Passing column names as variables to other subprocess

Hi,

I am trying use a process within another process by using the execute process block. For example a process A should be run within the parent process B but the input data in process B is variable and can have different structures (column names, rows, data types etc.). Can I pass the column names as variables to process A so that I need not change the column names everytime I want to use process A within another process. Basically something similar to column mapping in Informatica while using mapplets.


Any ideas on how this can be done (if possible at all).

Thanks