SaaS – Software as a service is a software licensing and delivery model in which software is licensed on a subscription basis and is centrally hosted, normally using cloud services. SaaS is considered to be part of cloud computing
SaaS apps are typically accessed by users from any device with an internet connection and a web browser. SaaS has become a common delivery model for many business applications.
In this web-based model, software vendors host and maintain the servers, databases, and the code that makes up an application.
SaaS has been incorporated into the strategy of nearly all leading enterprise software companies.