Software As A Service (SaaS) is a software distribution model in which applications are by a third-party vendor and made available to customers over the Internet.

SaaS applications are typically licensed on a subscription basis, with customers paying a monthly or annual fee to access the software and receive and support.

By using SaaS, organizations can reduce costs by avoiding upfront expenditures on hardware and software licenses, and instead pay for what they use on a pay-as-you-go basis.

SaaS providers must ensure the security and privacy of customer data, often through and other security measures.