Using area or trapezium rules doesn't seem to generate appropriate quantities for cyclic maintenance schedules
Ensure in asset metamodel (NM0410) form that any asset data (inventory/asset type) referenced to cyclic maintenance inventory rules ( MAI3626) , v2 asset type translations (MAI1400) for any attributes like HEIGHT, WIDTH, DEPTH, XSP are mapped to predefined attributes IIT_HEIGHT, IIT_WIDTH, IIT_LENGHT, IIT_X_SECT etc and not user defined ones so that calculations may pick up the correct parameters for cyclic maintenance schedule ( MAI3860) calculations.