
74 WebSphere Application Server V8.5 Concepts, Planning, and Design Guide
simplicity, and standardized models or schemas for defining data. Standard schemas have
standard hierarchies of objects, such as objects that represent a person in an organization.
These objects, in turn, have attributes such as a user ID and common name. The schema can
have custom objects added to it, meaning that your directory is extensible and customizable.
Generally, LDAP is chosen over a custom database repository of users for these reasons.
LDAP implementations (such as Tivoli Directory Server) use database engines in the
background. However, these engines are optimized ...