The problem comes about because the idea of “opportunity for improvement” (OFI) existed and has an understood definition long before ISO 9001:2015 was written and started talking about “opportunities” as the partner of risk. This complicated things.
When I talk OFI, I mean the traditional sense: people see potential ideas for improvement and write them up as CPARs. When I talk of “improvement initiatives” I mean more grander, bigger-scale activities that require long term monitoring. I see that it’s not clear, and we can thank ISO for some of that confusion.
However, every “improvement initiative” could be logged in BOTH the CPAR system and the Opportunity Log. If that’s annoying, then just enter them in one or the other.