The use of digital information and web technologies is now essential to all our lives on a daily basis. In particular, web technologies that enable easy access to digital information in all its forms and regardless of the user's purpose are extremely important. This book presents papers from the 7th International Conference on Applications of Digital Information and Web Technologies (ICADIWT 2016), held in Keelung City, Taiwan, in March 2016. The conference, which has been organized since 2008, is aimed at building the infrastructure necessary for the large-scale development of web technologies, and attracts participants from many countries who attend the conference to demonstrate and discuss their research findings. The 19 full papers presented at the conference have been arranged into 5 sections: networking; fuzzy systems; intelligent information systems; data communication and protection; and cloud computing. Subjects covered fall under areas such as Internet communication, technologies and software; digital communication software and networks; the Internet of things; databases and applications; and many more. The book will be of interest to all those whose work involves the application of digital information and web technologies.