REST

Representational State Transfer (REST) is an architectural style for creating, maintaining, retrieving, and deleting resources. REST’s information-driven, resource-oriented approach to building Web services can both satisfy your software’s users and make your life as a developer easier. Web services that allow the retrieval and modification of logically named resources that mean something to someone is what REST is about. REST concept for Java developers is well described in JawaWorld articles from Brian Sletten (part1, part2, part3, part4).