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Cloud deployment models

Businesses are looking for cloud computing services that can help them run their infrastructure more efficiently, lower IT operating costs, and scale as their business changes. These different demands have made it clear that there isn’t one cloud model that fits all. 

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Public cloud

Companies and organisations can use four different methods to deploy cloud service resources:

  • Public cloud
  • Community cloud
  • Private cloud
  • Hybrid cloud

The most well-known cloud computing type is the public cloud. This is the cloud service type offered by third-party providers over the public internet, meaning they are available for everyone to use or purchase. Examples of such services are Microsoft Azure, Google Cloud, Dropbox, and Amazon Web Services. 

A public cloud is a large data centre that offers the same services to all its users. All hardware, software, and other infrastructure are managed and owned by the cloud provider. This can save organisations from expensive costs as it is the cloud service provider who is responsible for maintaining and managing the system.

Another advantage is that public clouds can be delivered as an almost infinitely scalable platform, and can be deployed faster than on-premise infrastructures. 

You might also be interested in reading our blog article about cloud deployment models.

​Community cloud

A community cloud is a shared cloud computing service that is targeted to a limited set of organisations or employees. The infrastructure is shared between several organisations within a specific community. This can then be managed either internally or by a third-party hosting provider. 

This can be beneficial for organisations that want to connect customers, partners, and employees to enable better collaboration and sharing of data between the parties.

Illustration of community cloud

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​Private cloud

A cloud vendor may also offer a private cloud to their customers. In private clouds, the computing services are offered either over a private internal network or over the internet–and only to selected users. 

Private clouds offer businesses many of the benefits of a public cloud, but with additional control and customisation. The difference is that there is a separate hardware environment in the data centre, which makes it more suitable for sensitive data. It can be physically located on the company’s own on-site data centre or hosted by a third-party service provider. 

One of the downsides of a private cloud is that the company’s IT department is responsible for the accountability and cost of managing the cloud. This is similar to traditional data centre ownership.

Both infrastructure as a service and (IaaS) and platform as a service (PaaS) can be delivered in a private cloud. 

​Hybrid cloud

As the name suggests, a hybrid cloud is a combination of public and private cloud. This gives businesses even greater flexibility and helps to optimise the existing infrastructure, security and compliance. It also gives more deployment options, because data and applications can be shared between private and public clouds. 

It also gives organisations better control over their private, sensitive data. This is especially important in some industries where there are regulations that require certain types of data to be stored on-premises. 

With a hybrid cloud, companies and organisations can benefit from the flexibility of the public cloud for computing tasks that are less regulated. At the same time, it helps them meet their industry requirements for more sensitive data. 

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