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Integration testing verifies that the individual components or modules of a system function together correctly.
In enterprise IT, this typically focuses on validating data flow and business logic across interconnected software applications, APIs, and services, ensuring that systems like CRM, ERP, and databases operate as a unified whole.
In embedded systems, this process must also account for unique physical and operational constraints, such as real-time performance, limited hardware resources, direct hardware dependencies, and the operating environment.
Embedded integration testing specifically validates interactions across the entire system stack, including software units, electronic hardware components, firmware layers, and external physical interfaces.
Related terms: API testing, automated testing, static analysis, unit testing, web UI testing
An e-commerce platform performs integration testing to verify that various components—such as payment gateways, inventory systems, and order processing—work seamlessly together.
A software development team conducts integration testing to validate the interaction between microservices in a distributed architecture.
An automotive engineering team performs embedded integration testing to validate the interaction between hardware and software, like ensuring a vehicle’s ADAS sensors correctly communicate with the braking control unit in real time.
