Software as a Service is a pretty big trend in the industry. SaaS can be defined as a relatively new software distribution model giving customers access to applications over the internet rather than requiring physical media and custom installation. Unlike traditional software that runs on a computer's own memory, a large majority of the processing used by SaaS software takes place on a centralized server, with only the user interface running on your computer or a smartphone.

SaaS applications - an acronym for Software As A Service, is a type of cloud computing. That is, SaaS is a software licensing and delivery model in which software is licensed on a subscription basis along with being centrally hosted on a central server. There are three storage models for SaaS applications

SaaS is the acronym for Software as a Service.  It can enable users to connect and use cloud-based apps on the internet. That is, the location of SaaS applications will be on the internet and can be accessed by users from any region.  However, the supporting infrastructure, middleware, software, and data are located in the service provider’s data center. The biggest advantage of SaaS application development is that it removes the required costs of purchases and installation as well ongoing costs such as maintenance or upgrades.