Setting up Data Validation Option with its own PowerCenter repository and PowerCenter Integration Service allows for greater security on who can use Data Validation Option and what metadata they can access.

Data Validation Option users who are not PowerCenter users can be granted restricted access to primary PowerCenter repositories, which they will need to access source and target metadata

Since new database connections are created in the new Data Validation Option PowerCenter repository, these connections can have increased security privileges to restrict data access to groups of users.