How to track which column has been updated in SSIS using SCD

Hi SSIS Gurus,

Need help on tracking which column has been updated using a SCD Type 2.

We have a requirement in which the user can update any row in the excel sheet and whatever column is updated, history is preserved using SCD Type 2 using the START_DATE and END_DATE columns

Apart from this they also need to know which column has been changed by adding the description in a separate column. For e.g. if Item Price has been changed in Product Table from 11.27$ to 13.43$, the description column should say the Item Price Changed.

I researched on this part and found that it could be possible using the Script Task Component in SSIS. I am using BIDS 2008 R2.

Would really appreciate if anybody could guide me to achieve this requirement.

Regards

Arun Sasi