Caching and Materialization for Web Databases
Foundations and Trends in Databases
Policy-Based Management of QoS in Service Aggregations
CCGRID '10 Proceedings of the 2010 10th IEEE/ACM International Conference on Cluster, Cloud and Grid Computing
Model-based dynamic QoS-driven service composition
Proceedings of the 2nd International Workshop on the Quality of Service-Oriented Software Systems
An offer generation approach to SLA negotiation support in service oriented computing
Service Oriented Computing and Applications
Tx-policy: transactional policies for reliable web service composition
Proceedings of the International Conference & Workshop on Emerging Trends in Technology
Concurrent negotiations in cloud-based systems
GECON'11 Proceedings of the 8th international conference on Economics of Grids, Clouds, Systems, and Services
A time-constrained SLA negotiation strategy in competitive computational grids
Future Generation Computer Systems
Software—Practice & Experience
Policy-Based Automation of SLA Establishment for Cloud Computing Services
CCGRID '12 Proceedings of the 2012 12th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (ccgrid 2012)
| Hi-index | 0.00 |
Negotiation of Service Level Agreements (SLAs) is very important for maintaining Quality of Service (QoS) of composite Web services-based business processes. The process of negotiation involves specification of negotiation parameters, exchanging offers to conduct the actual negotiation process, and then finally generating the formal SLA if the negotiating parties come to a consensus. We propose a Negotiation Broker (NB) middleware framework to facilitate automated negotiations of SLAs for Web services in a Service Oriented Architecture (SOA). High level business goals, contexts, preferences, constraints, and values of the negotiation issues are expressed as a policy specification by each of the negotiating parties. The NB maps the policy specifications to low level negotiation strategy models and parameters in order to conduct the negotiation locally as a trusted broker. We present a model and an example of the high level negotiation policy specification. We also present our NB framework including a prototype implementation to illustrate the mapping of the policy to a time-dependent negotiation strategy model.