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All Journal Jurnal Teknologi Pendidikan CESS (Journal of Computer Engineering, System and Science) JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING JURNAL MEDIA INFORMATIKA BUDIDARMA JATI (Jurnal Mahasiswa Teknik Informatika) JOURNAL OF INFORMATION SYSTEM RESEARCH (JOSH) Journal of Computer System and Informatics (JoSYC) Jurnal Pengabdian kepada Masyarakat Nusantara JPTE: Jurnal Pendidikan Teknik Elektro JTEIN: Jurnal Teknik Elektro Indonesia Jurnal Vokasi Informatika (JAVIT) Bulletin of Computer Science Research Instal : Jurnal Komputer Jurnal IPTEK Bagi Masyarakat Jurnal Pengabdian Masyarakat IPTEK JURNAL TEKNOLOGI INFORMASI & KOMUNIKASI DALAM PENDIDIKAN JURNAL MULTIDISIPLIN ILMU AKADEMIK Jurnal Intelek Insan Cendikia Indonesian Journal of Education and Social Humanities
Rosma Siregar
Universitas Negeri Medan
Religion Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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Pengaruh Integrasi Pembangkit Fotovoltaik (PV) terhadap Alokasi Kapasitor yang Optimal pada Jaringan Distribusi Energi Listrik Astrid, Erita; Dani Solihin, Muhammad; Siregar, Rosma; Suryanto, Eka Dodi
Jurnal Pendidikan Teknik Elektro Vol 5 No 2 (2024): Jurnal Pendidikan Teknik Elektro
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jpte.v5i2.545

Abstract

Recent advances in renewable energy as well as changes in infrastructure and government regulations have driven the increasing use of distributed solar/photovoltaic power generation (PV) in the electricity distribution network. The integration of PV as one of the active power supply sources if not accompanied by reactive power compensation will cause increased power losses in the system and increase the risk of voltage instability. Therefore, along with the intensive use of PV, planning the allocation of capacitors as reactive power compensators is very necessary. This work examines the optimization of capacitor allocation and sizing by the Genetic Algorithm (GA) method, accounting for the uncertainties in photovoltaic output fluctuations. he emergence of uncertainty parameters in the problem formulation makes the analysis of power flow in the system must be carried out with a probabilistic technique. The outcomes of the power flow analysis, specifically the power losses within the system, will serve as the objective function for the optimization process where the purpose of this optimization is to minimize the resulting power losses. The proposed optimization is simulated on the IEEE 34 bus radial distribution system using Matlab. The results showed a reduction in losses of 53.18%, especially from 219.2 kW to 160 kW. In addition, this optimization scheme also identified suitable locations for installing capacitors, namely on buses 7, 8, 12, 21, 25, and 31.
Bibliometric Analysis of Cooperative Learning's Impact on Critical Thinking Skills in Computer Applications Courses in Vocational Education Sabrina, Elsa; Siregar, Rosma; Pratama, Saras
Jurnal Vokasi Teknik Informatika Vol 5 No 2 (2025)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/javit.v5i2.256

Abstract

This study aims to map the trends and developments in the literature regarding the influence of Cooperative Learning on enhancing students’ Critical Thinking skills within the context of Vocational Education, using a bibliometric approach and a systematic literature review (SLR). The bibliometric analysis was conducted using R Studio, while keyword network visualization was performed using VOSviewer. The findings indicate that the peak of citations occurred in 2016, and the highest number of publications was recorded in 2022, with an average of 2.7 authors per article, reflecting significant multidisciplinary collaboration. The keyword visualization reveals a strong interrelation between cooperative learning, critical thinking, and vocational education, forming the core cluster of the research. These findings highlight the importance of cooperative learning as a strategic approach in developing vocational students' critical thinking skills and recommend the development of evidence-based implementation guidelines, contextual field research, and cross-sector collaboration to optimize its application in educational practice.
Perancangan dan Implementasi Aplikasi Manajemen Inventaris Toko Berbasis Desktop Menggunakan Python dengan Pendekatan Pemrograman Berorientasi Objek (OOP) Rosma Siregar; Ratih Tri Elsadin; Fatma Asisah; Yosa Steven Perangin Angin; Abel Frans Lamsihar Sinaga
JURNAL MULTIDISIPLIN ILMU AKADEMIK Vol. 2 No. 2 (2025): April
Publisher : CV. KAMPUS AKADEMIK PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jmia.v2i2.4343

