30. An internal developer deploys a new customer information system at a company. The system has an updated graphical interface with new fields. Which type of functional testing ensures that the graphical interface used by employees to input customer data behaves as the employees need it to?

Answer: C

Explanation:

Acceptance testing ensures that the graphical interface behaves as the employees need it to.

Acceptance testing is crucial as it validates whether the new graphical interface meets the requirements and expectations of the end-users, in this case, the employees inputting customer data.

A) Load testing

Load testing is focused on assessing the performance of the system under various loads and is not concerned with the functionality or usability of the graphical interface. Therefore, it does not address whether the interface meets the employees' needs.

B) Security testing

Security testing aims to identify vulnerabilities and ensure that the system is protected against threats. While important, it does not evaluate how well the graphical interface supports the user experience or functionality required for data input.

C) Acceptance testing

Acceptance testing is designed to confirm that the system meets the specified requirements from the perspective of the end-users. This type of testing directly assesses whether the new graphical interface allows employees to input customer data effectively, making it the correct choice.

D) Regression testing

Regression testing is conducted to ensure that new code changes do not adversely affect existing functionalities. While it checks for unintended side effects, it does not evaluate user satisfaction or the specific needs of the graphical interface.

Conclusion

Acceptance testing is definitively the right choice as it directly involves the end-users in confirming that the system functions as intended and meets their needs. In contrast, the other options focus on performance, security, or unintended changes rather than validating user requirements, making them unsuitable for assessing the graphical interface in this context.