MOI - Modification Operational Impact
ventus 45,
Thanks for that.
Judging from the example in the link you provided, an MOI is pretty much at the opposite end of the spectrum from an OEB (Operational Engineering Bulletin), in that it seems to be a broad-brush, glossy document prepared weeks or months in advance to hand out at a flight-ops symposium (in this case by a senior AI pilot to CAAC flight ops people at a "workshop" [sic!] in Beijing).
Also, the document is nowhere appended with the MOI term, merely with "...confidential and proprietary document". Can you explain the basis on which you selected it as an example?