Cloud Computing Types
Two key features of previous chapter cloud services: Service Analysis Level (IAS, PAS, SaA, SAS, and BPAS) and Deployment Models (Public, Private, Hybrid, and Community Cloud). This chapter is deep in abstract and deployment models.We will compare the features of their component role in cloud-based cloud computing and build a large number of them. Remember the classic computing appreciation from the previous chapter? There are five key features in cloud computing:
1. wide network access,
2. Demand self-service,
3. Resources polling or joint services,
4. Fast flexibility, and
5. Measurement Service.
Each of these features is required to serve for a service to qualify as a cloud service. It is very expensive to understand this, because otherwise, it is not just cloud service despite the claim of cloud service providers. Apart from this, there will definitely be no discussion in this chopper. In this way, we are all common in five models of cloud computing, all deployment models and analysis levels that consider this chapter.First of all, there are a few new concepts that I believe we need to consider the cloudwork analysis. Such a concept is celebrated with objection-related design (OOD) principles. Another concept is cloud cell. This is a special reflect cloud that is just one thing, such as data storage, database service, or serving web pages for ex-pages. You can create a cloud application that uses cloud sales to make cloud service you can use. This novel concept is that you can reuse many cells and different collections and relatives.
Service models can be viewed according to the growing levels of analysis. As you move the top stack, your business processing is the largest form of analysis at a service (BPAS) level. It’s clear Remember that every high level adds its level below. It is to say, the Software (Sao) software has provided a business function to a software and at the same time it provides a platform as a service. And as a service platform provides an operating environment besides the infrastructure as a service (IAS). Depending on the offer of Table 2 service, the list of cloud computing’s five analysis levels describes the listings. The difference between the notice abarchion level in the table. It is easy to make one service fault for each other, especially when the marketing departments of different cloud service providers begin to be brave in their appreciation. For example, suppose you should be provided with IaaS. The service provider will install you before the operating system, because they do not want to keep you infrastructure because of security reasons, the service offer is still IaaS, not a PAS, although it is an operating To become a system installed PAS, the service provider will need to install the necessary software that it will require your application to run.
This ad-ditional software can be software libraries that perform set tasks, a framework such as .Net that includes a standard set of libraries, or even an application stack such as LAMP (Linux-Apache-MySQL-PHP or Perl) that includes a web server (Apache), a database (MySQL), and a programming language with its libraries (PHP or Perl) hosted on a Linux server. Once you use the IaaS (or the PaaS) service to write