Oracle Unified Directory has set the bar for performance. Built ground up to provide elastic scale, Oracle Unified Directory (OUD) is interoperable with all directories in the Oracle Directory Services Suite.
With the Patchset 1 release OUD now combines the capabilities of Oracle Virtual Directory. With a combined directory, organizations can lower operating cost by consolidating directory silos using a single directory server. Instead of having multiple infrastructures and separate administrators, a unified solution can provide better administrative ratios and economies of scale.