Software as a Service (SaaS) is a type of cloud computing service that delivers software applications over the internet, on a subscription basis. SaaS providers host and manage the software applications and make them available to customers over the internet, typically using a web browser.
SaaS applications are designed to be easy to use and accessible to a wide range of users, regardless of their technical expertise. They are often used to replace traditional desktop software, such as productivity suites, customer relationship management (CRM) systems, and accounting software.
SaaS providers handle the maintenance and updates of the software, as well as the underlying infrastructure and security. This allows customers to access the latest versions of the software without having to worry about upgrading or patching their own systems.
SaaS is built on top of Platform as a Service (PaaS) and provides a higher-level abstraction of the underlying platform. Customers can use SaaS applications without having to worry about the underlying platform, the infrastructure, and the software development. This allows them to focus on their business and how the software can help them achieve their goals.
Examples of well-known SaaS providers include Salesforce, Microsoft Office 365, Google G Suite, Zoom, and Dropbox.