System testing is a black-box testing technique that is used to evaluate an entire system. The main purpose of system testing is to detect defects in the system. A system can be a software application a hardware device or a combination of both. System testing can be performed manually or using automated tools.A system can be a software application hardware device or a combination of both. System testing is usually performed by the development team or by an independent group of testers after the individual components have been unit tested.
System testing can be divided into two types: functional and non-functional. Functional testing verifies that the system performs as specified in the requirements. Non-functional testing verifies that the system meets other quality criteria such as performance scalability security and so on.
System testing is a type of software testing that verifies the end-to-end functionality of a software application. The purpose of system testing is to ensure that the application meets the business requirements specified in the functional specification. System testing covers all aspects of the application including the user interface database and back-end components.