The Astrogrid Client runtime (ACR) is a desktop service which other client-side applications can connect with to interact with astrogrid. The ACR provides a high-level facade into AstroGrid services, accessible from HTTP / XML-RPC / JavaRmi and Gui interfaces.
The ACR provides a single sign-on, single-configuration, and single cache for interactions with astrogrid servers - making implementation of client-side applications simpler.
The Workbench is a suite of client-side applications for accessing AstroGrid services - a registry browser, myspace manager, job controller and application invoker. It is layered upon the AstroGrid Client Runtime (ACR).