This volume presents human-computer interaction technologies and their applications. It includes 28 technical papers covering a range of application areas, such as speech processing and interfaces, remote data access by multisensors, data fusion, medical surveillance, telephone and car applications, air traffic and train control systems, monitoring systems, and decision support. Human comfort and security aspects in dealing with computers are discussed, and implemented systems using new interaction technologies are presented. The book is application-oriented rather than theoretical and addresses new constructive aspects of human-computer interaction.