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All Journal Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi)
Kardiyasa, Komang Agus Putra
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Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management

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Assessing the Effectiveness of COBIT Implementation in Improving IT Operational Performance in Indonesian Enterprises Kardiyasa, Komang Agus Putra; Putra, Anak Agung Adi Wiryya
Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) Vol 10 No 1 (2026): JANUARY 2026
Publisher : Lembaga Otonom Lembaga Informasi dan Riset Indonesia (KITA INFO dan RISET)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/jtik.v10i1.5081

Abstract

The impact of COBIT implementation on IT operational efficiency, using a mixed- method approach that focuses on quantitative analysis. A total of 387 valid respondents were obtained through stratified random sampling targeting IT professionals from various industry sectors. This study measured improvements in cost reduction, service response time improvement, and security incident reduction. The results indicate that COBIT implementation significantly correlates with an average operational cost reduction of 28.5%, a 34.2% improvement in service response time, and a 41.7% decrease in security incidents. Organizations with a higher COBIT maturity level (Level 4-5) showed better performance compared to Level 2-3. The DSS domain had the highest impact on efficiency (r = 0.847). The developed predictive model explains 74.3% of the variance in operational efficiency. This research offer practical insights for organizations aiming to enhance IT performance through structured governance. The study provides actionable recommendations, including prioritizing DSS processes, conducting maturity assessments, and adopting phased implementation strategies to optimize COBIT adoption.
A Systematic Literature Review on Quality of Service in 5G Cellular Networks: Challenges and Opportunities in the Indonesian Context Kardiyasa, Komang Agus Putra; Putra, Anak Agung Adi Wiryya; Suprianingsih, Ni Wayan
Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) Vol 10 No 2 (2026): APRIL 2026
Publisher : Lembaga Otonom Lembaga Informasi dan Riset Indonesia (KITA INFO dan RISET)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/jtik.v10i2.5534

Abstract

The fifth-generation (5G) network promises ultra-fast connectivity, massive device density, and low latency, yet ensuring reliable Quality of Service (QoS) remains a major challenge. This study conducts a Systematic Literature Review (SLR) of 35 peer-reviewed articles published between 2020–2023, sourced from IEEE Xplore, Scopus, and Google Scholar. The review identifies key QoS mechanisms such as network slicing, resource allocation, and latency management, while challenges persist in scalability, interoperability, and security. Emerging trends highlight the growing role of Artificial Intelligence (AI), Machine Learning (ML), and Software-Defined Networking (SDN) for QoS optimization. In Indonesia, regulatory readiness, spectrum allocation, and uneven infrastructure present both challenges and opportunities. The study contributes by synthesizing recent findings, outlining research gaps, and offering practical insights for policymakers, operators, and researchers.
Co-Authors I Nyoman Gunantara Made Sudarma Putra, Anak Agung Adi Wiryya Suprianingsih, Ni Wayan