Virtualisation of Resources of the Hosting Environments
Separation of Infrastructure Management Capabilities from Application Specific Ones
Application Deployment
Management of VO Policies
Secure Federation
Policies and Mechanisms for VO Membership and Authorisation
Resource Annotation
Automatic Resources/Services Discovery
Resource annotation is concerned with providing machine readable information about VO resources that can be used to automate the discovery, selection, composition and use of the resources.