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The 3 Basic Types of Cloud Service Models

The 3 Basic Types of Cloud Service Models

Cloud service or computing has been around for close to two decades and can be seen as the on-demand availability of computer system resources, such as servers, databases, software, virtual storage, networking and computing power, among others, without direct active management by the user.

This rapidly-growing industry has allow companies to move beyond on-premise IT infrastructure to internet-based services, offering services such as software, storage, and processing at affordable prices. Instead of relying on their servers, companies can now outsource their computing needs to cloud service providers, passing over the responsibility of supporting the infrastructure and assuring security to cloud providers.

Cloud computing delivers a lot of benefits for businesses and industries, which has led to a growing demand and adoption of it. Some of these benefits include scalability, cost, accessibility, security and data backup.

However, Cloud computing comes with its own pros and cons and can be delivered in three different ways/types namely Public cloud – computing services made available over the public internet, Private cloud – offered over the Internet or a private internal network and are only available to selected users instead of the general public and Hybrid Cloud – which combines both private cloud with public cloud.

There is also another set of delivery model for cloud service that organization can choose from especially to suit their need and preferences, detailed below:

 The 3 Types of Cloud Service Model

  1. Infrastructure as a Service (IaaS)

This is a form of cloud computing where providers make available virtualized computing resources over the internet including server, networking resources, development environment, private networks, secure data storage, instruments for software development and testing, functionality monitoring, etc.

These services are charged under a “pay as you go” model where customers are billed according to how much storage and processing power they consume over a certain period. And users also need not to worry about managing these infrastructure because it is totally up to the provider to guarantee the proper functioning and availability of these resources.

  1. Platform as a Service (PaaS)

This cloud service model offers access to a cloud-based environment in which users can build and deliver applications without the need of installing development environments, APIs, and deployment instruments. With PaaS, developers can focus on writing code and create applications without worrying about IT infrastructure activities such as provisioning servers, storage and backup, making it easier and faster to develop, test and deploy applications.

In PaaS, users are billed only for the platforms that they use for the time when the services were used and users can often customize the features they want included with their subscription.

  1. Software as a Service (SaaS)

Here, cloud providers offer applications that are accessed over the web and are not managed by the customers or users but by the software provider, relieving users from concerns such as software maintenance, infrastructure management, network security, data availability, and all the other operational issues.

Instead of purchasing the solution one time, the software is delivered continuously — like a service and it further offers security, compliance, and maintenance as part of the cost – usually a monthly subscription fee.


Understanding the cloud service models is critical in determining if cloud services are an appropriate business solution for your company, and if so, which model best balances the level of control required compared to the reduced hardware, configuration, maintenance costs as well as the realization of business objectives.

Organizations has to first of all develop a cloud strategy before jumping into this wagon, however If you are considering switching over to cloud infrastructure instead of maintaining local network, and you need a proper guide on how to deploy cloud computing, contact us at Podtech – we are proficient in helping customers accelerate their cloud journey, enabling business-critical workloads to move to the cloud in few days as well as accurately deploy SaaS, PaaS or IaaS solutions across public, private (or on premise) or hybrid cloud environment.