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First, an organization that develops any form of software product or service must put in every effort to drastically reduce and, preferably, eliminate any defects in each delivered product or service. Users are increasingly intolerant of the hit-and-miss approach that characterized software products. From the point of view of a software development organization also, it may not be economically viable to deliver products with defects. For instance, imagine finding a defect in the software embedded in a television after it is shipped to thousands of customers. How is it possible to send "patches" to these customers and ask them to "install the patch?" Thus, the only solution is to do it right the first time, before sending a product to the customer. Second, defects are unlikely to remain latent for