Chapter 4 – Test Techniques
Component Integration Testing – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
Testing performed to expose defects in the interfaces and interactions between integrated components.
In simple words
Testing how two or more components talk to each other.
Exam tip
Same as 'integration testing in the small' in some syllabi.
Related terms
- Integration TestingAfter units work alone, you plug them together and check the seams — API calls, data hand-offs, contracts.
- System Integration Testing (SIT)Once systems are combined, verify they talk to each other correctly.
- Unit TestingSame as component testing: developers verify one small piece of code at a time with fast, automated tests.
Practice this term in the ISTQB Mock Test
40 CTFL v4.0 questions, 60-minute timer, instant scoring and chapter-wise breakdown.
Practice in Mock Test