An organization updates a database engine at frequent intervals. Some of the changes addressed known flaws. Which approach best confirms that older problems have not reemerged after each release?
An ad-hoc test focusing on recent functionality
A manual examination of new lines of code
A daily demonstration performed by the lead developer
A repeated automated test sequence covering broad areas of the product
A repeated automated test sequence covering broad areas of the product confirms that previously addressed flaws remain fixed by retesting existing functionality and newly introduced components. Limited manual reviews or one-person demonstrations often overlook code in parts not recently updated, missing potential flaws that were once resolved but might return. Narrow scans focusing on new features alone might miss unanticipated interactions with prior code.
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Why is a repeated automated test sequence better for confirming older issues remain resolved?
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What are the limitations of focusing only on new functionality during testing?
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How do automated tests compare to manual reviews in terms of efficiency?