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Deploying the company's IT infrastructure in the cloud: SaaS, PaaS, IaaS

Today, a wide range of cloud-based IT solutions is available for small and medium-sized companies. When ordering a cloud service, the customer chooses to purchase or rent computing resources, storage resources and data transfer in the data center. Users of cloud services need only to know how to connect to resources and how to start the application to complete the work. It is not necessary to know the specific location of the data center, or how the resources in the cloud work or maintained.

Software as a service (SaaS) is an on-demand software delivery service. On-demand software delivery services can vary in pricing schemes as well as the way applications are delivered to end users. Companies that provide software on demand, charge their customers the cost of a subscription to the service. This service involves the deployment of software on data center servers, which is available to remote users via the Internet. Companies supplying the software according to the traditional model sell licenses to their customers; subsequently, the customers themselves deploy the software acquired on their servers and accompany it.

Platform as a service (PaaS) - PaaS covers the levels of management and maintenance in a cloud computing model. This concept is developing dynamically, and gradually includes intellectual resources, as well as management at the application and network levels. This technology refers to products that are deployed over the Internet. Many companies that started their activities as service providers of software on demand, eventually developed their own platform for providing services. Amazon, Google and Microsoft have developed platforms that allow users to access applications deployed on centralized servers.

Infrastructure as a service (IaaS) is the third segment of cloud computing technology, infrastructure can become the basis for the whole concept of cloud computing. Infrastructure as a service is a basic level of cloud computing and includes storage, computing, backup, disaster recovery, database management, and security provided by the infrastructure provider. Cloud storage, such as Amazon S3, also belongs to the infrastructure segment.

The IT-Enterprise system is available in SaaS variant (as a Clobbi cloud service) or on-premise (on the customer’s own IT infrastructure). In the case of on-premise, it is recommended to use IaaS infrastructure from leading data centers.

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