Manual vs Automated Testing: Real Business Impact Manual testing involves human testers executing predefined steps, exploring the application intuitively, and documenting results. It excels in scenarios requiring subjective judgment, such as usability evaluation, exploratory testing for unknown edge cases, and assessing accessibility features where human perception is irreplaceable. However, manual testing suffers from inherent limitations in speed, consistency, and cost. Regression testing-verifying that new changes have not broken existing functionality-becomes particularly burdensome as applications grow, often consuming weeks of effort for large suites.
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