International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Cloud Computing is mainly used as utility where cloud user hires services on pay-per usage mode. The understanding between user and service provider is through Service Level Agreement (SLA) where all the terms and conditions are mentioned. The service provider is responsible for providing Quality of Service (QoS) as per SLA to the user. The SLA is implemented in multiple levels. Cloud provider needs to monitor and control the services being provided to user in order to avoid penalty or poor quality of service. This is possible only when all the terms and conditions are quantitative in nature.