1. Initialize the application interface

- Launch the tkinter GUI window.

- Display input field for URL, Scan, Stop, Quit buttons, and output text area.

2. Wait for user input

- Prompt user to enter a valid URL (http:// or https://).

3. User clicks 'Scan' button

- Validate URL format.

- If invalid, show error and halt.

- If valid, disable Scan, enable Stop.

4. Start scanning in background thread

- Define list of common directories (e.g., /admin, /login).

- For each directory:

• Combine base URL + directory.

• Send HTTP GET request (5s timeout).

• If status 200, display 'Found: URL'.

• Else, display 'Not Found: URL (Status: code)'.

• On request error, display error message.

• Check stop flag; if set, break loop.

5. After scan or stop

- Enable Scan, disable Stop.

- Display 'Enumeration finished.'

6. User can click 'Quit' anytime to close app and stop processes.