Which of the following best identifies the role of SaaS in cloud computing?

SaaS, or Software as a Service, is a major model of cloud computing that delivers software applications to users over the internet. The key characteristic of SaaS is that it provides fully functional applications that users can access without the need for installation or maintenance on their local devices. This means users are able to utilize the software directly through a web browser, which simplifies access and enhances usability.

By having applications hosted in the cloud by a service provider, users benefit from the advantages of not having to worry about infrastructure management, software updates, or backend services. Instead, they can focus on leveraging the software to meet their specific needs, such as productivity, collaboration, or data analysis.

This clear distinction showcases the significant role SaaS plays in cloud computing, as it enables businesses and individuals to utilize powerful software tools efficiently while relying on the service provider to manage the complexities of the underlying infrastructure and application deployment.