What is the difference between functional testing and regression testing in manual testing?

What is the difference between functional testing and regression testing in manual testing?

Functional testing and regression testing are two important types of testing in the manual testing process. Here is the key difference between them:

1. Functional Testing: Functional testing is a type of software testing that focuses on the functional requirements of the system. It involves checking the behavior of the system against the specified requirements. The main goal of functional testing is to ensure that the software meets the functional requirements and works as expected.
2. Regression Testing: Regression testing is the process of testing the software application to ensure that recent code changes or enhancements have not adversely affected existing features. It involves re-testing parts of the software that have been modified to ensure that they still work correctly. The main goal of regression testing is to maintain the integrity of the system and prevent any unintended consequences of changes.

In summary, functional testing focuses on validating the functional requirements of the system, while regression testing focuses on ensuring that recent changes do not introduce any new defects or issues.