The Role of System Integration Testing

System integration testing (SIT), as implemented by E Square System and Technology, is a testing phase in which multiple software modules or systems are integrated together to verify their functionality and performance. Its main purpose is to ensure that different modules or systems, when working together, produce the expected results and there are no compatibility issues. SIT tests data flows, interactions, and end-to-end functionalities by simulating real-world scenarios, ensuring there are no bugs or issues in the system even after integration. This testing phase is an important part of the development lifecycle, improving overall software quality and reliability.