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All Journal JURNAL TEKNIK INFORMATIKA DAN SISTEM INFORMASI METHOMIKA: Jurnal Manajemen Informatika & Komputerisasi Akuntansi METHODIKA: Jurnal Teknik Informatika dan Sistem Informasi Jurnal Riset Sistem Informasi dan Teknologi Informasi (JURSISTEKNI) Jurnal Teknologi Informasi dan Komunikasi Jurnal FASILKOM (teknologi inFormASi dan ILmu KOMputer) Jurnal Mandiri IT Jurnal Komputer Teknologi Informasi Sistem Komputer (JUKTISI) Haga: Jurnal Pengabdian Kepada Masyarakat TAMIKA: Jurnal Tugas Akhir Manajemen Informatika & Komputerisasi Akuntansi Jurnal Sains Materi Indonesia
Ofelius Laia
Universitas Nias, Nias, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences

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ANALISIS QUALITY OF SERVICE (QoS) LIVE STREAMING WIRELESS IP CAMERA XONZ BERBASIS SMARTPHONE ANDROID Larosa, Fati Gratianus Nafiri; Laia, Ofelius
METHODIKA: Jurnal Teknik Informatika dan Sistem Informasi Vol. 5 No. 2 (2019): September 2019
Publisher : Universitas Methodist Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46880/mtk.v5i2.422

Abstract

Quality of Service (QoS) on Live Streaming has the main parameters, namely bandwidth, jitter, loss and delay, which are measured on the implementation of Wireless IP Camera based on Android Smartphone. The test tools used iperf and ping software, to capture data packets. The network design in this study uses Xonz Wireless IP Camera, wifi router, Server/Laptop and Android Smartphone to monitor or access the services provided. Surveillance/reconnaissance or surveillance by accessing live streaming can be done from anywhere as long as there is still an intranet network. wifi router provides DHCP service, Server/Laptop provides a Virtual Machine using MS Windows Server 2003 Operating System. Web Server is not installed on Real Machine but on Virtual Machine. The smartphone used has the Android Operating System version 4.4.2. IP Camera Xonz model XZ-12Z-HR/W has one major drawback that it can only be accessed via Internet Explorer Browser which can only run on MS Windows Operating System. Some applications that are already available on Google Play and installed on Android Smartphones cannot detect the Wireless IP Camera. The outcome or impact of this research is the creation of a simple Live Streaming application that can be accessed by all browsers on all platforms including Android Smartphones. Measurements were made using iperf and ping. The results showed that the Xonz IP Camera can still be used for mobile room monitoring as far as a maximum of about 20 m from the wifi router and still meets the standard QoS values ​​set by TIPHON and ITU-T G.114.
Analysis and Design of a Web-Based Marketing Information System with a CRM (Customer Relationship Management) Approach at Tenun Resti Sipirok Ofelius Laia; Jurisman Waruwu; Arisman Telaumbanua
Jurnal Mandiri IT Vol. 12 No. 1 (2023): July: Computer Science and Field.
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mandiri.v12i1.237

Abstract

Tenun Resti Sipirok is a company engaged in trading woven products such as Jas, Ulos, Souvenirs and other woven products. In marketing its products, Tenun Resti Sipirok still uses the shop as a marketing place, so that consumers who are interested in buying these products must come directly to the store where they are marketed. Not infrequently consumers are disappointed because the product they want to buy is not available which requires consumers to order in advance until the product is finished being produced. By designing and implementing a web-based marketing system with a CRM approach to Tenun Resti Sipirok, it is very helpful in the process of marketing products via the internet, such as selling and promoting products to consumers. This also has a positive impact on the consumer side, because consumers do not have to come directly to the marketing shop, but consumers can buy and order products through the website that is created and information about new products and promos is easy for consumers to get through the website page as well as via email messages.
Analysis and Design of a Web-Based Marketing Information System with a CRM (Customer Relationship Management) Approach at Tenun Resti Sipirok Ofelius Laia; Jurisman Waruwu; Arisman Telaumbanua
Jurnal Mandiri IT Vol. 12 No. 1 (2023): July: Computer Science and Field.
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mandiri.v12i1.237

