Software As A Service Definition Gartner. Final data for 2016 shows that software as. SaaS is one of three main categories of cloud computing alongside infrastructure as a service and platform as a service IaaS and PaaS.
Final data for 2016 shows that software as. The provider delivers software based on one set of common code and data definitions that is consumed in a one-to-many model by all contracted customers at anytime on a pay-for-use basis or as a subscription based on use metrics. The big threeand most commonare software as a service SaaS infrastructure as a service IaaS and platform as a service PaaS.
What do I need to know about SaaS.
Gartners definition is along these lines with the off-premises nature of cloud services being the point of reference and applicability to intra-enterprise use as a secondary effect. The second popular interpretation is built on technologies basement where virtualization and automation are the main leitmotif and all spot lights are focused on the computing. Software-as-a-Service describes software deployed in the cloud and billed on a subscription basis. In most cases the software is available off the shelf meaning that you can buy it from a third-party vendor make a few tweaks and begin using it nearly immediately even if it hasnt been totally customized to your system.