Publications in Scientific Journals:
I. Brandic, D. Music, S. Dustdar:
"VieSLAF Framework: Facilitating Negotiations in Clouds by Applying Service Mediation and Negotiation Bootstrapping";
Scalable Computing: Practice and Experience (SCPE),
Special Issue: Grid and Cloud Computing and their Application Vol. 11
Cloud computing represents a novel and promising computing paradigm where computing resources have to be
allocated to software for their execution. Self-manageable Cloud infrastructures are required in order to achieve that level of
flexibility on one hand, and to comply to users´ requirements specified by means of Service Level Agreements (SLAs) on the other.
However, many assumptions in Cloud markets are old fashioned assuming same market conditions as for example in computational
Grids. One such assumptions is that service provider and consumer have matching SLA templates and common understanding of
the negotiated terms or that they provide public templates, which can be downloaded and utilized by the end users. Moreover,
current Cloud negotiation systems have based themselves on common protocols and languages that are known to the participants
beforehand. Matching SLA templates and a-priori knowledge about the negotiation terms and protocols between partners are
unrealistic assumption in Cloud markets where participants meet on demand and on a case by case basis. In this paper we present
VieSLAF, a novel framework for the specification and management of SLA mappings and meta-negotiations facilitating service
mediation and negotiation bootstrapping in Clouds. Using VieSLAF users may specify, manage, and apply SLA mappings bridging
the gap between non-matching SLA templates without a-priori knowledge about negotiation protocols, required security standards
or negotiated terms. We exemplify two case studies where VieSLAF represents an important contribution towards the development
of open and liquid Cloud markets.
grid services, cloud computing, autonomic computing, service negotiation
Project Head Ivona Brandic:
Foundations of Self-governing ICT Infrastructures
Created from the Publication Database of the Vienna University of Technology.