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Tech Apps - Coggle Diagram

- - - - Create profile, create/refresh/add
        new menu items
      - Receive notifications
      - Offboarding
    - - Receive notifications
      - Know when the order is available
      - Inform the customer/restaurant
      - De-register
    - - Create an order
      - Receive notifications
      - Track the status
      - Cancel the order
      - Pay for the order
      - Create/Update their account
      - Search for restaurants
  - - - Relational
        
        transactions
      - NoSQL (Columnar)
        
        data of restaurants, menu descriptions,
        user data, driver data
    - - Pub/Sub