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What does "sound engineering" mean in this context: "Establishment and use of sound engineering principles to obtain economically software that is reliable and works on real machines efficiently. (Fritz Bauer)"?

The definition above is for software engineering. However, the word "sound" used here definitely is not engineering for audio.

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closed as general reference by Hugo, Matt E. Эллен, kiamlaluno, MrHen, Marthaª Dec 8 '11 at 16:40

This question is too basic; it can be definitively and permanently answered by a single link to a standard internet reference source designed specifically to find that type of information.If this question can be reworded to fit the rules in the help center, please edit the question.

Welcome to EL&U. Questions here are expected to show some research and this is likely to be closed because you can find the different definitions of sound in any dictionary. – Hugo Dec 5 '11 at 5:57
@Hugo: I disagree that this is a general reference. "Sound engineering" really would be ambiguous between "sound" = "audio" and "sound" = "reliable". "Sound engineering principles" is an established phrase, but it would be easy to miss this and just lock up "sound" or "sound engineering". – Colin Fine Dec 5 '11 at 12:49
@ColinFine: But the context is clearly given as: The definition above is for software engineering. However, the word "sound" used here definitely is not engineering for audio. So we're after some other non-audio definition of sound that can be looked up in a dictionary. And the three given answers are pretty much general reference answers. – Hugo Dec 5 '11 at 12:56
up vote 5 down vote accepted

The first definition of sound in most dictionaries has to do with something auditory, from the Middle English soun or Old French son. The second involves things that are free from defect or healthy, from the OE gesund. (Ref: The Free Dictionary).

The writer is referring to the latter, namely engineering practices that are free from defect, trustworthy, marked by good judgement, or compatible with an accepted point of view (definitions 1, 9, 10, and 11).

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Ah, here we have sound as an adjective, modifying engineering principles. In this sense, usually considered its second sense, sound means something like strong, secure, or reliable; or competent; or in good condition.

So it is engineering principles that are reliable and safe, probably.

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: solid, firm; also : stable


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I think we're encouraged vote to close these general reference questions rather than answering them with dictionary definitions. – Hugo Dec 5 '11 at 6:00

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