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All Journal Techno.Com: Jurnal Teknologi Informasi Teika CogITo Smart Journal Jurnal Ilmiah Matrik Jurnal Riset Informatika Jurnal Informasi dan Teknologi Journal Cerita: Creative Education of Research in Information Technology and Artificial Informatics JOURNAL OF INFORMATION SYSTEM RESEARCH (JOSH) Journal of Computer System and Informatics (JoSYC) International Journal of Engineering, Science and Information Technology Global South Review Journal Of Business, Finance, and Economics (JBFE) KERNEL: Jurnal Riset Inovasi Bidang Informatika dan Pendidikan Informatika Malcom: Indonesian Journal of Machine Learning and Computer Science Jikom: Jurnal Informatika dan Komputer Servitium Smart Journal CSRID
George Morris William Tangka
Universitas Klabat
Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Tata Kelola Teknologi Informasi Menggunakan Framework COBIT 2019 Pada PT. Kobexindo Tractor Tbk. Lumingkewas, Cherry; Mambu, Joe Yuan; Tangka, George Morris William
Techno.Com Vol. 23 No. 4 (2024): November 2024
Publisher : LPPM Universitas Dian Nuswantoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62411/tc.v23i4.11708

Abstract

Tata kelola Teknologi Informasi (TI) adalah kerangka kerja yang digunakan organisasi untuk mengelola dan mengendalikan sumber daya TI secara efektif, dengan tujuan memaksimalkan nilai bisnis. PT. Kobexindo Tractor TBK menghadapi tantangan dalam mengoptimalkan manajemen TI mereka, khususnya dalam pengelolaan data penting. Penelitian ini bertujuan untuk menerapkan kerangka COBIT 2019 guna meningkatkan tata kelola TI di PT. Kobexindo Tractor TBK, sehingga layanan data kritis dapat dikelola secara efisien. Temuan menunjukkan bahwa perusahaan belum melakukan penilaian menyeluruh terhadap tata kelola TI dan menghadapi tantangan dalam manajemen data pesanan dan informasi stok. PT. Kobexindo Tractor TBK memerlukan proses tata kelola TI yang lebih terstruktur untuk memastikan penggunaan teknologi yang efektif dan efisien dalam mencapai tujuan bisnis. Proses tinjauan pustaka mengidentifikasi kesenjangan dalam penelitian saat ini, memberikan dasar untuk penelitian yang lebih komprehensif. Setelah analisis tujuan BAI05 dan BAI11, ditemukan hasil yang berbeda. Pada BAI05, pertanyaan mencapai level 2 dengan 75%, di bawah 85%. Demikian juga, pada BAI11, pertanyaan mencapai level 2 dengan 66%. Dengan temuan ini, penelitian ini didukung landasan teoretis yang kuat, memastikan analisis yang mendalam terhadap masalah tata kelola TI.   Kata kunci: Tata Kelola Teknologi Informasi, COBIT 2019, Manjemen Informasi
Information Technology Governance Using the COBIT 2019 Framework at PT Bank Pembangunan Daerah Papua Lompoliu, Erienika; William Tangka, George Morris
International Journal of Engineering, Science and Information Technology Vol 4, No 4 (2024)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v4i4.609

Abstract

Effective and efficient information technology (IT) management is crucial for the banking industry, especially for PT Bank Pembangunan Daerah Papua (BPDP), which seeks to reinforce its role within the Papua region. Leveraging the COBIT 2019 framework, BPDP aims to enhance IT governance, addressing operational efficiency, information security, and regulatory compliance. This study highlights BPDP's strategic priorities, such as revenue growth, fostering innovation, and customer service excellence, which are essential for sustaining competitive advantage amidst regional geopolitical challenges. By identifying these key priorities, the research uncovers critical areas of improvement, including IT investment optimization, mitigation of regulatory and security risks, and solidifying IT's strategic role in driving business growth. To evaluate BPDP's IT governance maturity, this study applies COBIT 2019's ten design factors, from enterprise goals and risk profiles to IT-related issues, compliance needs, and technology adoption strategies. The findings underscore gaps in risk management, project lifecycle oversight, and resource allocation, offering actionable insights for governance improvement. Enhanced IT integration can support BPDP's larger objectives of sustainable growth and economic development within the region. Furthermore, the study demonstrates that a well-structured governance framework strengthens BPDP's operational efficiency, builds customer trust, and ensures alignment with regulatory standards and evolving technology landscapes. By adopting these governance recommendations, BPDP can achieve long-term success and secure its position as a prominent financial institution in Papua, thus reinforcing its commitment to regional economic growth and compliance with national regulatory standards.
Desain UI/UX Aplikasi Unklab Mobile Student Dengan Metode Design Thinking Biya, Antares Nathan Andrew; Kolibu, Mario Jonatan; Mambu, Joe Yuan; Tangka, George Morris William
Journal Cerita: Creative Education of Research in Information Technology and Artificial Informatics Vol 10 No 2 (2024): Journal CERITA : Creative Education of Research in Information Technology and Ar
Publisher : UNIVERSITAS RAHARJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33050/cerita.v10i2.3362

