In a platform as a service model, which stack is the responsibility of the consumer?

In a platform as a service (PaaS) model, the consumer is primarily responsible for the applications they develop and deploy on the platform. PaaS provides a framework that allows developers to build, run, and manage applications without dealing directly with the underlying infrastructure such as servers, storage, or networking components. This model abstracts those lower layers, meaning that the service provider manages them, enabling developers to focus solely on the design and functionality of their applications.

While consumers might have minimal control over some configurations, their central responsibility revolves around writing, deploying, and maintaining their applications. This distinction highlights the efficiency of PaaS, as it allows teams to streamline their workflows and dedicate resources toward application development rather than managing lower-level stack components that are typically handled by the PaaS provider.