Flows are executable integration processes that contain Jobs published from Talend Studio. To run the flows on Talend Integration Cloud, you will need either a Cloud Engine or a Remote Engine and the appropriate license.
You can access license information on the Subscription tab in Talend Management Console.
For more information on licenses or Talend Management Console, go to Account and License Information.
As shown in the table above, there are advantages and disadvantages with either engine, but the criteria that will determine the use of Cloud or Remote engines will most likely be the architecture.
The architecture and use cases shown below will help you determine whether you should use a Cloud or Remote Engine.