How to link processes to a process on a different board

​@Sarah Morris You could use the External linking feature (Internal linking would be to objects on the same board):

https://help.miro.com/hc/en-us/articles/360017572354-Internal-and-external-linking

Synced copies

Depending on your plan, and if your blueprints are in a Diagram format, you could also use the Synced copies feature to create a synced/duplicate of a diagram on another board:

https://help.miro.com/hc/en-us/articles/21211471744018-Synced-copies