SOFTWARE ENGINEERING

Detailed explanation-1: -Companies that use SaaS don’t have to manage their data use or maintain their applications. With PaaS and IaaS, however, users must manage their own data use and applications. SaaS and PaaS providers manage organizations’ operating systems, but IaaS users must handle their own operating systems.

Detailed explanation-2: -Serverless computing: Serverless is a broad category that refers to any situation where the cloud consumer doesn’t manage any of the underlying hardware or virtual machines, and just accesses exposed functions. For example, there are serverless platforms for directly executing application code.

Detailed explanation-3: -IaaS Delivery IaaS clients can still access their servers and storage directly, but it is all outsourced through a “virtual data center” in the cloud. As opposed to SaaS or PaaS, IaaS clients are responsible for managing aspects such as applications, runtime, OSes, middleware, and data.