Abstract

Tenun Resti Sipirok is a company engaged in trading woven products such as Jas, Ulos, Souvenirs and other woven products. In marketing its products, Tenun Resti Sipirok still uses the shop as a marketing place, so that consumers who are interested in buying these products must come directly to the store where they are marketed. Not infrequently consumers are disappointed because the product they want to buy is not available which requires consumers to order in advance until the product is finished being produced. By designing and implementing a web-based marketing system with a CRM approach to Tenun Resti Sipirok, it is very helpful in the process of marketing products via the internet, such as selling and promoting products to consumers. This also has a positive impact on the consumer side, because consumers do not have to come directly to the marketing shop, but consumers can buy and order products through the website that is created and information about new products and promos is easy for consumers to get through the website page as well as via email messages.
SISTEM INFORMASI PENJUALAN RUMAH BERBASIS WEB MENGGUNAKAN DATABASE MYSQL (STUDI KASUS CV. RUMAH IMPIAN) Waruwu, Jurisman; Harefa, Yusmei Paskah; Laia, Ofelius; Lase, Devi Chrisman
JURNAL TEKNOLOGI INFORMASI DAN KOMUNIKASI Vol 15 No 2 (2024): September
Publisher : UNIVERSITAS STEKOM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51903/jtikp.v15i2.882

Abstract

Perancangan dan pengimplementasian sistem informasi penjualan rumah berbasis web untuk CV Rumah Impian dengan database MySql. Fokus penelitian adalah analisis kebutuhan, desain, uji coba, evaluasi, dan pemeliharaan sistem. Hasilnya adalah sebuah sistem informasi penjualan rumah yang dapat disesuaikan dengan kebutuhan klien dan mudah digunakan. Studi ini menunjukkan bahwa penerapan sistem ini dapat membantu penjualan CV Rumah Impian.
PELATIHAN PENGGUNAAN FITUR MAIL MERGE DAN TABLE OF CONTENTS PADA APLIKASI MICROSOFT OFFICE WORD UNTUK SISWA/I SMK NEGERI 1 LOLOFITU MOI Waruwu, Jurisman; Laia, Ofelius; Gea, Nov Elhan; Lase, Devi Chrisman
Haga : Jurnal Pengabdian Kepada Masyarakat Vol 3 No 1 (2024): Haga: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/haga.v3i1.2012

Abstract

The training on the use of Mail Merge and Table of Contents features in Microsoft Office Word application at SMK Negeri 1 Lolofitu Moi aims to improve students' technical skills in managing documents. The training is designed to help students understand and apply these features in academic and professional contexts. Students were given in-depth understanding and hands-on practice on how to combine standard documents with external data using Mail Merge and how to create an automated table of contents using Table of Contents. The results of the training showed a significant improvement in students' skills, as demonstrated by their ability to complete practical assignments and school projects. The training not only added value to the students' technical competence but also prepared them for the challenges in the world of work.
Analisis Perbandingan Bahasa Pemrograman Untuk Menentukan Keprimaan Bilangan Menggunakan Teorema Fermat Ofelius Laia
TAMIKA: Jurnal Tugas Akhir Manajemen Informatika & Komputerisasi Akuntansi Vol 4 No 2(SEMNASTIK) (2024): TAMIKA: Jurnal Tugas Akhir Manajemen Informatika & Komputerisasi Akunt
Publisher : Universitas Methodist Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46880/tamika.Vol4No2(SEMNASTIK).pp64-67

Abstract

This study aims to compare the performance of several programming languages, namely PHP, Java, and Python, in determining the primality of numbers using Fermat's Theorem. The selection of programming languages is based on their popularity and efficiency in cryptographic algorithm implementation. The method used is a comparative experiment, with measurement parameters including execution time, memory consumption, and result accuracy. The results show that Java excels in execution efficiency with the fastest time, while PHP demonstrates the lowest memory consumption. Although Python is slower, all three programming languages produced accurate results in primality testing. This research concludes that Java is the best choice for applications requiring high speed, while PHP is more suitable for resource-limited applications. Future research is recommended to test more programming languages and use a larger number dataset.
Simple Synthesis of 4A Zeolite with the Addition of Al2O3 and Na2EDTA Compounds Dawolo, Januari; Telaumbanua, Putra Hidayat; O. Laia; N. K. Lase
Jurnal Sains Materi Indonesia Vol. 26 No. 2 (2025): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2025.4302