Abstract

In the age of modern technology, effective inventory management is an essential part of business operations. Many small businesses, especially MSMEs, continue to use manual methods that have a high risk of data errors. The purpose of this research is to create a desktop-based application for inventory management called Stock Track that uses the Python programming language and Object Oriented Programming (OOP) approach. Recording items, monitoring stock, and generating reports that help decision-making are all features that this application has. Research shows that the app helps manage inventory more efficiently and reduces reliance on manual record-keeping. Stock Track is designed to help store owners manage their stock in a more organized and accurate manner with a user-friendly user interface.
Design of Alumni and Career Development Center Web Based Application Using Agile SDLC Methodology Maulana, Bagoes; Siregar, Rosma; Hutahaean, Harvei Desmon; Sinaga, Tonggo
Bahasa Indonesia Vol 15 No 02 (2023): Instal : Jurnal Komputer Periode (Juli-Desember)
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/jurnalkomputer.v15i02.125

Abstract

One of the primary benchmarks for evaluating the quality of higher education is the successful integration of its graduates into the workforce. Unfortunately, the Faculty of Engineering at Universitas Negeri Medan lacks a dedicated platform to facilitate the dissemination of job opportunities to its alumni and establish partnerships with employers to streamline this process. As a solution, this research endeavors to develop a web-based Alumni and Career Development Center application that serves as a bridge between the corporate sector and the industrial world, enabling alumni to access job opportunities and employers to connect online. The system design incorporates the Agile Method, UML, PHP programming language, and the MySQL database engine. However, there is still room for enhancement, particularly in integrating the candidate selection process. The testing data demonstrates promising results, underscoring the system's reliability for future implementation. The application has undergone testing and assessment, including an acceptability test with a rating of 88.32, falling within the valid range, and a user interface evaluation yielding a score of 0.916667, indicating a very high level of quality.
PENGEMBANGAN WEBSITE PEMINJAMAN RUANGAN DI GEDUNG 89 JURUSAN PENDIDIKAN TEKNIK ELEKTRO UNIMED Rahmadani, Reni; Siregar, Rosma; Maulana, Bagoes; Hamzah, Afif; Sihombing, Gracia Napare; Purba, Julio Aldrin
JURNAL TEKNOLOGI INFORMASI & KOMUNIKASI DALAM PENDIDIKAN Vol. 11 No. 2 (2024): Desember - Jurnal Teknologi Informasi dan Komunikasi dalam Pendidikan
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jtikp.v11i2.66788

Abstract

Sistem peminjaman ruangan berbasis web ini dikembangkan sebagai bentuk respon terhadap tantangan dan manajamen ruangan yang dihadapi di Jurusan Pendidikan Teknik Elekto Universitas Negeri Medan. Di era pasca pandemi COVID - 19 pembelajaran yang sebelumnya daring mulai menjadi hybrid learning, sehingga penggunaan ruangan di kampus menjadi semakin meningkat jika dibandingkan dengan semakin bertambah banyaknya mahasiswa baru setiap tahunnya. Maka penelitian ini mengusulkan perlu adanya sistem yang mengatur peminjaman ruangan secara online untuk mengatasi masalah peminjaman ruangan yang masih manual, konflik jadwal, dan kurangnya akses informasi terkait ketersediaan ruangan. Metode waterfall digunakan untuk membangun sistem ini, melalui serangkaian tahapan mulai dari analisis sampai ke implementasi sistem ini. Diharapkan penggunaan sistem ini dapat meningkatkan efisiensi dan efektivitas pengelolaan ruangan secara keseluruhan di Universitas Negeri Medan.
RANCANG BANGUN APLIKASI MOBILE LEARNING UNTUK MODIFIKASI PERILAKU PADA ANAK BERKEBUTUHAN KHUSUS Maulana, Bagoes; Siregar, Rosma; Supriadi; Efendi, Muhammad Mulya; Firdaus, Kevin; Sinaga, Tonggo
JURNAL TEKNOLOGI INFORMASI & KOMUNIKASI DALAM PENDIDIKAN Vol. 11 No. 2 (2024): Desember - Jurnal Teknologi Informasi dan Komunikasi dalam Pendidikan
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jtikp.v11i2.66793

