Common use of VRE Management Clause in Contracts

VRE Management. The VRE Management subsystem is the family of services and software components responsible for the definition and the dynamic deployment of VREs. A user-friendly user interface supports VREs definitions by guidit iing the user during the specification of the desired VRE features. Through the same interface the designer is informed on the optimal deployment plan identified by the system. In fact, the resulting plan is based on availability, QoS requirements, resource inter-dependencies, and VRE sharing policies, but also on monitoring of failures (resources are dynamically redeployed) and load (resources are dynamically replicated). The VRE Manager, by coordinating three distinguished services (Software Repository, Broker and Matchmaker, gCube Hosting Node Manager), realises the VRE dynamic deployment by, respectively, collecting service implementations, selecting target nodes for deployment within the infrastructure, and hosting resources implementations at selected nodes.