Collecting data is a critical and important step in putting a project together. In experience reviewing projects, I have seen Black Belts often make mistakes in collecting data. This affects the overall result. A Six Sigma practitioner must first create a comprehensive plan to facilitate data collection. Simply stated, the beads must be with you before you sit down to string a necklace. Here is my eight-step process for data collection. We will call our example project "Project Y." (Steps one through five are shown in Table 1).
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