Abstract

The Unklab Mobile Student application is an essential platform for Universitas Klabat students to access various academic services. However, the app currently suffers from shortcomings in features and design, leading to user dissatisfaction. This research employs a Design Thinking approach to redesign the application to be more responsive, intuitive, and visually appealing. Through a series of research methods, including interviews, questionnaires, observation, and data analysis, we gain a comprehensive understanding of user needs and existing problems. The analysis results are then used to formulate improved solutions, which include the development of efficient search features, a more intuitive layout, and enhanced design responsiveness. The resulting app prototype incorporates 17 features and is subjected to usability testing. The results demonstrate a significant increase in user satisfaction, with a high success rate of 60 in each tested task, indicating positive outcomes. This confirms the effectiveness of the Design Thinking approach in designing an application that better meets user needs.
Optimizing IT Governance in BTS.id: A COBIT 2019-Based Analysis of Design Factors Tangka, George Morris William; Lompoliu, Erienika
MALCOM: Indonesian Journal of Machine Learning and Computer Science Vol. 5 No. 2 (2025): MALCOM April 2025
Publisher : Institut Riset dan Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57152/malcom.v5i2.1997

Abstract

Effective IT governance is critical for organizations to align technology with business objectives while ensuring risk management, compliance, and operational efficiency. As a technology-driven company, BTS.id faces challenges in managing IT risks, optimizing governance structures, and ensuring seamless alignment between IT initiatives and business strategy. This study analyzes IT governance implementation at BTS.id using the COBIT 2019 framework, focusing on assessing the organization's governance maturity level and identifying key design factors that influence IT governance effectiveness. The research employs document analysis, interviews, and surveys with key stakeholders to evaluate governance and management objectives, design factors, and capability levels. The findings indicate that while BTS.id has implemented IT governance practices, gaps remain in achieving an optimal governance structure. The highest priority areas include structured IT change management (BAI07), enterprise architecture (APO03), and project management (BAI11, BAI02), while risk management (APO12) and performance monitoring (MEA01) play a crucial supporting role. However, lower-priority governance objectives highlight areas for improvement, particularly in security management, vendor relationships, and compliance monitoring. The study underscores the importance of a structured approach to IT governance, emphasizing continuous performance monitoring, enhanced risk management, and strategic IT alignment.
Analysis of User Satisfaction Level of Google Application Classroom Using the ECUS Method Putra, Edson Yahuda; Lahamendu, Irene Gloria; Ngangk, Stivia Yuliefri Lulij; Adam, Stenly Ibrahim; Tangka, George Morris William
CSRID (Computer Science Research and Its Development Journal) Vol. 17 No. 2 (2025): Juni 2025
Publisher : LPPM Universitas Potensi Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22303/csrid-.17.2.2025.217-228

Abstract

Despite wide adoption during the COVID‑19 pandemic, Google Classroom’s long‑term acceptance in Indonesian higher education remains under‑examined. This study measures end‑user satisfaction using the five‑factor End‑User Computing Satisfaction (EUCS) framework. A cross‑sectional survey captured 247 valid responses from undergraduate students at Universitas Klabat who had used Google Classroom for at least one semester. Twenty Likert‑scaled items (4 per EUCS dimension) were adapted from Doll & Torkzadeh (1988) and checked for reliability (Cronbach’s α) and validity. Multiple‑linear regression assessed the partial effect of each EUCS factor on overall satisfaction, while descriptive statistics profiled satisfaction levels. Four dimensions—Content (β = 0.299, p < 0.001), Ease of Use (β = 0.268), Format (β = 0.182), and Timeliness (β = 0.222)—significantly predict satisfaction (Adj. R² = 0.682). Accuracy (β = 0.009, p = 0.841) is non‑significant, likely due to low internal consistency (α = 0.429). Overall, 69.6 % of respondents report being satisfied or very satisfied with Google Classroom. Content richness, intuitive interface, presentation quality, and timely feedback drive student satisfaction, whereas perceived accuracy warrants instrument refinement. Findings inform LMS developers and university decision‑makers on prioritised enhancement areas.
Connecting Tutors and Students: A Mobile Application Designed with Design Thinking Mambu, Joe Yuan; Lakat, Junior; Tangka, George Morris William
CogITo Smart Journal Vol. 10 No. 2 (2024): Cogito Smart Journal
Publisher : Fakultas Ilmu Komputer, Universitas Klabat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31154/cogito.v10i2.814.533-547

