Using the rules engine, you can create pathways for badge recipients, based on the badges achieved along the way. This is a way to accredit your learner for each stage of their final accomplishment, via units, or particular skills accomplished.
Create a pathway, using the single ore group of rules drop-down menu
Select "And/Or" to identify the key point needed
Use the Exist rule in the drop-down function at each point.
Insert the badge ID for each key point
Select the master badge
Name the rule and fill out the description.