Final answer:
Software testing confirms that changes to one system haven't negatively impacted other systems or functionality.
Step-by-step explanation:
Software testing confirms that changes to one system haven't negatively impacted other systems or functionality. This type of testing is often carried out to ensure that the changes made to a software system do not cause any unintended consequences, such as breaking other features or introducing bugs. It is essential to perform this testing to maintain the overall stability and functionality of the system.
For example, in the context of software development, regression testing is commonly used to verify that new changes or patches do not introduce any new bugs or issues that were not present before. This helps ensure that the changes made to one system do not adversely affect other interconnected systems or the overall functionality of the software.
Overall, through comprehensive testing, it can be confirmed whether changes made to one system have any negative impact on other systems or functionality, thus helping maintain the integrity and smooth operation of the entire software system.