Summary

This Recommendation provides a directory specification to fulfil the service requirements of ITU-T Rec. F.510. The directory specification is named Unified Directory Specification (UDS) to reflect that it allows a great variety of database structures to be supported. The ITU-T Rec. F.510 service is realized by the Unified Directory Access Protocol (UDAP). This protocol is expressed using the eXtensible Markup Language (XML) schema notation.

UDAP has been designed in a way that facilitates an easy mapping to ITU-T Rec. E.115.

The structure of this Recommendation follows the structure of ITU-T Rec. F.510. Certain clauses in ITU‑T Rec. F.510 do not require a corresponding specification and are left void.