Cloud Service Models — Full SRE Lecture: IaaS, PaaS, SaaS

🌐 The Big Picture First Think of cloud service models as a spectrum of responsibility . The more you move right, the less you manage — but also the less control you have. YOUR RESPONSIBILITY ◄────────────────────────────────────────────► Maximum Minimum On-Premises → IaaS → PaaS → SaaS → Serverless A useful analogy is pizza : On-Premises = Make pizza at home (you own everything) IaaS = Order dough & ingredients (you cook it) PaaS = Order pizza kit (just assemble & bake) SaaS = Order del