Noun
(uncountable) The technical discipline of recording and producing sound.
Sound engineering has progressed greatly since the early days of the phonograph.
(less frequently) Engineering which is sound in the sense of being reliable.
This project is important, and must be based in sound engineering.
Software engineering is the establishment and use of sound engineering principles to obtain economically software that is reliable and works on real machines efficiently. Friedrich Bauer
Models are used essentially for evaluation and prediction purposes as well as for the analysis and study of the different parts of the system so that the systems engineer or designer may arrive at sound engineering decisions regarding the system design. Harold Chestnut