GUI (Graphical User Interface) Testing primarily focuses on the visual aspects of an application, ensuring that the colors, fonts, images, and other UI elements are presented correctly and provide a positive and consistent user experience. This helps in making the application visually appealing and user-friendly.

Gray Box Testing is an advanced testing method where the tester has partial knowledge of an application's internal workings. The tester understands the application's functionality but doesn't delve deep into its internal structures, making it a blend of black and white-box testing.

An inspection is a formal type of review wherein the process is structured and predetermined. The reviewers are chosen for their specific expertise and are required to go through the material thoroughly. It's more formal than other types of reviews like walkthroughs.

The overall risk score, commonly referred to as the "Risk Exposure," is determined by multiplying a risk's likelihood (or probability) with its impact. This provides a quantitative measure that aids in understanding the potential severity of the risk, allowing for more informed decision-making.

Usability Testing is a technique used to evaluate a product by testing it on users. In this phase, real users interact with prototypes of the design to uncover potential usability flaws. This helps ensure that the end product is user-friendly and offers a good user experience before finalizing the design.

Exit criteria in the Software Testing Life Cycle (STLC) are a pre-defined set of conditions or metrics which must be achieved to conclude a testing phase. These conditions could include factors like achieving a certain percentage of test coverage, a limited number of high-severity defects remaining open, meeting performance benchmarks, etc. Having a clear exit criteria ensures that a testing phase achieves its intended quality objectives before moving to the next phase.

Decision Coverage in white-box testing ensures that each decision point or branch has been executed for both 'true' and 'false' conditions. It is more robust than simple statement coverage because it ensures that each decision leads the control flow in both directions.

Automated test suites, which consist of a collection of test scripts, test data, and execution sequences, require effective management to ensure organized execution and reporting. Test Management tools offer capabilities to define, organize, and execute tests, as well as to report defects and generate metrics, streamlining the automation workflow.

The Test Manager oversees the entire testing process and ensures that all testing activities align with the project timelines and budget. They coordinate between stakeholders and the testing team, ensuring that the testing phase progresses smoothly.

Git is a widely-used Configuration Management tool. It helps developers track and control changes in the software, allowing multiple developers to collaborate on a project simultaneously without interfering with each other's changes, and helps maintain version history.