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 rent of 3,000 yuan.
If you want to upgrade to phone number list 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. (2) What is the essence of SaaS? SaaS is a software delivery model. SaaS does not deliver the final software product to the user, the software exists as a service used by the user, and it is equivalent to renting rather than purchasing the software. SaaS providers will care about necessary fixes, such as upgrading or operating the entire infrastructure, and will perform routine maintenance, such as security patches and performance optimizations.
It's like I pay a hosting company on a monthly basis, not for the physical item of a single room in the apartment, but for paid services such as room use, luxury decoration, water and electricity grids, and security systems. SaaS users are more responsible for "interior decoration" and operations, including software customization, adding users and managing security permissions. Just like I rented this single room, I didn't have the right to remodel the room structure and knock down the load-bearing walls. (3) Who owns the SaaS? The software ownership of SaaS belongs to the software provider, and the software provider is responsible for maintaining the normal operation of the system. I spent money, it does not mean that the house belongs to me, but to the hosting company; the hosting company is responsible for the daily operation.