The full English name of SaaS is Software as a Service, which means software as a service, which is one of the service modes of cloud computing.
SaaS is a way to provide centralized hosting of applications over the Internet, which is generally used by enterprise users through clients or web pages without the need to purchase, install or maintain any software and hardware. Therefore, SaaS applications are also called "web-based software" or "hosted software".
In order to better understand the concept of SaaS, let's use renting as an example: I want to rent a single room, with complete facilities, and the lease term is half a year; the hosting company has a property that meets my needs: a single room in an apartment building , Refined decoration, complete furniture and electrical appliances, all-inclusive water and electricity network property, monthly phone number list rent of 3,000 yuan. If you want to upgrade to a luxuriously decorated single room, then add 1,000 yuan to the basic rent, that is, 4,000 yuan per month, which is called pay-as-you-go.
There is no need to purchase building materials to build a foundation to build a building, nor do I need to spend money on decoration and furniture, because the hosting company has provided me with a complete set of services and resources.
In fact, we are dealing with SaaS cloud services almost every day, such as SAP, Baidu cloud network disk and other products we usually use.