Four principles of software engineering

Software should be robust. It should be designed to accommodate all known edge cases. In practice, this means predicting and handling all known error cases, enumerating and addressing all classes of user inputs, reasoning about and planning for the performance characteristics of your program, and so on. Software should be reliable. It should be expected to work for an extended length of time under design conditions without failures. Ideally, it should work outside of design conditions up to some...

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