Software Engineering

Proving program correctness under all possible cases

There are techniques of proving program correctness under all possible cases, but that is a more advanced topic, for a later subject in your curriculum. I always had this doubt: Is it possible to know all possible defects in a program before I write a single line of code? (i.e., How to detect a bug during the designing and planning stage itself.) If yes, what are the strategies used by the professionals? I've observed that if I am able to detect all possible logical flaws in designing and planning stage itself then overall development time is reduced. Currently to detect all possible flaws, I often run the program using all cases in my mind or on paper. As a senior engineer What techniques do you use?

May 14, 2025 - 13:12
 0

There are techniques of proving program correctness under all possible cases, but that is a more advanced topic, for a later subject in your curriculum.

I always had this doubt:

  1. Is it possible to know all possible defects in a program before I write a single line of code? (i.e., How to detect a bug during the designing and planning stage itself.)

  2. If yes, what are the strategies used by the professionals?

I've observed that if I am able to detect all possible logical flaws in designing and planning stage itself then overall development time is reduced. Currently to detect all possible flaws, I often run the program using all cases in my mind or on paper. As a senior engineer What techniques do you use?

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