Security as a Dimension of Quality of Service in Active Service Environments

摘要

The introduction of metacomputing and distributed resource management mechanisms to the Internet and World Wide Web will make available to users and applications a diverse set of previously unavailable network and computing resources. Middleware resource management systems (RMSs) will use geographically distributed, heterogeneous resources to support applications with a wide range of computation needs 1234. The RMS in such an environment is responsible for: efficiently scheduling multiple simultaneous tasks onto specific network resources; supporting user requirements for performance and security; and providing support for tasks to adapt to changing resource availability. This is accomplished by balancing costs for various services against their benefits, where the benefits can be to individual users or may be associated with the system as a whole, e.g. total throughput.