Abstract

4A zeolite complex derived from coal has been successfully synthesized through the preparation of fractionated samples, analyzed using atomic absorption spectrophotometry (AAS), resulting in a chemical composition of silica (SiO2) 24.78% and aluminum oxide (Al2O3) 29.60%. The fly ash produced from this fractionation is used as the base material for the synthesis of 4A zeolite. The fly ash is reacted with sodium hydroxide (NaOH) at room temperature, yielding a gel that is subsequently crystallized into 4A zeolite through a reflux process. The resulting zeolite crystals are then supplemented with Al2O3 and disodium dihydrogen ethylenediaminetetraacetate (Na2EDTA) as sources of aluminum to achieve a molar ratio of Si/Al = 1.42. Optimal quality 4A zeolite crystals were obtained from the synthesis of 5.9351 g of medium fraction fly ash, along with 1 g Al2O3, 4 g NaOH, and 0.569 g Na2EDTA. Infrared (IR) characterization results indicate that the optimal 4A zeolite from medium fraction fly ash is characterized by crystals with the addition of 1.5 g of Al2O3. Wide absorption bandwidths are typically caused by large spectral line widths, which can occur if a significant amount of energy is absorbed by various vibrational modes, assuming that excess Al2O3 leads to the formation of functional groups that contribute to the same band. A peak at a wavelength of 564 cm-1 indicates double ring stretching vibrations, while a peak at 661 cm-1 indicates symmetric stretching vibrations of the zeolite framework. Meanwhile, peaks at wavelengths of 3460.86 cm-1 and 974.71 cm-1 indicate detected O-H absorption
Analisis Efektivitas Alat Forensik Data Carving Dalam Pemulihan Data Digital Menggunakan Backtrack OS Lase, Devi Chrisman; Waruwu, Eliyunus; Laia, Ofelius; Waruwu, Jurisman; Gea, Nov Elhan
JATISI Vol 12 No 1 (2025): JATISI (Jurnal Teknik Informatika dan Sistem Informasi)
Publisher : Universitas Multi Data Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35957/jatisi.v12i1.11152

Abstract

Forensik digital memiliki peran krusial dalam investigasi kejahatan siber, terutama dalam pemulihan data yang hilang atau terhapus. Salah satu metode yang digunakan dalam proses ini adalah data carving, yaitu teknik ekstraksi file dari media penyimpanan yang mengalami fragmentasi atau kerusakan. Penelitian ini bertujuan untuk menganalisis efektivitas tiga alat data carving pada BackTrack OS, yakni Scalpel, Foremost, dan PhotoRec, dengan mempertimbangkan aspek kecepatan, akurasi, dan kemampuan menangani fragmentasi file. Pendekatan eksperimental diterapkan dengan menggunakan tiga jenis media penyimpanan (USB drive, hard disk, dan kartu SD) yang telah melalui simulasi kerusakan data. Hasil penelitian menunjukkan bahwa Scalpel memiliki keunggulan dalam kecepatan pemulihan, Foremost menawarkan keseimbangan antara efisiensi dan akurasi, sedangkan PhotoRec unggul dalam pemulihan data dari media yang mengalami kerusakan parah. Temuan ini menegaskan bahwa tidak ada satu alat yang sepenuhnya unggul dalam semua aspek, sehingga pemilihannya harus disesuaikan dengan kebutuhan investigasi. Hasil penelitian ini diharapkan dapat menjadi referensi bagi praktisi forensik digital dalam menentukan alat pemulihan data yang optimal berdasarkan karakteristik kasus yang dihadapi.
The Urgency of Technology And Information Technology (ICT) Development in Realizing The Transformation of Advanced Nias Regency in The Era of Civil Society 5.0 and Industrial Revolution 4.0 Ndraha, Ayler Beniah; Waruwu, Eliyunus; Lase, Delipiter; Laia, Ofelius; Manalu, Darwis Robinson; Telaumbanua, Elisati Kurniawan; Zega, Asokhiwa
METHOMIKA: Jurnal Manajemen Informatika & Komputerisasi Akuntansi Vol. 9 No. 1 (2025): METHOMIKA: Jurnal Manajemen Informatika & Komputersisasi Akuntansi
Publisher : Universitas Methodist Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46880/jmika.Vol9No1.pp160-168

