Why do you want to use Virtual Directory?

Virtual Directory, as simple as its concept, proven to be a versatile tool for numerous Identity Management initiatives. Please see the following use-cases.

Aside the obvious benefits of LDAP, such as, a self-disclosing schema and a ubiquitous API, Virtual directory has none of the headaches that come with a separate data model and redundant data. With Penrose, heterogenerous data aggregation across application boundaries is a simple task.

The most common reason why people want to use virtual directory is providing LDAP access to their database for authentication reason.