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How is system testing integrated into the development life cycle?

System testing is integrated into the development life cycle during the testing phase, after the implementation phase.

In the software development life cycle (SDLC), system testing is a crucial step that comes after the implementation or coding phase. It is a level of testing where the complete system is tested as a whole to verify that it works as expected. This type of testing is designed to evaluate the system's compliance with the specified requirements.

During the development process, once the system has been designed and coded, it moves into the testing phase. Here, the system is tested thoroughly to ensure that it functions correctly and meets the user's requirements. System testing is the first level of testing where the system is tested as a whole. The purpose of this testing is to evaluate the system's end-to-end functionality and to ensure that the software system is working as per the defined set of requirements.

System testing involves a series of different tests, including functional and non-functional tests. Functional tests are used to verify that the features and functions of the system work as expected, while non-functional tests are used to evaluate the system's performance and reliability.

The system testing phase is also where integration testing occurs. This is where individual units of the system are combined and tested as a group. The purpose of integration testing is to expose faults in the interaction between these integrated units.

Once system testing is completed and any defects found have been fixed, the system can move into the acceptance testing phase. This is the final phase of testing, where the system is tested to ensure it is ready for delivery or deployment.

In conclusion, system testing is a critical part of the software development life cycle. It is the phase where the complete system is tested as a whole to ensure it meets the specified requirements and is ready for delivery.

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