For more information about schema, see Schema.
The schema can be managed using the Web administration tool, or an LDAP application like ldapmodify in combination with LDIF files. When you are first defining new objectclasses or attributes, it might be most convenient to use the Web administration tool. If you need to copy the new schema to other servers (perhaps as part of a product or tool you are deploying), the ldapmodify utility might be more useful, see Copy the schema to other servers for more information.
See the following for more information: