There are several ways to define MBIs. These patterns represent some of them.
Defining an MBI based on balancing value delivered sooner Vs potential extra development cost
MBIs are often created by selecting functionality based on value delivered even if it means more development work in the long run.
See the pattern here.
Go to The FLEX Patterns
Two online FLEX courses are now being offered – FLEX for SAFe, and Adopting FLEX (the first course in becoming a FLEX trainer).
If you want to learn about how to adopt FLEX in your organization please contact the author, Al Shalloway.