Draw and clearly describe a step-by-step flowchart for a User Login system. Your login must include:

• Taking a Username and Password as input.
• Checking the database.
• If correct: Granting access.
• If wrong: Adding 1 to a "failed attempts" counter.
• Access denied block the account if the counter reacher 3.

Step-by-Step Flowchart Algorithm for User Login System

1. Logical Steps (Algorithm):

Step 1: Start the login process.

Step 2: Initialize counter variable: Set failed_attempts = 0.

Step 3: Prompt and accept Username and Password from the user.

Step 4: Query the database to verify if the entered Username and Password match an existing record.

Step 5: Decision Point 1 — Are the credentials correct?

    
• If Yes:         
              
  • Display "Login Successful - Access Granted".
              
  • Direct user to the system dashboard/main menu.
              
  • Go to Step 8 (End).
          
      
    
• If No:         
              
  • Increment counter: failed_attempts = failed_attempts + 1.
              
  • Proceed to Step 6.
          
      

Step 6: Decision Point 2 — Is failed_attempts >= 3?

    
• If Yes:         
              
  • Display "Access Denied: Account Blocked due to 3 consecutive failed attempts".
              
  • Update account status in the database to Blocked.
              
  • Go to Step 8 (End).
          
      
    
• If No:         
              
  • Display "Incorrect Username or Password. Please try again."
              
  • Loop back to Step 3 to accept input again.
          
      

Step 7: End / Stop.

Flowchart Representation & Symbol Mapping

Textual Diagram of the Flowchart Loop

[START]

    │

[Set failed_attempts = 0]

    │

┌──> [/ Input: Username, Password /]

│        │

│    [Check Database Credentials]

│        │

│    < Correct Credentials? >

│        ├─── (YES) ───> [/ Display "Access Granted" /] ───> [END]

│        │

│      (NO)

│        │

│    [failed_attempts = failed_attempts + 1]

│        │

│    < failed_attempts >= 3? >

│        ├─── (YES) ───> [/ Display "Access Denied: Account Blocked" /] ───> [END]

│        │

└─── (NO) ────┘ (Loop back to Input)