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Staged delivery plan look-alikes

Some projects follow a percentage approach and plan to deliver software releases at SO percent complete, 90 percent complete, and 100 percent complete. Without a list detailing the contents of each stage, percentages are not sufficient to guide a staged release plan. If a percent target is augmented with the same level of detail as a theme release, using percentages can work acceptably well, although they don't provide the same kind of guidance for deciding what to put into each release that themes do.
Similarly, breaking the project into alpha, beta, and final releases is not actually a staged delivery approach. Rather, it is a plan to deliver feature- complete software at alpha release time with such low quality that three phases are needed to make the software run correctly. This is a costly alternative to a true staged delivery approach—the project team will spend the alpha, beta, and final release phases correcting defects downstream that could have been corrected more economically upstream.
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