metode Prototype Alda, Muhamad; Hidayat, Riyan; Surbakti, Gita Syahfitri Wulandari; Azmi Pohan, Wulan; Tarigan, Tasya Ika Saylani
Journal of Information System Research (JOSH) Vol 7 No 2 (2026): January 2026
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/josh.v7i2.9001

Abstract

Advances in information and communication technology have driven digital transformation across various sectors, including education and business, making the use of technology crucial for data processing and sales. Information systems are capable of integrating people, data, processes, and technology to improve efficiency and support decision-making. In the context of education, the use of technology for sales and data processing is important for increasing effectiveness and service quality. However, in the education sector, the sale of elementary school goods is still largely done manually, which can lead to problems such as data inconsistencies, delayed reports, and decreased efficiency. Therefore, an information system is needed that can manage sales transactions and data in an integrated and automated manner. Various previous studies have shown that implementing a digital sales information system can improve data processing effectiveness, minimize recording errors, and support managerial decision-making. As the use of mobile devices increases, the development of mobile-based information systems becomes a relevant solution because it offers ease of access, flexibility of use, and improved customer service quality. In addition, the prototyping method has proven effective in system development because it directly involves users, resulting in a system that is more aligned with user needs. Based on these problems and previous research findings, this study aims to design a Mobile-Based Elementary School Uniform Sales Information System using the prototyping method. This method allows for direct user involvement in the design process, thus creating a system design that is more aligned with user needs. The research results include a system design that encompasses process modeling using the Unified Modeling Language (UML) and the design of the mobile application's user interface. This system design is expected to serve as a reference in the development of an integrated mobile-based school information system and improve efficiency in data processing and sales.
Co-Authors Azmi Pohan, Wulan Harianja, Dio Arif Hanafi Lubis, Muslim Muhamad Alda Natasya Natasya Riyan Hidayat Surbakti, Gita Syahfitri Wulandari