For more information about the standard LDAP schema, and about designing a DIT, see the following sites:
RFC 4510: Lightweight Directory Access Protocol (LDAP): Technical Specification Road Map http://www.ietf.org/rfc/rfc4510.txt
RFC 4511: Lightweight Directory Access Protocol (LDAP): The Protocol http://www.ietf.org/rfc/rfc4511.txt
RFC 4512: Lightweight Directory Access Protocol (LDAP): Directory Information Models http://www.ietf.org/rfc/rfc4512.txt
RFC 4513: Lightweight Directory Access Protocol (LDAP): Authentication Methods and Security Mechanisms http://www.ietf.org/rfc/rfc4513.txt
RFC 4514: Lightweight Directory Access Protocol (LDAP): String Representation of Distinguished Names http://www.ietf.org/rfc/rfc4514.txt
RFC 4515: Lightweight Directory Access Protocol (LDAP): String Representation of Search Filters http://www.ietf.org/rfc/rfc4515.txt
RFC 4516: Lightweight Directory Access Protocol (LDAP): Uniform Resource Locator http://www.ietf.org/rfc/rfc4516.txt
RFC 4517: Lightweight Directory Access Protocol (LDAP): Syntaxes and Matching Rules http://www.ietf.org/rfc/rfc4517.txt
RFC 4518: Lightweight Directory Access Protocol (LDAP): Internationalized String Preparation http://www.ietf.org/rfc/rfc4518.txt
RFC 4519: Lightweight Directory Access Protocol (LDAP): Schema for User Applications http://www.ietf.org/rfc/rfc4519.txt
Understanding and Deploying LDAP Directory Services. T. Howes, M. Smith, G. Good. Macmillan Technical Publishing, 1999
For a complete list of the RFCs and standards supported by Directory Server Enterprise Edition, see Appendix A, Standards and RFCs Supported by Directory Server Enterprise Edition, in Sun Java System Directory Server Enterprise Edition 6.0 Evaluation Guide.