Homework Help: Questions and Answers: When new functionality is added in a phase of the incremental model of the software lifecycle, and errors occur, the developer knows that the error is in the new functionality. This is fixed before any more functionality is added.
a) True
b) False
Answer:
First, let’s understand the incremental model:
Incremental Model:
- The incremental model is a method of software development where the product is designed, implemented, and tested incrementally (a little more is added each time) until the product is finished.
- The product is built in small sections, and each piece is thoroughly tested before adding the next part.
Adding New Functionality:
- When new functionality is added in an incremental model, the new code is integrated with the existing codebase.
Error Detection:
- If errors occur after adding new functionality, the assumption is often that the error is in the newly added functionality because it was working correctly before this addition.
- This allows the developer to focus on the newly added code to identify and fix the issue before moving on to add more functionality.
Fixing errors:
- By fixing the errors in the new functionality before proceeding to the next increment, the developers can ensure that the new code is stable and reliable.
Conclusion:
Given this understanding, the statement that “the developer knows that the error is in the new functionality, and this is fixed before any more functionality is added” is consistent with how the incremental model works.
Correct Answer: a) True
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