Measured Service and Metered Utilization in Cloud Computing, Explained for Cloud+
Measured service — often called metered utilization or pay-as-you-go — is the billing model that makes cloud computing economically different from owning hardware. It is one of the five essential characteristics of cloud computing in the NIST definition, and it is the one that turns capital expenditure into operating expenditure. You pay for what you consume, measured continuously, with no commitment to capacity you are not using. Buying a server means paying for peak capacity forever, whether you use it at 3am on a Sunday or not. Metered utilization means the meter runs only while the resource does. That single shift is what makes rapid elasticity worth anything — releasing capacity saves nothing unless the bill follows it down. What Actually Gets Metered Compute — virtual machine time, usually per second or per hour, priced by instance size. Serverless functions bill per invocation and per gigabyte-second of execution, which can be dramatically cheaper for bursty workloads...