Oh, the word scheme. American don’t like it: it connotes duplicity.  But I think we can read the British Unitarian growth scheme correctly. It is a self-grading plan that challenges congregations to become actively welcoming by changing their behaviors.
I really like the game quality to it, offering incentive (to those so inclined) for greater activity and participation. Â The annotations are compact and helpful and point to some of the better U.S. Unitarian Universalist Association resources.
We’re not platinum but my Church is doing many of these.