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Component Interface Testing Model

publish date: 2026/06/18 03:56:36.930680 UTC

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The diagram below illustrates component interface testing where components A, B, and C have been integrated.

Where are test cases applied in component interface testing?

To the individual components A, B, and C separately

To a separate test harness that runs independently of all components

Only to component A as the entry point of the composite

To the interface of the composite component created by combining A, B, and C

Correct Answer

To the interface of the composite component created by combining A, B, and C

Explanation

In component interface testing, test cases are applied to the interface of the composite component, not to the individual components A, B, or C. Interface errors in the composite component may not be detectable by testing the individual objects because these errors result from interactions between the objects.

Reference

Software Engineering, Ian Sommerville, 10th edition

Quizzes you can take where this question appears

Component Testing and Interface Types