how to reduce the rework on Informatica ETLs due to change of table and column names

Question

Currently, we have a lot of ETLs developed and the underlying table and column names are going to change. For example, the physical names used abbreviated names rather than full names since we wanted to deploy on Oracle, but for now, we decided we will use only SQL Server, hence there is a discussion on using full names at the DB level. This will impact the ETLs that we have already developed.

I was just wondering whether there is any efficient way to remap the ETL to the changed column names? I can provide a file with old and new table/column names as input.

Any help on this will be really appreciated.