What distinguishes SaaS from on-premises software?

The distinguishing feature of Software as a Service (SaaS) is that it is accessed via the internet, while on-premises software is installed locally on a user's computer or server. This means that users can access SaaS applications from any device with internet connectivity, allowing for flexibility and remote access that is not typically available with on-premises solutions.

In the context of SaaS, the software is hosted and maintained by a service provider, which takes care of updates, security, and infrastructure. This contrasts with on-premises software that requires organizations to manage their own hardware and software installations, including any necessary updates or maintenance.

This distinction is fundamental to understanding the advantages and disadvantages of each model. SaaS solutions often enable faster deployment and lower upfront costs since they do not require significant investment in hardware or software licensing. However, organizations using on-premises software might benefit from greater control over their applications and data security, depending on their specific needs and infrastructure capabilities.