Regression testing is a type of software testing that ensures that previously developed and tested software still performs as expected after changes have been made to the system. These changes can include code modifications, bug fixes, software enhancements, or updates to the environment in which the software operates. The primary goal of regression testing is to identify any unintended consequences or negative impacts on the existing functionality of the software.
As software evolves, it is common for new features to be added, existing features to be updated, and bugs to be fixed. These changes can sometimes cause unintended side effects that may lead to the software not functioning as expected. Regression testing is essential to ensure that the software remains stable and reliable after each change. It helps in maintaining the quality of the software and reducing the risk of introducing new issues into the system.
There are several types of regression testing, including:
There are several techniques that can be used to perform regression testing, including:
Regression testing is a critical aspect of software development and maintenance, ensuring that changes made to the software do not negatively impact its existing functionality. By employing various types of regression testing and techniques, organizations can maintain the quality and reliability of their software products, reducing the risk of defects and ensuring a positive user experience.