Abstract

The rapid advancement of information technology has transformed education globally, but in regions like Manado, Indonesia, the lack of platforms connecting private tutors with students creates inefficiencies. Students face difficulties in finding affordable tutoring services, while tutors struggle with marketing and building trust. This study aims to design and evaluate the user interface (UI) and user experience (UX) of a mobile application addressing these challenges using the Design Thinking methodology. Through five stages—Empathize, Define, Ideate, Prototype, and Test—key pain points were identified, including scheduling inefficiencies, trust issues, and geographical constraints. Solutions like flexible scheduling, integrated promotional tools, and rating systems were proposed. Prototypes, developed using Figma, were tested through usability evaluations across four scenarios. Key findings include: Scenario 3 (notifying a tutor) showed optimal performance with a task completion time of 2 seconds, no miss-clicks, and a usability score of 100; Scenario 1 (finding courses via maps) had a 95 usability score with an 8% miss-click rate; Scenario 2 (finding schedules) showed a 25% miss-click rate and a usability score of 80; and Scenario 4 (checking notifications) faced significant challenges, with a 50% miss-click rate and a usability score of 75. These results underscore the effectiveness of Design Thinking in addressing the needs of users and provide valuable insights for improving educational platforms in underserved regions. The findings suggest that while the mobile app holds great potential for improving educational access, further refinements are needed, particularly in navigation and notification features.
Sentiment Analysis and Topic Detection on Post-Pandemic Healthcare Challenges: A Comparative Study of Twitter Data in the US and Indonesia Tangka, George Morris William; Chrisanti, Ibrena Reghuella; Waworundeng, Jacquline; Maringka, Raissa Camilla; Sandag, Green Arther
CogITo Smart Journal Vol. 10 No. 2 (2024): Cogito Smart Journal
Publisher : Fakultas Ilmu Komputer, Universitas Klabat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31154/cogito.v10i2.819.561-579

Abstract

This study examines public sentiment and key topics in Twitter discussions regarding the COVID-19 vaccine and the Omicron variant in the US and Indonesia. The importance of this research lies in understanding people's changing views on vaccination, especially in light of new virus variants. Using sentiment analysis with VADER and topic modeling with Latent Dirichlet Allocation (LDA), this research analyzes 637,367 tweets from the US and 91,679 tweets from Indonesia collected over two months from January 21 to February 21, 2022. The results reveal that US discussions on vaccines are predominantly positive, while those on Omicron are mostly negative. In contrast, discussions in Indonesia are largely neutral, followed by positive sentiment. Additionally, five main topics were identified for each country, with the US showing a broader range of vaccine-related discussions. These findings suggest that while the vaccine is seen as a source of hope in both countries, factors such as literacy, socioeconomic status, and education contribute to negative sentiment and vaccine resistance.
MRI Image Analysis for Alzheimer’s Disease Detection Using Transfer Learning: VGGNet vs. EfficientNet Sandag, Green Arther; Djamal, Eleonora; Tangka, George Morris William; Taju, Semmy Wellem
CogITo Smart Journal Vol. 10 No. 2 (2024): Cogito Smart Journal
Publisher : Fakultas Ilmu Komputer, Universitas Klabat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31154/cogito.v10i2.836.580-592

