This book constitutes the refereed joint proceedings of four co-locatedinternational conferences, concertedly held in Miyazaki, Japan, in June2010. The papers in this volume were selected based on their scoresobtained from the independent reviewing processes at particularconferences, and their relevance to the idea of constructing hybridsolution to address the real-world challenges of IT. It provides achance for academic and industry professionals to catch up on recentprogress in the related areas.The 49 revised full papers presented were carefully reviewed andselected during two rounds of reviewing and improvement from more than1000 initial submissions. The papers emanate from the four followinginternational conferences: Information Security and Assurance (ISA2010), Advanced Communication and Networking (ACN 2010), AdvancedScience and Technology (AST 2010), and Ubiquitous Computing andMultimedia Applications (UCMA 2010). This volume focuses on variousaspects of advance