Definition[]
Integration testing is
| “ | [a]n orderly progression of testing in which software elements, hardware elements, or both are combined and tested, to evaluate their interactions, until the entire system has been integrated.[1] | ” |
Software[]
The purpose of software integration testing is to verify that units of software, when combined, work together as intended. Typically, a number of software units are integrated or linked together to form an application. Multiple applications often work together to accomplish a system function. Because the units being integrated have already been tested successfully, integration testing focuses on ensuring that the interfaces work correctly and that the integrated software meets specified requirements.
References[]
- ↑ U.S. Food and Drug Administration, Glossary of Computerized System and Software Development Technology 32 (Aug. 1995) (full-text).
Source[]
- Year 2000 Computing Crisis: A Testing Guide, at 20. ("Overview" section)