REST - Software Architecture

It is intersting on different style of software Architecture style. REST is an acronym standing for Representational State Transfer. A representation of the resource is returned. The representation places the client application in a state. The result of the client traversing is another resource is accessed. The new representation places the client application into yet another state. Thus, the client application changes (transfers) state with each resource representation --> Representational State Transfer. Rest is a style not standard just like 3 tier or single tier or client server type. Rest uses HTTP, URL, XML/HTML/GIF/JPEG/etc and text/xml, text/html, image/gif, image/jpeg, etc (MIME Types). That means all web is Rest system. Any system like online info systems, online order systems are all Rest systems. Rest does not talk about implementation - like to use myfaces or struts or portlets. Google more on REST, it is intersting.
1. http://en.wikipedia.org/wiki/Representational_State_Transfer