There are two type of boards involved into the integration process:
1. Master Board
High-level board containing items cloned from the source board(s). One master board can collect items from multiple source boards.
2. Source Board
Low-level board containing a list of items or subitems to be cloned to the master board. One source board can be integrated with up to two master boards at one time – one master board for items cloning and one master board for subitems cloning.
Subitems from the source board are represented as items to the master board.
