Cloud Services

REFERS TO A WIDE RANGE OF SERVICES

DELIVERED ON DEMAND TO CUSTOMERS OVER THE INTERNET

Cloud Service Benefits

Scalability

Because the cloud service provider supplies all necessary infrastructure and software, there’s no need for a company to invest in its own resources or allocate extra IT staff to manage the service. This, in turn, makes it easy for the business to scale the solution as user needs change—whether that means increasing the number of licenses to accommodate a growing workforce or expanding and enhancing the applications themselves.

No Capital Expense

Many cloud services are provided on a monthly or annual subscription basis, eliminating the need to pay for on-premises software licenses. This allows organizations to access software, storage and other services without having to invest in the underlying infrastructure or handle maintenance and upgrades.

Flexibility

With cloud services, companies can procure services on an on-demand, as-needed basis. If and when there’s no longer a need for a particular application or platform, the business can simply cancel the subscription or shut down the service.

What types of Cloud Service are there?

Software as a Service (SaaS)

The most widely recognized type of cloud service is known as software as a service, or SaaS. This broad category encompasses a variety of services, such as file storage and backup, web-based email and project management tools.

Examples of SaaS cloud service providers include Dropbox, G Suite, Microsoft Office 365, Slack and Citrix Content Collaboration. In each of these applications, users can access, share, store and secure information in “the cloud.”

Infrastructure as a Service (IaaS)

Infrastructure as a service, or IaaS, provides the infrastructure that many cloud service providers need to manage SaaS tools—but don’t want to maintain themselves. It serves as the complete data center framework, eliminating the need for resource-intensive, on-site installations.

Examples of IaaS are Amazon Web Services (AWS), Microsoft Azure and Google Compute Engine. These providers maintain all storage servers and networking hardware, and may also offer load balancing, application firewalls and more. Many well-known SaaS providers run on IaaS platforms.

Platform as a Service (PaaS)

The cloud service model known as platform as a service, or PaaS, serves as a web-based environment where developers can build cloud apps. PaaS provides a database, operating system and programming language that organizations can use to develop cloud-based software, without having to maintain the underlying elements.

Many IaaS vendors, including the examples listed above, also offer PaaS capabilities.

Cloud Service Delivery

Public cloud services
Services that a provider makes available to numerous customers over the web are referred to as public cloud services. The SaaS, IaaS and PaaS examples noted above are all providing public cloud-based services. The biggest benefit of using public cloud services is the ability to share resources at scale, allowing organizations to offer employees more capabilities than would likely be possible alone.
Private cloud services
Services that a provider does not make generally available to corporate users or subscribers are referred to as private cloud services. With a private cloud services model, apps and data are made available through the organization’s own internal infrastructure. The platform and software serve one company alone, and are not made available to external users. Companies that work with highly sensitive data, such as those in the healthcare and banking industries, often use private clouds to leverage advanced security protocols and extend resources in a virtualized environment as needed.
Hybrid cloud services
In a hybrid cloud environment, a private cloud solution is combined with public cloud services. This arrangement is often used when an organization needs to store sensitive data in the private cloud, but wants employees to access apps and resources in the public cloud for day-to-day communication and collaboration. Proprietary software is used to enable communication between the cloud services, often through a single IT management console.

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