Järjestelmätestit

Järjestelmätestit, or system testing, is a phase in software development where the complete and integrated software system is tested as a whole. This testing approach evaluates whether the system meets the specified requirements and functions as intended in an environment that closely resembles the production setting.

System testing occurs after integration testing and before acceptance testing. It focuses on verifying the end-to-end functionality of the software, including its interfaces, performance, security, and reliability. Testers execute various test cases to identify defects that might not be apparent during unit or integration testing phases.

The scope of system testing encompasses functional requirements as well as non-functional aspects such as usability, compatibility, and recovery capabilities. It involves both positive test cases (verifying that features work correctly) and negative test cases (ensuring the system handles errors gracefully).

Effective system testing helps ensure the overall quality of the software product before it is released to end users. It provides stakeholders with confidence that the system will perform reliably in real-world scenarios. System testing is typically conducted by independent testing teams who have no involvement in the development process to maintain objectivity.