choosing from the infinite pile

6_testing_venns

The six Venn diagrams of testing. In only one of these do we know the truth about the product (diagram 6). Even in this case, we don’t actually know that we know everything. This illustrates the point that the goal in testing is not to uncover the truth; rather, the goal is to define and follow a strategy (allowing for some alteration as new things are learned). Of course the hope is that these two things align.