Abstract

This study focuses on developing an effective Alzheimer's disease (AD) classification model using MRI images and transfer learning. This research targets individuals aged 65 and above who are affected by the predominant form of dementia and utilizes an Alzheimer's Disease MRI Image dataset from Kaggle. Model selection involved options like EfficientNetB1, B3, B5, B7, VGG16, and VGG19. Two scenarios with distinct batch sizes (10 and 20) were explored in the model creation process. Evaluation, using a confusion matrix, determined that the EfficientNetB5 model yielded the highest accuracy at 99.22%, surpassing other models such as EfficientNetB1, B3, B7, VGG16, and VGG19. Notably, this research highlights the superior performance of EfficientNet over VGGNet in transfer learning for analyzing Alzheimer's disease MRI images. The study concludes with the implementation of a simple web system for testing model outcomes. Overall, the investigation underscores the efficacy of Convolutional Neural Network (CNN) modeling in Alzheimer's disease analysis and identifies EfficientNetB5 as the optimal model for accurate classification.
Pemilihan Pemasok Bahan Makanan Kafetaria Universitas XYZ menggunakan Best Worst Method Tangka, George Morris William; Lompoliu, Erienika
KERNEL: Jurnal Riset Inovasi Bidang Informatika dan Pendidikan Informatika Vol 6, No 1 (2025)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.kernel.2025.v6i1.7914

Abstract

Ketidakstabilan mutu bahan dan keterlambatan pasok—tercermin pada food-waste ±8 % serta denda pengiriman Rp 12 juta per tahun—menjadi persoalan utama rantai pasok kafetaria Universitas XYZ. Penelitian ini mengatasi masalah tersebut dengan menyusun model seleksi pemasok berbasis Best Worst Method (BWM). Tahapan meliputi: (1) penetapan lima kriteria kunci bersama tiga pengambil-keputusan; (2) penyusunan vektor Best→Others dan Others→Worst skala 1–9; (3) pemrograman linier untuk memperoleh bobot optimal dan memverifikasi konsistensi (CR = 0,08 ≤ 0,10); serta (4) perhitungan utilitas empat calon pemasok dan uji sensitivitas ±10 %. Hasilnya menunjukkan Kualitas Kesegaran (0,35), Keandalan Pengiriman (0,25), dan Kepatuhan Keamanan Pangan (0,20) sebagai determinan dominan, sementara pemasok Alpha menempati peringkat pertama dengan skor utilitas ternormalisasi 0,825; urutan tidak berubah pada variasi bobot, menegaskan robust­ness keputusan. Temuan ini menegaskan BWM sebagai kerangka pengambilan keputusan yang ringkas, konsisten, dan efektif untuk menyelesaikan masalah seleksi pemasok multikriteria di lingkungan layanan pangan kampus.
Perancangan Desain UI/UX Aplikasi Manajemen Keuangan Menggunakan Metode Design Thinking Tangka, George William Morris; Lompoliu, Erienika Meiling
Journal of Information System Research (JOSH) Vol 5 No 4 (2024): Juli 2024
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/josh.v5i4.5680

Abstract

Money is widely accepted and trusted by society as a medium of payment or transaction, facilitating the exchange of goods and services. In everyday life, individuals face daily expenses that need effective management. The lack of awareness and knowledge about the importance of financial planning and management among students and young adults leads to significant financial problems. This study aims to design a financial management application with a focus on user-friendly and enjoyable UI/UX design. The application will help users manage their income, expenses, and savings efficiently. Key features include daily transaction records, bill payment reminders, expense analysis, and financial tips to achieve financial goals. The goal is to enable users to handle their finances more wisely. By applying the Design Thinking method, the research addresses complex financial management issues innovatively and comprehensively. Results from usability testing indicate that screens like the Select Category achieved a perfect usability score of 100, while others like the Expense Pages showed recurring issues with high misclick rates, highlighting areas for improvement. Overall, the average usability score was 75, suggesting room for enhancement.
Co-Authors Biya, Antares Nathan Andrew Cherry Lumingkewas Chrisanti, Ibrena Reghuella Delviolin, Ellie Ophelia Djamal, Eleonora Edson Yahuda Putra Edwin Melky Lumingkewas Erienika Meiling Lompoliu Fanny Soewignyo Green Arther Sandag Green Ferry Mandias, Green Ferry Ivanna Junamel Manoppo Izaac, Bryan Vallentino Jacquline Waworundeng Joe Yuan Mambu JUNIOR LAKAT Kolibu, Mario Jonatan Lahamendu, Irene Gloria Lidya Chitra Laoh Maringka, Raissa Ngangk, Stivia Yuliefri Lulij Nurwijayanti Raissa Camila Maringka Semmy Wellem Taju Sondakh, Debby Erce Stenly Ibrahim Adam Stenly Richard Pungus Tonny Irianto Soewignyo Wilsen Grivin Mokodaser