requirement
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... Requirements ...
...
For the purposes of this memo, the requirements of a basic instant
messaging and presence application are defined by [IMP-REQS], which
...
... [IMP-REQS], and the interested reader is directed to that document
regarding the requirements addressed herein.
[IMP-REQS ...
... instant messaging and
presence service, there is no requirement that a service must offer
both a presence service ...
... XMPP-based instant messaging and presence meets the
requirements of [IMP-REQS], it was not designed explicitly with that
specification in mind, since the base protocol ...
... IM and Presence Compliance Requirements ...
... clients in order to be considered
compliant implementations. All such applications MUST comply with
the requirements specified in [XMPP-CORE]. The text in this section
specifies additional compliance requirements ...
... requirements specified in [XMPP-CORE]. The text in this section
specifies additional compliance requirements for instant messaging
and presence servers ...
... and presence servers and clients; note well that the requirements
described here supplement but do not supersede the core requirements.
...
... clients; note well that the requirements
described here supplement but do not supersede the core requirements.
Note also that a server or client MAY support only presence or
...
...
In addition to core server compliance requirements, an instant
messaging and presence server MUST additionally support the following
...
...
In addition to core client compliance requirements, an instant
messaging and presence client MUST additionally support the following
...
... Day, M., Aggarwal, S., Mohr, G., and J. Vincent, "Instant Messaging/Presence Protocol Requirements", RFC 2779, February 2000. ...
... Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. ...