How Responsibility Shrinks Up the Stack
Interpret how customer responsibility changes as service abstraction rises from IaaS to PaaS to SaaS.
Read the responsibility bars as a teaching model for how customer-operated layers shrink as abstraction rises. Customer-operated layers in a 7-layer teaching stack IaaS customer side VM workload: data, app, runtime, guest OS, selected network controls 5 of 7 layers PaaS customer side Managed platform: app code and service configuration 2 of 7 layers SaaS customer side Finished app: tenant users, data, and settings 1 of 7 layers More customer-operated stack Shared platform surface Smallest customer operation surface What does the shrinking customer-operated bar mean as a team moves from IaaS toward PaaS or SaaS? The customer operates fewer stack…
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