Information on 0CS_ITEM: Item info object

Hi All,

I am trying to build one infocube, in one of the dimensions, i have used characterstic 0CS_ITEM(which is used in cube: 0BCS_C10). When I use this info object to build a dimension, 0BCS_INITEM and 0CS_CHART are automatically adding. I also observed that 0CS_CHART is a compounding object for the other 2 objects.

-can you please explain, why 0CS_CHART, and 0BCS_INITEM objects are adding automatically?

-If i remove these added characterstics, will there be any problem in the infocube design?

Many Thanks,

Sunitha.