Can you name the most popular cloud service models?
Based on the resources identified, appropriate cloud service model can be selected as below:
- Infrastructure as a Service (IaaS): Infrastructure as a Service offers administrative services and hardware on-demand such as routing servers, store the data and network access for running applications. As IaaS provides the flexible environment, NursesRUs web application can be uploaded, configured and deployed within the user built virtualized systems easily (automatically). The NursesRUs data can be stored efficiently and can be accessed by other branches of NursesRUs whenever needed as they have control over the infrastructure.
- Platform as a Service (PaaS): Platform as a service provides software applications development and deployment platform delivered to developers to build own applications. PaaS consists of middleware, development tools, and databases. In this service, NursesRUs can build their own web page, mobile application, and SMS facility apart from telephone booking, where the customer can access the NursesRUs service and nurses can register from anywhere and anytime.
- Software as a Service (SaaS): Software as a service offers an operating environment for applications with management and user interfaces by vendors for running applications. NursesRUs can buy software to run their applications where they can manage, install or upgrade, as SaaS provides integrated features. SaaS offers privacy and security of applications. As explained in PaaS, NursesRUs can build their own application, in which case, SaaS is not required at all.
- Data Storage as Service (DaaS):