Measured Service — Enabling Pay-As-You-Go Billing in Cloud

Quick Answer

Measured service is the cloud concept that matches a requirement to meter compute and storage usage for consumption-based billing, because metering — tracking exactly how much of a resource was used — is the defining mechanism behind any pay-as-you-go pricing model. Rather than charging a flat rate regardless of actual usage, measured service relies on continuous monitoring of resource consumption, whether that is storage capacity, compute hours, or API calls, with that captured usage data feeding directly into billing calculations. This is the same principle behind services like Azure Monitor tracking resource consumption to generate accurate invoices, and it applies conceptually across Microsoft's cloud offerings wherever usage-based charging exists. The service owner's specific interest in metering usage for billing purposes — rather than in scaling capacity or sharing infrastructure across tenants — is what identifies measured service as the answer rather than rapid elasticity or resource pooling, both of which describe different NIST cloud characteristics entirely.