If you've been thinking of web services and feeling scared of that XML mess in the web service description (wsdl) files. Well, rest aside that scare now. And, by rest I mean, Re presentational S tate T ransfer (REST). Representational state transfer (REST) is a style of software architecture for distributed hypermedia systems such as the World Wide Web. And thus invariably it could be also implemented in the world of web services as another revolutionary way of communication with web services. In REST, resources have URIs and are manipulated simply through HTTP header operations. Therefore, now one can imagine having a web service without all that WSDL clutter. REST works around a very simple principle, i.e. HTTP methods POST, GET, PUT and DELETE can be compared with the CREATE, READ, UPDATE, DELETE (CRUD) operations associated with database technologies or any application model objects. The following table associates several common HTTP verbs with similar database operations, howe...