What are the key differences?
SaaS, PaaS, and IaaS all have critical roles to play in the cloud computing ecosystem. But what are the key differences between them?
To understand the differences more clearly, it’s helpful to consider the three services in a logical order, starting from the one that’s closest to the hardware (IaaS), followed by the one in the middle (PaaS), then the one that’s closest to the end-user or consumer (SaaS). Let’s go.
IaaS vs PaaS
A good way to think about IaaS is as the foundation for creating a cloud-based service, such as software or an e-commerce website. IaaS is where the infrastructure is built. In contrast, PaaS is a platform that allows developers to build apps without having to host them.
PaaS vs SaaS
IaaS is the underlying foundation and PaaS is the platform that hosts apps. SaaS is the software that helps businesses or consumers accomplish a wide range of tasks. With SaaS products, the provider manages all aspects of the product, from the applications to the data to the servers – so the end-user can focus simply on using the tool.
In a nutshell, IaaS provides access to resources such as virtual machines and virtual storage, PaaS provides execution environments, application development, and deployment tools, and SaaS provides software as a service to end-users. Which one you choose depends entirely on the needs of your business.