To answer this question, we need to understand the concept of component integration testing.
Component integration testing is a type of testing that focuses on testing the interactions between different software components. It is performed to ensure that the components work together as expected and that the integration between them is successful.
Let's go through each option to understand why it is correct or incorrect:
Option A) Component integration testing tests the interactions between different systems and is done after - This option is incorrect because component integration testing focuses on testing the interactions between software components, not different systems.
Option B) Component integration testing tests the interactions between different systems and may be done after - This option is incorrect because component integration testing focuses on testing the interactions between software components, not different systems. Additionally, component integration testing is typically done before system integration testing.
Option C) Component integration testing tests the interactions between software components and is done during - This option is incorrect because component integration testing is usually done before system integration testing. It is a step in the software development lifecycle that occurs after unit testing but before system testing.
Option D) Component integration testing tests the interactions between software components and is done after - This option is correct because component integration testing tests the interactions between software components and is typically performed after unit testing but before system integration testing.
Based on the explanations above, the correct answer is D) Component integration testing tests the interactions between software components and is done after.