Название: Quality Engineering: Quality of Communication Technology Systems
Автор: Sebastian Moller
Издательство: Springer
Год: 2023
Страниц: 202
Язык: английский
Формат: pdf (true)
Размер: 10.2 MB

The notion of quality and usability has gained a prominent importance in information and communication technology as well as in Computer Science. In all phases of planning, design, implementation, and optimization of technical systems and services, quality aspects must be taken into account so that their users can experience optimal quality and usability. In this book, the quality and usability of communication technology systems will be fundamentally addressed. Therefore, the necessary terms are first introduced, and the fundamentals of psychophysics (i.e., the relationship between physical quantities and human perceptions) and psychometrics (i.e., the measurement of perceptual quantities) are established. Based on this, the cycle of human-oriented system development, known as usability engineering, is presented. The measurement and prediction of quality and usability are then illustrated with the help of practical examples of communication engineering systems. In particular, systems for information transmission (telephony, Internet-based voice, and video transmission), speech dialog systems, and multimodal dialog systems are discussed. Finally, models for estimating quality and usability in the development phase of such systems are presented. Thus, the topic of quality engineering, i.e., system development that consistently aims at optimal quality, comes full circle.

Название: Изучаем VoIP-движок Mediastreamer2
Автор: Пластов И.В.
Издательство: Интернет-издание
Год: 2020 (Версия 1.2)
Страниц: 124
Язык: русский
Формат: pdf
Размер: 10,9 MB

Книга освещает вопросы обработки медиа и стриминга с помощью библиотеки Mediastreamer2. Материал книги позволяет изучить Mediastreamer2 и применить эти знания на практике. Она написана так, что способствует погружению в технологию Data Flow читателя не обладающего глубокими знаниями о VoIP. Требуются базовые навыки программирования на Си.