Software as a Service (SaaS) is a cloud computing model where software applications are delivered over the internet, rather than being installed locally. SaaS providers host the application on their servers, allowing users to access it via a web browser. This model eliminates the need for maintenance, installation, and updates, as these tasks are handled by the provider. Businesses benefit from lower upfront costs, scalability, and remote accessibility. Additionally, SaaS applications often utilize a subscription-based pricing model, making them financially manageable for organizations of various sizes.