In which service model does the cloud service provider take responsibility for the application infrastructure management?

In the Platform as a Service (PaaS) model, the cloud service provider is responsible for managing the application infrastructure, including the platform that the application runs on. This encompasses the operating system, storage, networking, and database, allowing developers to focus on writing code and developing applications without worrying about the underlying hardware or software layers.

PaaS provides a complete development and deployment environment in the cloud, which streamlines the development process and enhances productivity by offering built-in tools for development, testing, and deployment. This model is particularly beneficial for developers because it eliminates the complexities of infrastructure management and allows for rapid application development.

While Infrastructure as a Service (IaaS) provides users with virtualized computing resources over the internet, the user still needs to manage and maintain the operating system and any applications they develop. Software as a Service (SaaS), on the other hand, delivers complete software solutions managed by the provider but does not typically involve the user in the infrastructure management aspects. On-Premise refers to software and infrastructure that are housed within an organization’s facilities, which requires full management by the organization itself. This makes PaaS the optimal choice for application infrastructure management by the provider.