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All Journal Djtechno: Jurnal Teknologi Informasi Journal of Information Technology, Computer Engineering and Artificial Intelligence (ITCEA)
Nanda Dwi Kurniawan
Universitas Semarang
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management

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Exploring User Experiences of Chat GPT and Google Gemini AI : A SUS and EUCS Approach Fausta Rizky Abriansah; Nanda Dwi Kurniawan; Praditya Rendi Ferdian; Daffa Nurin Nabil Ma'arif; Azmi Maulana Firdaus; Pratama Angga
Journal of Information Technology, Computer Engineering and Artificial Intelligence (ITCEA) Vol. 1 No. 2 (2024): Journal of Information Technology, Computer Engineering and Artificial Intellig
Publisher : Redtech Putra Benua

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Abstract

This study evaluates user experience and satisfaction of two AI platforms, Chat GPT and Google Gemini, using the System Usability Scale (SUS) and End-User Computing Satisfaction (EUCS) approaches. The study involved 78 respondents from diverse backgrounds who provided evaluations based on five main dimensions of usability (Learnability, Efficiency, Memorability, Error, Pleasantness) and five dimensions of user satisfaction (Content, Accuracy, Format, Ease of Use, Timeliness). The results show that both platforms achieved a "Satisfied" category with an average usability and satisfaction score above 3.75. The lowest scores were recorded in Error and Timeliness variables, while Learnability and Format showed the highest scores. This study also revealed a significant positive correlation between usability and user satisfaction, providing recommendations for improvements in Error and Timeliness areas. These findings offer valuable insights for developing more user-friendly and responsive AI platforms in the future. 
PENENTUAN SUPPLIER TERBAIK MENGGUNAKAN METODE MOORA DAN TOPSIS DENGAN PEMBOBOTAN ENTROPY Nanda Dwi Kurniawan; Saifur Rohman Cholil
Djtechno: Jurnal Teknologi Informasi Vol 6, No 1 (2025): April
Publisher : Universitas Dharmawangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46576/djtechno.v6i1.6091

Abstract

Pemilihan supplier merupakan aspek kritis dalam keberlangsungan operasional bisnis, termasuk bagi Toko Kelontong Dua Putra yang selama ini menggunakan pendekatan subjektif dalam menentukan mitra suppliernya. Metode penilaian yang tidak sistematis ini berpotensi menimbulkan berbagai permasalahan seperti keterlambatan pengiriman, kualitas produk yang tidak konsisten, dan hambatan operasional lainnya. Untuk mengatasi hal tersebut, penelitian ini mengusulkan pendekatan ilmiah menggunakan metode MOORA dan TOPSIS dengan pembobotan Entropy guna menghasilkan penilaian yang lebih objektif. Kriteria penilaian meliputi harga, jarak, pelayanan, ketersediaan stok, dan kualitas barang, yang selanjutnya digunakan untuk melakukan perangkingan alternatif supplier. Hasil penelitian menunjukkan konsistensi pada kedua metode, dengan alternatif A1 teridentifikasi sebagai supplier terbaik, memperoleh skor 0,059 pada MOORA dan 0,905 pada TOPSIS, yang mengindikasikan potensi signifikan dalam optimalisasi proses pemilihan supplier.
Co-Authors Azmi Maulana Firdaus Daffa Nurin Nabil Ma'arif Fausta Rizky Abriansah Praditya Rendi Ferdian Pratama Angga Buana Saifur Rohman Cholil