An open standard for instant messaging: eXtensible Messaging and Presence Protocol (XMPP)

This paper discusses the eXtensible Messaging and Pres-ence Protocol (XMPP), which is the first effort in creating an open standard for instant messaging and presence informa-tion. XMPP was introduced by the Jabber Software Founda-tion (JSF) and formalized in the IETF. Numerous extensions called Jabber Enhancement Proposals (JEP) have evolved through subsequent work. This paper explores the XMPP specifications and technology behind XMPP, accompanied with examples of the application program. Both advantages and disadvantages are analyzed