Differences and connections between SAAS, PAAS, and IAAS

SAAS, PAAS, IAAS Difference and Contact

SaaS is the abbreviation of Software-as-a-Service (software as a service) (that is, the functions provided by your application software, such as the background application or front-end APP application running on a website)

PaaS is Platform Abbreviation for -as-a-Service, which means Platform as a Service. (that is, to provide an operating environment or software platform for you to run your application software, such as linux, etc.)
The so-called PaaS actually refers to the software development platform (defined by CCW as a business basic platform) as a service, with SaaS. The schema is submitted to the user. Therefore, PaaS is also an application of the SaaS model.

IaaS (Infrastructure as a Service), that is, infrastructure as a service. (Hardware rentals such as Alibaba Cloud belong to this part of the service content)