Abstract

Dalam rangka mendukung upaya modifikasi perilaku dalam pendidikan khusus, penelitian ini bertujuan untuk merancang dan mengevaluasi sebuah aplikasi pembelajaran berbasis mobile yang inovatif dan bermanfaat. Aplikasi ini dirancang khusus untuk membantu modifikasi perilaku pada anak-anak dengan gangguan spektrum autisme (Autism Spectrum Disorder/ASD). Proses pengembangan aplikasi menggunakan teknik chaining untuk aktivitas harian, dengan pendekatan metodologi Penelitian dan Pengembangan (Research and Development/R&D) serta model Multimedia Development Life Cycle (MDLC). Hasil penelitian menunjukkan bahwa aplikasi ini mampu meningkatkan perilaku adaptif secara signifikan pada anak-anak dengan ASD. Namun demikian, terdapat beberapa keterbatasan, seperti ukuran sampel yang kecil dan fokus yang terbatas pada isu perilaku tertentu, yang dapat memengaruhi generalisasi hasil penelitian ini. Penelitian ini memberikan kontribusi bernilai dengan menghadirkan alat pendidikan khusus yang dirancang untuk meningkatkan pengalaman belajar serta hasil perilaku anak-anak dengan ASD. Aplikasi ini diharapkan dapat mendukung pendidik dan orang tua dalam menerapkan pendidikan inklusif secara lebih efektif.
IMPLEMENTASI OBJECT-ORIENTED PROGRAMMING (OOP) DALAM APLIKASI 'ORDERWASH' BERBASIS DESKTOP MENGGUNAKAN VISUAL BASIC Abdurrahman, Umar; Yunansyah Siregar, Wal; Siregar, Rosma
JATI (Jurnal Mahasiswa Teknik Informatika) Vol. 9 No. 4 (2025): JATI Vol. 9 No. 4
Publisher : Institut Teknologi Nasional Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/jati.v9i4.13964

Abstract

Perkembangan teknologi dalam bidang pemrograman memungkinkan penerapan konsep Object-Oriented Programming (OOP) dalam pengembangan perangkat lunak, termasuk pada sistem transaksi laundry. Namun, masih banyak pelaku usaha laundry yang menggunakan pencatatan manual sehingga proses transaksi menjadi kurang efisien dan rawan kesalahan. Penelitian ini bertujuan untuk mengembangkan aplikasi desktop berbasis OOP yang dapat mempermudah pengelolaan transaksi laundry. Aplikasi yang dinamakan Orderwash ini dikembangkan menggunakan bahasa pemrograman Visual Basic melalui platform Visual Studio 2022. Metode penelitian yang digunakan adalah metode deskriptif, yaitu dengan menjelaskan fungsi dari setiap komponen dalam aplikasi dan bagaimana implementasi konsep OOP diterapkan. Hasil implementasi menunjukkan bahwa penggunaan OOP meningkatkan modularitas program, memudahkan proses pemeliharaan, serta memberikan efisiensi dalam pengelolaan data transaksi. Aplikasi Orderwash mampu membantu pemilik usaha laundry dalam mencatat, menyimpan, menghapus, dan mencetak laporan transaksi secara lebih cepat, akurat, dan terstruktur.
Rekomendasi Pemberian Kredit Pemilikan Rumah Menggunakan Kombinasi Metode VIKOR dan Pembobotan Entropy Irmansyah Lubis, Ahmadi; Siregar, Rosma
Journal of Computer System and Informatics (JoSYC) Vol 5 No 3 (2024): May 2024
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/josyc.v5i3.5118

Abstract

Home Ownership Credit (KPR) is the process of buying a house by way of credit or installments for a certain period of time and a determined interest rate. Problems that often arise in the process of granting mortgages are when providing an analysis of recommendations for the suitability of a house, such as credit analysis errors which often result in bad credit payments and disrupt the fund circulation system between credit payments and receivables. Billing. In addition, there is no filter in determining the eligibility of providing credit computerized, the system is equipped with a decision support system that can describe the supporting factors that are used as a calculation weight in making decisions on determining home ownership loans for those who deserve to receive them. To analyze the feasibility of providing home ownership loans, a decision support system is needed that can provide a good analysis to determine the creditworthiness of home ownership with the VIKOR method and the Entropy method. The Entropy method is applied to determine the weight of each criterion and the VIKOR method is used to rank alternatives. Based on the results of the study, the VIKOR method and the Entropy weighting method can provide recommendations for providing home ownership loans to eligible customers based on specified criteria. The ranking results were obtained by testing variations in the VIKOR index value with the best alternative result, namely A3 (3rd Alternative). And the Entropy method produces objective and proportional criteria weights and obtains valid criteria weights without having to give criteria weights manually or subjectively, so it is useful for determining the weight of criteria that need not be doubted about their validity.
Effectivity of the Microsoft Excel Application on Student Understanding in Statistics Courses Simaremare, Sinta; Siregar, Rosma
Indonesian Journal of Education and Social Humanities Vol. 1 No. 2 (2024): JUNE 2024
Publisher : MANDAILING GLOBAL EDUKASIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62945/ijesh.v1i2.60

