To me this 'source' requirement does not make sense. It is not that you bring training data and the application together and press a train button, there's much

To me this 'source' requirement does not make sense. It is not that you bring training data and the application together and press a train button, there's much more actions involved. Also the training data is of a massive amount. Additionally, what about human in the loop training, do you deliver humans as part of the source?