There is a rigorous definition of REST; it's called RFC 2616. [1] That probably most people who implement it don't pay as much attention to it as they should do

There is a rigorous definition of REST; it's called RFC 2616. [1] That probably most people who implement it don't pay as much attention to it as they should doesn't make it any less existent. [1] http://www.w3.org/Protocols/rfc2616/rfc2616.html http://www.w3.org/Protocols/rfc2616/rfc2616.html