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Syaiful Zuhri Harahap
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Program Studi Sistem Informasi, Fakultas Sains & Teknologi, Universitas Labuhanbatu Jalan Sisingamangaraja No.126 A KM 3.5 Aek Tapa, Bakaran Batu, Rantau Sel., Kabupaten Labuhanbatu, Sumatera Utara 21418
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Journal of Computer Science and Information Systems (JCoInS)
Published by Universitas Labuhanbatu
ISSN : -     EISSN : 27472221     DOI : 10.36987
Core Subject : Science,
Computer Science & IT
Journal of Computer Science and Information Systems (JCoInS) - Journal of the Information Systems Study Program seeks to facilitate critical study and in-depth analysis of information system problems, this journal is an expert computer science scientist, information system scientist. e-ISSN : 2747-2221
Arjuna Subject : Ilmu Komputer (semua kategori) - Ilmu Komputer (Lain-Lain)
Articles 165 Documents
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Audit Energi dan Analisis Peluang Penghematan Konsumsi Energi di PT. Mitra Globalindo Nusantara Wirasari, Riza Ria; Azmy, Rani Zaina; Supriono, Supriono
Journal of Computer Science and Information System(JCoInS) Vol 7, No 1: JCoInS | 2026
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jcoins.v7i1.9028

Abstract

Energi listrik memiliki peranan penting pada kegiatan operasional di suatu perusahaan, instansi, universitas, rumah sakit, hotel dan yang lainnya. Seiring bertambahnya kebutuhan listrik setiap tahun, ketersediaan sumber energi listrik menjadi semakin berkurang. Oleh karena itu, audit energi merupakan salah satu metode konservasi untuk mengoptimalkan penggunaan energi.  Audit energi juga merupakan langkah yang tepat untuk menganalisa konsumsi energi, menemukan peluang penghematan serta meningkatkan efisiensi penggunaan energi listrik. PT. Mitra Globalindo Nusantara adalah perusahaan yang bergerak pada usaha pengadaan jaringan infrastruktur dan maintenance jaringan telekomunikasi fiber optik. Penelitian ini menggunakan studi literatur tentang konservasi energi dan melakukan observasi melalui pengamatan dan pengukuran seara langsung pada bangunan PT. Mitra Globalindo Nusantara. Proses pengukuran meliputi pencahayaan, suhu ruangan, kelembapan udara. Sedangkan proses perhitungan konsumsi energi listrik dengan melakukan pengamatan secara langsung berdasarkan penggunaan energi listrik dengan durasi waktu 1x24 Jam dan selama 12 bulan. Perhitungan nilai Intensitas Konsumsi Energi (IKE) untuk ruangan AC dan NON AC untuk setiap ruangan dan setiap lantai pada bangunan. Hasil dari penelitian menyatakan nilai IKE untuk ruangan NON AC memilki nilai rata-rata 3.9 kWh/m²/bulan, yang termasuk ke dalam kategori efisien. Sedangkan ruangan AC memiliki nilai IKE  rata-rata 57, 2 kWh/m²/bulan yang termasuk ke dalam kategori boros. Konsumsi energi paling besar pada bangunan adalah penggunaan AC yang mencapai 47% dari total keseluruhan penggunaan energi/hari. 
Fundamental Dan Implementasi Big Data Dalam Transformasi Digital Setiawan, Haykal Tito; Reksa, Angga; Ritonga, Rizky Pratama Ramadani; Sitorus, Sahat Parulian
Journal of Computer Science and Information System(JCoInS) Vol 7, No 1: JCoInS | 2026
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jcoins.v7i1.8894

Abstract

Digital transformation has encouraged organizations to optimally utilize information technology to manage data. Big data has become a key element that plays a crucial role in supporting the digitalization process in various sectors. The theoretical basis of this study discusses the concepts of big data, digital transformation, information systems, data governance, and digital human resources. These theories form the basis for understanding the relationship between technology and organizational performance. The research method used is descriptive qualitative, using a literature review and case study approach. Data was obtained from various reliable sources and systematically analyzed to obtain valid results. The results show that implementing big data can improve operational efficiency and the quality of decision-making. In addition, big data also drives innovation and strengthens organizational competitiveness. The research discussion emphasizes that the success of big data implementation is influenced by the readiness of human resources, infrastructure, and management support. A holistic approach is necessary for digital transformation to be sustainable. The study concludes that big data is a strategic asset in the digital era. Optimal utilization of big data can support organizational growth, innovation, and sustainability in the future.
Etika Bisnis Islam Pada Pedagang Kuliner Di Pusat Pasar Kota Medan Sibuea, Nurhalimah; Subaktiar, Subaktiar; Adriansyah, Adriansyah; Hakim, Mukti
Journal of Computer Science and Information System(JCoInS) Vol 7, No 1: JCoInS | 2026
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jcoins.v7i1.9031

