To answer this question, you need to understand the main purpose of the integration strategy for integration testing in the small. Let's go through each option to understand why it is correct or incorrect:
Option A) To ensure that the test case specification is complete - This option is incorrect because ensuring the completeness of the test case specification is not the main purpose of the integration strategy. While it is important to have a complete test case specification, it is not the primary goal of the integration strategy.
Option B) To set the criteria used in generating test inputs - This option is incorrect because setting the criteria used in generating test inputs is not the main purpose of the integration strategy. While it is important to have criteria for generating test inputs, it is not the primary goal of the integration strategy.
Option C) To know when test planning is complete - This option is incorrect because knowing when test planning is complete is not the main purpose of the integration strategy. Test planning is a separate activity that is completed before the integration strategy is developed.
Option D) To plan when to stop testing - This option is correct because the main purpose of the integration strategy for integration testing in the small is to plan when to stop testing. The integration strategy helps determine the scope of integration testing and the criteria for completing the testing process. It helps define when the integration testing has been sufficiently executed and when it can be considered complete.
The correct answer is Option D. This option is correct because the main purpose of the integration strategy for integration testing in the small is to plan when to stop testing.