Understanding Hybrid, IAAS, PAAS and SAAS

Platform Model Control Types for Hybrid, IAAS, PAAS and SAAS

System Architecture Stack - What a company/user/agency controls in Cloud platforms.

This shared use stack also explains what your responsible for maintaining and managing in the Cloud.

1. Hybrid: Datacenter/Server Room or agency controlled infrastructure
2. IAAS: Infrastructure as a service (AWS, GCP, Azure, IBM, Rackspace, etc)
3. PAAS: Platform as a Service (Lambda, Cloud Functions, AWS RDS)
4. SAAS: Software as a Service (Office365, Google G-Suite, Salesforce) - Technology upgrades, enhancements, changes, etc are by the vendor only.

What do you actually control as a customer?