System testing

System Testing is a critical phase in the software testing lifecycle where the complete and integrated software system is evaluated to ensure it meets the specified requirements. This testing level focuses on verifying that the system as a whole operates according to the functional and non-functional requirements outlined in the project documentation. System testing is typically performed after integration testing, where individual components or subsystems are combined and tested as a group. During system testing, test cases are executed in an environment that closely resembles the production setting to validate the end-to-end system functionality and performance.

The primary objective of system testing is to identify defects that only become apparent when the complete system is under scrutiny. It includes testing various aspects such as user interfaces, APIs, databases, security, and overall system behavior. By simulating real-world scenarios, testers can ensure that the system can handle expected user interactions and data flows effectively. This testing phase is crucial for detecting issues that might not have been visible during earlier testing stages, thereby reducing risks before the system is deployed to the end-users. System testing is a comprehensive evaluation that ultimately helps ensure the product delivers a seamless experience in its intended operational environment.