An Integration Test is a type of software testing that focuses on verifying the interactions between different components or modules of a system. The goal is to ensure that these parts work together as intended after being integrated. This testing is crucial because individual components may function correctly in isolation but can encounter issues when combined. During an Integration Test, developers check for data flow, communication, and overall functionality between modules. This process helps identify problems such as interface mismatches or unexpected behaviors. By catching these issues early, teams can improve the reliability of the entire system before it goes into production.