Research Field "Negotiation and Quality of Service"
Applications require flexible and efficient negotiation mechanisms supporting various ways and different levels of QoS guarantees. These QoS issues include also reliability concerns. In particular, fault tolerance is an important property in Grid environments, because the availability of individual Grid resources may not be guaranteed. Usually, QoS is specified in the form of SLA, but currently the most of resource management systems of Grid middleware do not very well support QoS and SLA negotiation. It seems reasonable that QoS guarantees have to be attached to individual constituent services in order to derive the quality of the overall composite workflow. So cost models and runtime information on the resources has to be investigated. Therefore, research is needed to determine efficient and effective ways in which negotiations and QoS aspects can be faceted.
Clearly, negotiation and QoS facets involve also issues related to the choice of the of more suitable contract type, policy and strategy to adopt, and support for interoperability.
Related Projects
BPMN
b_bprimal