RFC 2779 (rfc2779) - Page 3 of 26

Instant Messaging / Presence Protocol Requirements

RFC 2779          Instant Messaging/Presence Protocol      February 2000


1. Terminology

   The following terms are defined in [RFC 2778] and are used with those
   definitions in this document:

   ACCESS RULES
   CLOSED
   FETCHER
   INSTANT INBOX
   INSTANT MESSAGE
   NOTIFICATION
   OPEN
   POLLER
   PRESENCE INFORMATION
   PRESENCE SERVICE
   PRESENTITY
   PRINCIPAL
   PROXY
   SERVER
   STATUS
   SUBSCRIBER
   SUBSCRIPTION
   WATCHER

   The terms MUST and SHOULD are used in the following sense while
   specifying requirements:

   MUST: A proposed solution will have to meet this requirement.
   SHOULD: A proposed solution may choose not to meet this requirement.

   Note that this usage of MUST and SHOULD differs from that of RFC
   2119.

   Additionally, the following terms are used in this document and
   defined here:

   ADMINISTRATOR: A PRINCIPAL with authority over local computer and
   network resources, who manages local DOMAINS or FIREWALLS. For
   security and other purposes, an ADMINISTRATOR often needs or wants to
   impose restrictions on network usage based on traffic type, content,
   volume, or endpoints. A PRINCIPAL's ADMINISTRATOR has authority over
   some or all of that PRINCIPAL's computer and network resources.

   DOMAIN: A portion of a NAMESPACE.

   ENTITY: Any of PRESENTITY, SUBSCRIBER, FETCHER, POLLER, or WATCHER
   (all defined in [RFC 2778]).




Day, et al.                  Informational