Finally, teams that choose to forgo automated acceptance tests place a much greater burden on testers, who must then spend much more time on boring and repetitive regression testing. The testers that we know are not in favor of this approach. While developers can take on some of this burden, many developers—who write unit and component tests—are simply not as effective as testers at finding defects in their own work. Automated acceptance tests written with the involvement of testers are, in our experience, a great deal better at finding defects in user scenarios than tests written by
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