Come together, right now

A main concept in the use of grids for distributed computing or shared data management is the concept of visualization, that means user visualization and of course resource visualization. A single user should work on the shared resources of a grid without worrying about having a user accounts on all the different machines evolved in his calculation or data search process. This virtualization of the user is normally handled by a digital certificate which represents the user all long his grid usage process from the machine's view and is passed from one computer to the next if the user's process is referred to another machine.