Model:

• Can be accessed by both the View and the Controller
• Can NOT access the View or the Controller
• Suggested Usage:
  • Handles business logic
  • Interacts with the database
  • It processes and responds to data read requests from the View
  • It processes data create, update, and delete requests from the Controller

View:

• Only has access to the Model
• Can NOT access the Controller
• Suggested Usage:
  • Builds the HTML output string for your web application
  • Handle display logic
  • When it needs data, it will request it from the Model

Controller:

• Only has access to the Model
• Can NOT access the View
• Suggested Usage:
  • Handles all inbound request i.e. Form submissions
  • Handles data validation logic
  • When it needs to make a change to the database, it will send the validated data to the Model

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