Regarding Data Reconciliation

Hi,

As i understand that Data Reconciliation is used to check the consistency of the data between the source and the BI.

I have a small doubt in this regard,

When i went through the SAP Library i saw the two terms

1) Productive Datasource and

2) Datasource for data reconciliation

Are these two data sources same or not?

If i tick mark the option Data Reconciliation option in the Datasource, the same is used to transfer the data to the normal infocube and if i implement a virtual cube does the same data source is used to transfer the DS or does i need to create another

Please clear my doubt

Thanks in Advance,

K Janardhan Kumar