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+Once we have identified Independently Testable Features, the next step is to
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+identify the Relevant Inputs for each one of these features. And there are
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+many ways to do that. So, what we're going to do, instead of
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+looking at them all, is that we're just going to focus on two different
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+ways of doing it. And they are fairly general ways. So, they
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+are applicable to a number of situations. And in addition, what I will
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+do, I will point you to other sources in which you can
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+look at different ways of doing this in the class notes. The problem
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+of identifying relevant inputs for some Software or some feature
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+of it is called Test Data Selection and can be expressed
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+as followed. Let's consider our software as usual we have
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+our Input Domain, which is the set of inputs for all
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+the software. And again as usual, we have our Output
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+Domain, which is the set of corresponding outlets for these inputs.
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+So the question here is, how can we select a meaningful
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+set of inputs in my domain? And of course corresponding outputs
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+because we know that test cases are an input, plus an
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+expected output. So how can we select interesting inputs for our
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+software? So a set of inputs that, after we run them
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+on the software, if the software behaves correctly, we'll have enough
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+confidence that the software is correctly implemented. So one possible idea
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+is, hey, why don't we just test them all? We just
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+do exhaustive testing. We do all the inputs, nowadays we have
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+powerful machines, we have a lot of computational power in the cloud.
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+Why not just doing it? So to answer that
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+question, what I'm going to do? I'm going to use another quiz.