Abstract

This research aims to test the effectiveness of the Microsoft Excel application on students' understanding of statistics courses. This research is quantitative research and descriptive data analysis, aimed at measuring students' level of understanding of various statistical concepts. Because research data is in the form of numbers, while descriptive analysis is statistics which functions to provide an overview of the object being studied. In this research, researchers used a total sampling technique where the entire population was sampled. So a sample of 22 people was obtained. For data collection, researchers used an online questionnaire method using Google form, the data obtained was analyzed using descriptive analysis. Of the 25 participants, 22 students answered the questionnaire. Respondents' answers regarding question 1, How often do students use Microsoft Excel (P1), Students who said they used Microsoft Excel several times a week and students who said they used Microsoft Excel once a month had the same percentage, namely 31.8%. Then 9.1% said they rarely use Microsoft Excel. Several things that can be concluded from this research are that it is still found that some students do not understand how to use Microsoft Excel, so there is a need for training for students to introduce and train students in the Regular B Building Engineering Education Study Program more deeply in applying Microsoft Excel in solving problems and processing data. and make it easier to complete assignments in statistics courses.
PERANCANGAN APLIKASI KUIS SEDERHANA BERBASIS PEMROGRAMAN BERORIENTASI OBJEK DENGAN MENGGUNAKAN MICROSOFT VISUAL STUDIO Rosma Siregar; Bagoes Maulana; Henny Puspa Hendrani Nasution; Mhd Fadhlan Hawari; M.Raflie Alhadi; Yohanes Febrian Silalahi
Jurnal Intelek Insan Cendikia Vol. 2 No. 4 (2025): APRIL 2025
Publisher : PT. Intelek Cendikiawan Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini bertujuan untuk merancang dan mengembangkan sebuah aplikasi kuis pemrograman dasar berbasis desktop dengan menerapkan paradigma Pemrograman Berorientasi Objek (PBO) menggunakan bahasa pemrograman VB.NET dalam platform Microsoft Visual Studio. Aplikasi dirancang menggunakan pendekatan multi-form serta prinsip event-driven programming, yang memungkinkan penyajian soal secara berurutan dan penilaian otomatis terhadap jawaban. Dengan desain modular dan sistem evaluasi yang berlangsung secara langsung (real-time), aplikasi ini diharapkan dapat berperan sebagai alat evaluasi yang menarik dan efisien dalam mendukung proses belajar pemrograman. Uji coba menunjukkan bahwa aplikasi berfungsi dengan baik tanpa memerlukan integrasi basis data.
Co-Authors Abdurrahman, Umar Abel Frans Lamsihar Sinaga Ahmadi Irmansyah Lubis Ali Akbar Lubis Bagoes Maulana Bakti Dwi Waluyo Cut Fadhilah Dani Solihin, Muhammad Efendi, Muhammad Mulya Eka Dodi Suryanto Erita Astrid Fatma Asisah Feri Setiawan Firdaus, Kevin Hamzah, Afif Henny Puspa Hendrani Nasution Hutahaean, Harvei Desmon Irmansyah Lubis, Ahmadi Kartika Sari Lusiyanti Lusiyanti M.Raflie Alhadi Marsangkap Silitonga Maulana, Bagoes Mhd Fadhlan Hawari Muhammad Dani Solihin Muhammad Isnaini Nunsina, Nunsina Pratama, Saras Purba, Julio Aldrin Rahmadini, Fathia Ratih Tri Elsadin Reni Rahmadani SABRINA, ELSA Sihombing, Gracia Napare Simaremare, Sinta SINAGA, DESMAN JONTO Siti Julianita Siregar Supriadi Syahputri, Astri Tonggo Sinaga, Tonggo Umri Erdiansyah Yohanes Febrian Silalahi Yosa Steven Perangin Angin Yunansyah Siregar, Wal