I’m often asked: Should all application workloads exist in the public cloud? The right answer is one that most people don’t want to hear: It depends.

It depends on what industry you’re in. It depends on performance expectations. It depends on security requirements. The list goes on. Some enterprises will reach the point where 80 to 90 percent of their workloads exist in the cloud: some will only get to 50 percent.

There is a point at which it does not make sense to migrate any more applications to the cloud. This is due largely to the fact that there is no significant economic benefit in doing so. It doesn’t make sense to migrate what doesn’t pay for itself.

This is why I insist on making a business case that outlines the business benefits of moving to the public cloud for each and every workload. Most business cases are obvious, some will need deeper study, and some will fail to show any value. When it no longer makes sense to migrate any more applications to the cloud, you’ve reached your natural saturation point.