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Network Working Group The North American Directory Forum Request for Comments: 1758 February 1995 Obsoletes: 1417, 1295, 1255, 1218 Category: Informational

                      NADF Standing Documents:
                          A Brief Overview

Status of this Memo

 This memo provides information for the Internet community.  This memo
 does not specify an Internet standard of any kind.  Distribution of
 this memo is unlimited.

Table of Contents

 1. Introduction .........................................    1
 1.1 Document Availability ...............................    3
 1.1.1 Hardcopy ..........................................    4
 1.1.2 Anonymous FTP .....................................    4
 Security Considerations .................................    4
 Author's Address ........................................    4

1. Introduction

 The North American Directory Forum (NADF) is a collection of service
 providers which plans to cooperatively offer a Public Directory
 Service in North America using the CCITT X.500 Recommendations.
 Although many groups are working on realizing X.500, the NADF is
 unique in that it must achieve a cooperative service offered by
 competing providers.
 The purpose of this document is to provide a brief overview of the
 NADF's Standing Document series.  As of this writing, the standing
 documents are:

NADF [Page 1] RFC 1758 NADF Standing Documents February 1995

              No                           Title
             ----    ------------------------------------------------
             SD-0    NADF Standing Documents: A Brief Overview
             SD-1    Terms of Reference
             SD-2    Program Plan
             SD-3    Service Description
             SD-4    The Directory Schema
             SD-5    An X.500 Naming Scheme for National DIT Subtrees
                         and Its Application for c=CA and c=US
             SD-6    Guidelines on Naming and Subtrees
             SD-7    Mapping the North American DIT
                         onto Directory Management Domains
             SD-8    The Experimental Pilot Plan
             SD-9    Charter, Procedures and Operations of the
                     Central Administration for NADF
             SD-10   Security & Privacy: Policy & Services
             SD-11   Directory Security: Mechanisms and Practicality
             SD-12   Registry of ADDMD Names
             SD-13   NADF Accounting and Settlements
 SD-1 defines the scope of the NADF, whilst SD-2 describes issue of
 interest to the NADF.
 The remaining documents describe the agreements necessary to achieve
 a cooperative Public Directory Service offered by competing
 providers.  In this context, it should be observed that the NADF
 relies on X.500(88) to the largest extent possible.
 SD-3 contains agreements concerning the Directory "service", e.g.,
 quality of service, whilst SD-4 contains agreements concerning the
 Directory schema.
 SD-5 concerns itself with how a national authority should structure
 its DIT subtree, and then applies these principles to define the
 naming scheme for the c=CA and c=US parts of the DIT.  The NADF's
 approach is to divide a national DIT subtree into two portions: the
 public name-space, which corresponds to information objects having
 some sort of public recognition (e.g., states, counties, businesses,
 etc.), and several private name-spaces, each unilaterally managed by
 a public provider of Directory services.  (SD-12 defines the registry
 of these providers.) Based on the civil standing of an entity, that
 entity may opt to list as one or more entries in the public name-
 space.  That is, registration, per se, occurs outside of the
 Directory.  This is an important concept as it allows an entity to
 list where others are likely to search.

NADF [Page 2] RFC 1758 NADF Standing Documents February 1995

 SD-6 provides guidelines as to how organizations might wish to
 organize their private name-space, and also discusses how multi-
 nationals might choose to list themselves.
 SD-7 contains agreements concerning how the DIT is mapped onto
 multiple DMDs.  Knowledge maintenance procedures are absent from
 X.500(88), and products which support X.500(92) are years away.
 Further, the competitive relationships between the North American
 Directory providers invalidate any possibility of a single entity
 having exclusive management rights to the public name-space.  The
 NADF approach is to cooperatively manage the public name-space by
 allowing each service provider to provide linkage from the public
 name-space into their own private name-space.  This information is
 limited to knowledge references and naming links; there is little, if
 any, payload present.  SD-9 discusses how a central authority (termed
 the CAN) coordinates and disseminates this information.  In effect,
 the CAN publishes a roadmap for North American Public Directory
 SD-8 describes agreements reached for the NADF Pilot.
 SD-10 describes the NADF policy toward security and privacy.
 Attachment 1 of SD-10 contains the "User Bill of Rights for entries
 and listings in the Public Directory".  In contrast, SD-11 describes
 the security facilities available in the Directory, and then
 specifies which mechanisms which will be used in the Public Directory
 SD-12 provides a registry of ADDMD names in the NADF project.
 SD-13 provides a model and general principles for accounting and
 settlement in the directory.

1.1. Document Availability

 At the present time, the NADF standing documents are available only
 in hardcopy and PostScript form.  Since they do not exist in ASCII
 form, the NADF standing documents can not be distributed as
 informational RFCs.  Following are the various distribution
 mechanisms available.

NADF [Page 3] RFC 1758 NADF Standing Documents February 1995

1.1.1. Hardcopy

             Postal: NADF Secretariat
                     c/o Rapport Communication
                     2721 N Street NW
                     Washington, DC 20007
             Tel:    +1 202 342 2727
             Fax:    +1 202 625 4101
             E-Mail: Ted Myer <>

1.1.2. Anonymous FTP

             area:   /pub/nadf/nadf-docs
             files:  sd-*.ps
             mode:   ascii

Security Considerations

 Security issues are not discussed in this memo.

Author's Address

 North American Directory Forum
 c/o Theodore H. Myer
 Rapport Communication
 2721 N Street NW
 Washington, DC  20007
 Phone: +1 202-342-2727

NADF [Page 4]

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