Towards a methodology for trade-off analysis in a multi-cloud environment considering monitored QoS metrics and economic performance assessment results

Cloud computing and service-oriented computing brought new opportunities for companies. However, numerous challenges, (e.g., related to application design and deployment, service monitoring) are associated with the cloud and provisioned services. Complex SLAs need to be established and monitored. Current approaches do not sufficiently address the challenges of QoS monitoring in multi-cloud environments in a holistic manner, tackling mainly technical aspects. This paper presents an on-going research project towards the development of a methodology for a trade-off analysis in a multi-cloud environment considering monitored QoS metrics and economic performance assessment results. The research methodology followed and partial results are presented, and directions for future work are discussed. Based on the needs identified, an architecture for SLA monitoring and dynamic runtime adaptations in multi-cloud environments is proposed, tackling technical and business-economic aspects.