nondeterministic . net

If I develop a (software) system for you, at your request, and I ask you to evaluate that system, you should do more than just load it up, look at it, determine that it appears, in a visual sense, to have all the features you asked for, and call it done. I’m not looking for formal acceptance testing here, but just the mere appearance of a text box labeled “Foo:” and a button saying “Bar!” does not mean that

• my foos are the sort of foos you think of when you think of foos,
• my idea of bar-ing matches your idea of bar-ing,
• the baz thing you wanted to happen with the bar-ed foos ever happens at all, or
• things aren’t otherwise quuxed up in all manner of unforeseen ways.

Because you haven’t bothered to test the system!

maxg

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