With cloud brokering, you migrate your workload depending on the price and needs from one cloud provider to another. That can be on a day-to-day or more frequent basis.

This brokering was the first intention of businesses to save money with the cloud, but in practice, brokering only works with very simple IaaS or very standardized PaaS solutions. Most of the more complex workloads, such as Microsoft Exchange, SAP, and Oracle depend on drivers and you always have different hypervisor solutions between your cloud providers. In addition to that, IaaS workloads are very costly compared with solutions built on PaaS. So, looking down and ahead the timeline, the second multi-cloud model has become more common—best of breed.