Fundamentals of DevOps and Software Delivery » FAQ

How does IaaS compare to PaaS?

IaaS gives lower-level control over compute, networking, and storage, while PaaS provides higher-level application hosting abstractions with less operational overhead. PaaS speeds delivery early; IaaS offers more flexibility as requirements grow.

Practical guidance

  • Use PaaS for fast starts and small teams prioritizing speed to market.
  • Use IaaS when you need custom runtime, networking, or architecture control.
  • Account for lock-in trade-offs versus operational effort.
  • Plan a migration path before growth makes platform transitions risky.

Relevant chapters from the book