Cloud architecture

Cloud architecture defines how the enabling technologies will be adapted when building the clouds. Clouds are IT environments in which resources to be deployed are distributed, aggregated, and generalised in pools across the network. Cloud architecture also defines how the functions and components required to create a cloud are all interlinked to create an online platform.
What is cloud architecture?

Cloud architecture consists of components and various sub-components located in the cloud. In this context, the NIST SP 500-292 architecture focuses on entities. These are cloud users, the provider, and the auditor. The technology cannot exist without these entities.

The Cloud Architecture can be divided into a four-tier taxonomy. This includes the activity, the role, the component, and the sub-component. When examining the architecture, it is important that it is made clear who will be carrying out certain tasks and with which tools.

Activities within the cloud architecture

Activities within the cloud architecture define access to PaaS, SaaS and IaaS and how they are used. This also includes audit, orchestration, and security.

Orchestration is the coordinated management in the cloud environment to achieve the corporate objectives using the cloud.
Audit involves assessing the cloud provider’s performance, security, and compliance. In this case, the audits are carried out by external providers.
Security must always be examined, and ranges from openness to integrity and availability.
Confidentiality prevents the exposure of sensitive data. It is essential to guarantee that only authorised users have access to the data.
Integrity ensures confidence that the system and data have not been altered and that the system and data can be trusted.
Availability ensures that the systems and data are usable and accessible when needed.
The architecture components are selected with a defined goal in mind. In the cloud, it must first be defined whether a private cloud, a public cloud, or a combination of both is the optimal choice for the respective company.

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