Level AAA conformance is the highest and most stringent level in the Web Content Accessibility Guidelines (WCAG). While Level A addresses the most critical accessibility issues and Level AA deals with the biggest potential barriers, Level AAA criteria often address enhancements and may not be achievable for all types of web content due to its rigorous nature.

Integration Testing is specifically focused on the interfaces between units/modules and the interactions between different parts of a system. When multiple subsystems are interconnected, Integration Testing helps ensure that they all work together as expected, and there aren't any issues or data losses when data is passed from one subsystem to another.

A Walkthrough is an informal review process led by the author of the software item being reviewed. It's a form of peer review where participants can ask questions and make comments about possible issues. It doesn't have a fixed process and is generally considered to be more collaborative and flexible.

"Stubs" and "drivers" are used in Bottom-Up integration testing. Stubs are used to simulate lower modules (that are yet to be developed) while drivers simulate higher modules. It ensures that the main logic is tested early on.

Manual testing can become tedious and error-prone, especially for repetitive tasks or scenarios with extensive data inputs. Testing a complex application with numerous input fields manually can increase the risk of missing defects due to human error or oversight.

The traceability matrix is prepared during the Requirement Analysis phase of STLC. It's a document that maps and traces user requirements with test cases. It ensures that all requirements are covered by test cases so that no functionality is left untested.

"Test Cycle Time" includes the total time taken for one cycle of testing, from test planning to closure. During test estimation, considering the Test Cycle Time is crucial as it ensures that time is allocated not just for executing tests but also for reviewing and retesting, if necessary.

Black-box Testing, often called behavioral testing, focuses on examining the functionality of the application without delving into its internal structures or workings. The main goal is to test how the software behaves in response to various inputs and conditions.

JUnit is a widely adopted framework that facilitates unit testing for Java applications. It's an open-source tool and provides annotations to write test cases. While Selenium, LoadRunner, and QTP have their areas of strength, JUnit's primary focus is Java unit testing.

Globalization testing is vital for applications that are intended for a global audience. It ensures that the software can handle and display worldwide data and is usable regardless of cultural or regional differences. It addresses potential issues like cultural sensitivity, local customs, and language preferences.

The decision on when to stop or continue testing is made during the Test Closure activity. This decision is based on factors like the testing deadline being reached, the achievement of a certain quality level, or the completion of all test cases. The Test Closure phase involves finalizing and reporting the results and evaluating the testing process.

In Configuration Management, a Baseline refers to a set standard or reference point in the development process. It's a specifically approved version of the software that can be used for further development, ensuring stability and a starting point for subsequent activities.