Abstract

Research This research discusses the significant impact of e-government implementation in improving efficiency of public administration and community participation in the era of digital disruption. digital disruption era. The focus is on analyzing the development and challenges of integrating information technology integration in governance to create transparent and accountable public services. transparent and accountable public services. This research aims to analyze the influence and benefits of e-government implementation in improving government efficiency, public service transparency, and participation. Government efficiency, public service transparency, and public participation in Indonesia, as well as identifying the barriers and challenges of e-government implementation. Participation in Indonesia, as well as identifying barriers and challenges faced in its implementation. in its implementation. This research uses a comprehensive literature review method method to integrate various perspectives and empirical findings. This approach includes topic exploration, collection of relevant literature, and analysis and synthesis of data to answer the research questions. In addition, SWOT analysis was used to evaluate the condition of e-government in Nias Regency and develop improvement strategies that include Nias Regency and develop improvement strategies that include strengthening strengths, utilizing opportunities, reducing weaknesses, and addressing threats. The research This research shows that the implementation of information and communication technology (ICT) in Nias Regency is still at the maturation stage, with strong local government commitment but faced with commitment but faced with challenges of geography, limited infrastructure and infrastructure, and human resource competencies. SWOT analysis identified potential development potential and opportunities, as well as threats and weaknesses that need to be addressed through collaboration with various stakeholders. through collaboration with various stakeholders. Improving ICT in Nias Regency requires an integrated strategy that includes developing infrastructure, improving human resource competencies, and collaboration with the private sector, to realize the transformation of Nias Regency towards an effective and efficient e-government. effective and efficient e-government.
Simulasi Teknik Phishing terhadap Situs Tiruan Facebook dan SIAKAD UNIRAYA Menggunakan Zphisher dan Ngrok Boy Setyawan Zalukhu; Fredin Samohouni Zai; Elena Dementieva Lase; Rosania Waruwu; Markus Prayoga Telaumbanua; Ofel, Ofelius Laia
Jurnal Komputer Teknologi Informasi Sistem Informasi (JUKTISI) Vol. 4 No. 1 (2025): Juni 2025
Publisher : LKP KARYA PRIMA KURSUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62712/juktisi.v4i1.390

Abstract

Penelitian ini bertujuan untuk mensimulasikan serangan phishing menggunakan dua alat populer, yaitu Zphisher dan Ngrok, dalam konteks edukatif. Simulasi dilakukan melalui pembuatan situs tiruan dari Facebook dan Sistem Informasi Akademik Universitas Raya (SIAKAD UNIRAYA), kemudian diuji untuk menangkap data login fiktif. Zphisher digunakan untuk menghasilkan situs phishing berbasis template secara otomatis, sedangkan Ngrok dikombinasikan dengan Social-Engineer Toolkit (SET) untuk membangun halaman phishing yang lebih fleksibel dan dapat dikustomisasi. Hasil eksperimen menunjukkan bahwa kedua alat mampu meniru tampilan situs asli secara efektif dan berhasil menangkap informasi penting seperti alamat IP, nama pengguna (username), dan kata sandi (password). Dari sisi penggunaan, Zphisher lebih unggul dalam kemudahan dan kecepatan implementasi, sementara Ngrok memberikan tingkat kontrol dan keamanan lebih tinggi dalam pengujian tertutup. Seluruh proses dilakukan di lingkungan terbatas dan tidak menyebarkan tautan secara publik, serta tidak menggunakan data asli untuk menjaga etika penelitian. Penelitian ini memberikan wawasan praktis dalam mengenali teknik phishing serta menekankan pentingnya menjaga keamanan data pribadi di era digital saat ini.
Co-Authors Agusdamai Lase Aperius Gea Arisman Telaumbanua Asokhiwa Zega Ayler Beniah Ndraha Boy Setyawan Zalukhu Buulolo, Santi Trimurni Carolina Sayangi Cahaya Waruwu Christine Jenny Puspita Zega Darwis Robinson Manalu Darwis Setiawan Waruwu Della Yunika Zebua Delvin Krisnawati Lahagu Deprianus Zalukhu Dian Maharani Bu’ulolo Dorthea Elvita Harefa Elena Dementieva Lase ELIYUNUS WARUWU Elvi Ningsih Telaumbanua Ester Ratna Cahyani Zega Famoboro Gulo Fasrian Mauren Niella Hura Fatarolius Harefa Fati Gratianus Nafiri Larosa Febriaman Laoli Fikrah Kristo Fotriman Waruwu Fredin Samohouni Zai Gea, Nov Elhan Gulo, Famoboro Halawa, Serius Harefa, Yusmei Paskah Hendrik Trymedia Laoli Ivataro Laoli Januari Dawolo Juang Anjes Putra Telaumbanua Jurisman Waruwu Kesadaran Zebua Kevin Rewardi Harefa Lase, Delipiter Lase, Devi Chrisman Lustantri Mendrofa Mardin Zai Markus Prayoga Telaumbanua Mendrofa, Lustantri N. K. Lase Nini Carlina Lase Putra Barato Telaumbanua Putra Hidayat Telaumbanua Rosania Waruwu Santi Trimurni Buulolo Serius Halawa Telaumbanua, Elisati Kurniawan Yustri Mei Mendrofa