What value add does WebSphere sMash provide on top of Groovy?
Through the GlobalContext and event infrastructure, the WebSphere sMash core provides an extremely loosely coupled programming model which fosters componentization and reuse. The WebSphere sMash core also provides a convention for arranging scripts on disk in such a way that prescribes their location in an application’s URI space. Groovy is one vehicle for plugging into this environment, but on its own is simply a scripting language.