The introduction of WSRF also caused splits in the WS-* world. It was first announced to the World at a Global Grid Forum event in February 2004, as a successor to the Open Grid Services Infrastructure. Its limited compatibility with the mainstream WS-I architecture created dissent from the UK grid community. The Global Grid Forum ultimately isolated their dependencies on WSRF in a WSRF profile for their Open Grid Services Architecture. WSRF protocols were also used by WSDM as the means to interacts with manageable resources described in WSDM. The WS-* world, however, was not united on a single standard for Web services management with Microsoft, Sun and others choosing to pursue WS-Management, with its dependency on WS-Transfer as the means to describe manageable resources.