This visual execution shows the steps a user takes to sign up or log in to an app. The user first opens the app and chooses either to sign up or log in. If signing up, the user enters email and password, which the system validates. If valid, the system creates the account and logs the user in automatically. If logging in, the user enters credentials which the system checks. If correct, access is granted. If any validation or credential check fails, the system shows an error and allows retry. Variables like user choice, email, password, validation status, account creation, login status, and error messages change step by step as shown in the tables. This helps beginners see exactly what happens inside the app during these workflows.