Abstract

This study used a qualitative approach with field research. The subjects were food and beverage vendors at the Medan City Market Center. Data sources consisted of primary and secondary data, with data collection techniques using interviews, observation, and documentation. The results of the study indicate that 1). Food vendors at the market center are able to implement three aspects of Islamic business axioms: equilibrium, free will, and responsibility, but have not been able to implement the aspect of unity. 2). Obstacles faced by food vendors in implementing Islamic business ethics include the idea that trading is more important than fulfilling obligations as Muslims. Furthermore, there are obstacles in inadequate waste management regulations, so good cooperation is expected between food vendors, buyers, and the relevant government. 3). The implementation of Islamic business ethics among food vendors at the market center aims to increase education about the importance of trading based on Islamic business ethics, thus enabling food vendors to conduct transactions properly and in accordance with Islamic law.
Analisis Tren Pendaftaran Siswa Alwashliyah Marbau Menggunakan Big Data Putra, Mhd Aftiansyah; Mulawarman, Marchelius; Aziz, Abdul; Sitorus, Sahat Parulian
Journal of Computer Science and Information System(JCoInS) Vol 7, No 1: JCoInS | 2026
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jcoins.v7i1.8865

Abstract

This study aims to analyze student enrollment trends at the Alwashliyah Marbau Education Foundation over the past five years, focusing on the MTS, MAS, SMK-1, and SMK-2 levels. The analysis shows that the SMK-1 vocational program has seen a 15% increase in enrollment annually, while the MAS program has seen a significant decline of up to 20% in the last year. The majority of enrollees come from the Marbau area (70%), indicating a certain geographic dominance in student recruitment. Correlation tests identified a positive relationship between digital promotion and enrollment growth at the SMK level. Key recommendations include increasing the intensity of digital promotion, adjusting the curriculum based on job market needs, and evaluating promotional strategies for programs with declining trends. The resulting data visualization also provides insights to support recruitment strategy optimization.
Pengaruh Corporate Social Responsibility, Profitabilitas dan Leverage Terhadap Nilai Perusahaan Pada Perusahaan Manufaktur Yang Terdaftar di Bursa Efek Indonesia Periode 2021-2023 Pulungan, Putri Awaliyah Rahma; Suriana, Suriana; Wardani, Widia
Journal of Computer Science and Information System(JCoInS) Vol 7, No 1: JCoInS | 2026
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jcoins.v7i1.8923

Abstract

This study aims to determine the effect of Corporate Social Responsibility (CSR), Profitability, and Leverage on Company Value, both partially and simultaneously, in companies that are the research samples. The method used is multiple linear regression analysis with a sample size of 54 companies. The independent variables in this study are CSR, Profitability, and Leverage, while the dependent variable is Company Value. The results of the t-test analysis show that: (1) the CSR variable has a significant negative effect on company value with a calculated t value of -2.293 < t table 1.675 and a significance of 0.026 (< 0.05); (2) the Profitability variable does not have a significant effect with a calculated t value of 0.594 < t table 1.675 and a significance of 0.555 (> 0.05); and (3) the Leverage variable has a negative but not significant effect with a calculated t value of -0.300 < t table 1.675 and a significance of 0.765 (> 0.05). Simultaneously, the F-test results show a calculated F-value of 1.929 < F-table 2.79 with a significance level of 0.137 (> 0.05), indicating that CSR, Profitability, and Leverage collectively have no significant effect on firm value. The Adjusted R² value of 0.019 indicates that the variation in firm value can only be explained by the three independent variables by 1.9%, while the remaining 98.1% is explained by other factors outside this research model. This study implies that companies need to manage CSR and debt use more wisely and improve profitability quality to positively impact firm value.

Page 17 of 17 | Total Record : 165

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