Explanation
The types of analyses that a business analyst typically performs during the discovery phase of a Salesforce project are enterprise analysis, strategy analysis, and stakeholder analysis. Enterprise analysis is a technique that examines and evaluates the internal and external factors that affect a business or organization. It can help the business analyst understand the strengths, weaknesses, opportunities, and threats (SWOT) of a business or organization. Strategy analysis is a technique that defines and clarifies the goals, objectives, scope, and success criteria of a project or initiative. It can help the business analyst align the project or initiative with the vision and mission of a business or organization. Stakeholder analysis is a technique that identifies and evaluates the people who have an interest in or influence on a project or initiative. It can help the business analyst understand who are the key stakeholders, what are their roles and responsibilities, what are their needs and expectations, how they communicate and collaborate, etc. Financial analysis is a technique that assesses the costs and benefits of a project or initiative. It can help the business analyst justify or prioritize theproject or initiative based on its return on investment (ROI) or net present value (NPV). Technical analysis is a technique that examines and evaluates the technical aspects of a project or initiative. It can help the business analyst understand the feasibility or complexity of a project or initiative based on its architecture or design.
Operational analysis is a technique that analyzes and optimizes the processes and workflows of a business or organization. It can help the business analyst improve the efficiency or effectiveness of a business or organization based on its performance metrics or best practices.

This answer states that number of passed test cases divided by total number of test cases is how the success rate is calculated after completing user acceptance testing (UAT) for a Commerce Cloud implementation at CK. Test cases are scenarios or steps that verify or validate if a feature or a functionality meets the acceptance criteria or requirements. Passed test cases are test cases that meet or pass the acceptance criteria or requirements. Total number of test cases are all test cases that are executed or performed for UAT. Number of passed test cases divided by total number of test cases is how the success rate is calculated because it measures how many test cases meet or pass the acceptance criteria or requirements out of all test cases executed or performed for UAT. References:
https://trailhead.salesforce.com/en/content/learn/modules/salesforce-business-analyst-quick-look/use-user-stories