What are cloud architectures?

Cloud architectures and solutions

It is now impossible to imagine everyday business without the cloud. These services have a clear architecture that is required for cloud operation. There are different cloud architectures, so the services provided also differ.

What are cloud architectures? 

The cloud architecture defines the way in which the applications and data can be accessed. There are a number of options as to how a cloud is aligned. A distinction is initially made between three forms of cloud:

With Infrastructure as a Service, the hardware in the cloud represents the actual service. These are very elementary services, such as the storage or the computing power of the cloud servers. Accordingly, the user has to take care of many areas of the configuration himself. However, at the same time this gives the freedom to use the resources in the cloud freely.

With a Platform as a Service, parts of the servers are already preconfigured. The service providers of these systems manage the operating system and the middleware. Platform as a Service is used by web developers for development environments or for their own web applications.

Software as a Service refers to concrete applications that are placed entirely in the cloud. The service provider provides the entire service and the data is also stored in the cloud.

In addition, the cloud architectures differ according to how access is regulated. There are essentially four different cloud architectures:

  • Public cloud
  • Private cloud
  • Hybrid cloud
  • Multi cloud

In a public cloud, a service provider offers a uniform cloud solution that is the same for all users. Microsoft OneDrive is an example of such a solution. The private cloud is an individual solution that is only used by one company.

Hybrid and multi cloud are hybrid variants of these two architectures. In a hybrid cloud, several forms of public and private cloud are used in combination. They form one infrastructure. A multi-cloud, in turn, consists of several cloud services with the same function, which are used jointly and simultaneously.

What cloud solutions are there?

The choice of modern cloud solutions is very broad. Cloud service providers now offer a wide range of different solutions. This starts with simple services such as storage or computing power. Cloud solutions are also used for data backup.

A large area of cloud solutions is applications. These are mainly found in the SaaS area. In addition, there are even cloud services in the area of IT security. These include, for example, Firewall as a Service or SOC as a Service.

How is a cloud structured? 

The structure of a cloud usually follows a clear standard. At the center is a server, which forms the basis for the cloud as hardware. It is located in a data center and is connected there to the Internet with high bandwidth. Users of the cloud services then connect to the cloud server via the Internet.

The architecture is then set up on the cloud server. It differs depending on the type of cloud. In the case of SaaS, for example, specific applications run on the server. In the case of Platform as a Service, it is software frameworks. Infrastructure as a Service, on the other hand, provides direct access to the server's resources, such as storage or computing power.

Further information

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Overview page of our knowledge pages on the topic of cloud

Public Cloud

Read this text to understand the features and benefits of public cloud services offered over the Internet by companies such as Google, Microsoft, and Amazon. Learn how the public cloud infrastructure works and what critical issues of security and reliability need to be considered. A schematic representation of the hosting infrastructure is also shown.

Hybrid Cloud

Learn what hybrid clouds are and how enterprises use them to extend their network capabilities and protect sensitive data. Also discover a specific hosting architecture with Egnyte.

Private Cloud

Learn how private clouds work and the benefits they offer to businesses. Here you will find an example of how to build a private cloud for SMBs and guidelines for professional setup.

Infrastructure as a Service (IaaS)

Learn more about Infrastructure as a Service (IaaS), the first tier of cloud services that offers hardware resources such as servers, storage and networks, as well as associated software, as a service, with the ability to scale on-demand.

Platform as a Service (PaaS)

Learn more about Platform as a Service (PaaS), the second layer of cloud services that adds pre-built software environments to the infrastructure and enables rapid development and release of software applications. PaaS gives developers the ability to focus on programming without having to worry about the underlying infrastructure.

Software as a Service (SaaS)

Learn more about Software as a Service (SaaS), the third layer of cloud services that provides end users with web-based software without having to deal with technical requirements. SaaS offers high accessibility, collaboration features and secure data storage, while service providers benefit from easy software installation and maintenance.

Software as a Service Solutions - SaaS

In recent years, Software as a Service has become widespread in the field of cloud computing. SaaS is a form of service. Here, software including infrastructure is provided via the cloud. Microsoft 365 is an example of Software as a Service.

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