Northern Trail Outfitters (NTO) uses Salesforce to track leads, opportunities and order details that convert leads to customers. However, Orders are managed by an external (remote) system. Sales representatives want to view and update real-time order information in Salesforce. NTO wants the data to only persist in the external system.
Which type of Integration should an architect recommend to meet this business requirement?

Universal Containers has a call center that would like to have a dashboard that updates in real time and shows information about phone calls that have been completed today (recorded in the Activity object). There are several teams in the call center, and each dashboard should only show calls from that team. An employee can start the board each morning, but after that no further user interaction should be needed.
What is a recommended pattern that would minimize implementation time?

Universal Containers (UC) is planning on a production release with a large data volume to be migrated to Salesforce from a back-office system. The incoming data is constantly being updated in the back-office system. UC would like to keep the data synchronized in near real-time in Salesforce.
What is the recommended approach to achieve this?