Communications in Computer and Information Science

This book constitutes the refereed proceedings of the 7th International Conference on Applied Technologies, ICAT 2025, held in Samborondón, Ecuador, during November 26–28, 2025.The 25 full papers presented in this volume were carefully reviewed and selected from 95 submissions.These papers were organized into the following topical sections: AT for Engineering Applications; Communication; Computing; e-Learning;  Electronics; Technology Trends; and Intelligent Systems.