Enhancing the SLA framework of a virtualized service platform by dynamic re-negotiation

Service level agreements (SLAs) are gaming uptake in *aaS offerings, although they only provide limited Quality of Service guarantees. Deployment and hosting of applications needing real-time is a difficult task but can be performed with the support of SLAs. Even though this in itself is a great step forward in comparison to conventional offerings of, for example, cloud computing, SLAs are, due to their quite static nature, inflexible. We propose a re-negotiation framework for virtualized service platforms, having even greater benefit from the usage of SLAs.