Chapter 8. Testing Patterns

What, me worry?—Mad Magazine spokesman Alfred E. Neuman


The importance of testing applications simply cannot be understated. Thanks to the ubiquity of computers in our lives, we are more subject than ever before to suffer injury when technology fails. A study by the National Institute of Standards and Technology (NIST) estimated that the cost of software bugs to the U.S. economy is almost $60 billion.1 “The impact of software errors is enormous because virtually every business in the United States now depends on software for the development, production, distribution, and after-sales support of products and services,” says NIST Director Arden Bement.2

1. “Software Errors Cost U.S. Economy $59.5 Billion ...

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