Testing a Change
• The change made during testing is not permanent and therefore does not need supporting processes to maintain it beyond a brief period.
• The opportunities for learning about many aspects of the change from testing are expected to be significant, including learning from failures. Some percentage of tests—perhaps 25 to 50 percent—is expected to result in no improvement, to “fail,” but to result in substantial learning nevertheless.
• The number of people affected by a test is usually smaller than the number that would be affected if the change was implemented. Thus, the awareness of and reaction to a test of a change is often much less.
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