Traditional development models often followed a linear approach, with testing occurring at the end of the development cycle. This approach could lead to delays and increased costs if significant issues were discovered late in the process. In contrast, agile development integrates testing throughout the entire development lifecycle, promoting early defect detection and faster issue resolution.

QA testers in agile teams work closely with developers, product owners, and other stakeholders to define acceptance criteria, create test cases, and validate user stories. Testers are involved from the project's inception, ensuring that quality is a shared responsibility among team members.

Continuous Integration (CI) and Continuous Deployment (CD) practices further emphasize the importance of QA testing in agile environments. CI/CD pipelines automatically build, test, and deploy code changes, providing

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