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November 23, 2022

Types & Service Models of Cloud Computing

Samay Thakkar
Samay Thakkar

Cloud Computing is like an advanced modern-day engine, which gives your business a power-packed boost by enhancing the performance & productivity of your business in the most cost-efficient manner and with low maintenance costs. Moving your existing business applications to the Cloud is a very smooth process.

With the selection of the right Cloud deployment & Cloud service model for your business, you can take your business to greater heights. There are different types of Cloud deployment models & Cloud service models that a business can adopt to get the best out of them.

In this blog, we will help you with information about the types of Cloud deployment models & Cloud service models so it will become easier for you to decide which is best for your business.

Types of Cloud Deployment Models

Earlier, cloud deployments were easy to select from; however, with advanced technology, performance improvements, and upgrades over time, the cloud deployment types have grown wider & become more effective over time.

Let us walk you through the three types of cloud deployment services, so it becomes easier for you to make the selection.

1. Public Cloud

In the Public Cloud model, services, infrastructure, and resources are shared between multiple users (Organisations) called ‘Tenants’. The entire Cloud Computing Infrastructure is owned & operated by 3rd Party Cloud Service Providers and located on their premises.

This is the most feasible & cost-efficient Cloud model for small-scale businesses, and they don’t need to invest in IT infrastructure. Public Cloud services are provided on a pay-as-you-go billing model (based on the usage of IT resources consumed).

2. Private Cloud

Private Cloud Model is for those businesses who prefer security & complete authority level of the Cloud infrastructure, with deployment behind a firewall and no sharing with any other organisation like in Public Cloud Model.

Costs are borne by the organisation, not by a 3rd party Cloud service provider.

Users working in the organisation can access the private Cloud from anywhere with the help of an Internet Connection.

Private Cloud can host in-house or externally on-site, giving the customisation flexibility to meet organisation-specific needs & requirements.

At Calidad Infotech, you have an option of dedicated Clouds (Cloud within a Cloud) which means you can have a Cloud for dedicated/particular Cloud which can host a private Cloud.

3. Hybrid Cloud

Hybrid Cloud is an amalgamation of both private & public Clouds. In Hybrid Cloud, data & applications are shared between private & public Clouds. It allows data & applications to work between both Clouds, giving your business increased flexibility & resilience, more deployment options, and optimised & effective infrastructure.

With Hybrid Cloud, you can deploy your crucial data & applications on the private Cloud & publicly accessible data & applications on the public Cloud to get the best from both. It is primarily used in scenarios when On-Premises Cloud Infrastructure needs more scalability to meet fluctuating business demands.

With Public Cloud, the organisation can make the optimum usage of different public Cloud platforms like:

  • Microsoft 365
  • Google Workspace
  • Dropbox to access data from anywhere without worrying about storage space or requiring downloading an additional app
  • Google Drive for storage to upload files & documents, make changes to them, & can reaccess it from anywhere to add information or make the changes
  • Adobe Creative Suite for image and video editing

Types of Cloud Computing Service Models

There are different types of Cloud services that are offered as a stack of services, because of which they are also called Cloud computing stack as they gradually build on top of each other. Each type is different and unique in its way from the other. Let us walk you through all 3 types of models to make it simpler for you to select which model is best for your business.

1. SaaS (Software as a Service)

SaaS is the best cost-saving method for small businesses as the tools in the Cloud are available on a subscription & lease basis like ERP, CRM, Document Management, and more.

The SaaS vendor takes care of everything from infrastructure to hosting, software updates, bug fixes, servers, networking, storage & other general software maintenance.

Businesses don’t have to do any installation or downloading in their existing IT Infrastructure to access it on each of their machines.

Small businesses can access cloud solutions similar to that of an enterprise company. They can access applications over the Internet Connection through a web browser and from anywhere on multiple devices.

2. IaaS (Infrastructure as a Service)

IaaS is the most cost-effective & scalable Cloud model. It offers you Cloud services on a pay-as-you-go model (based on the usage of IT resources consumed).

You are in charge of everything except the infrastructure and you can access to Cloud data storage, networking, and basic virtual servers.

IaaS model is available in all 3 configurations – Public, Private & Hybrid Cloud.

IaaS gives you the luxury of purchasing, configuring, and managing it like your own software which includes operating systems & applications.

IaaS is the smart model choice for small & mid-scale businesses as you don’t have to bear the overhead cost for on-site infrastructure.

3. PaaS (Platform as a Service)

In PaaS, Cloud service providers (CSP) lease the infrastructure that businesses need across the entire application lifecycle, including development, testing, and deployment.

Compared to IaaS, PaaS CSP gives additional features & benefits to the business user by managing all hardware & software services – storage, networking, middleware, operating system, software upgrades, backups, runtime, and more.

PaaS is the most effective model in a business environment with multiple developers.

PaaS is cost-saving as businesses don’t have to purchase or manage software licenses.


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At Calidad Infotech, we provide you with the best-in-class Cloud services by helping you select the most optimum, cost-efficient & effective Cloud type and Cloud service model. We are one of the leading Cloud service consultant & Cloud service provider in India.

Calidad Infotech is your one-stop destination for providing solutions for all your Software Testing, On-Demand Cloud, & DevOps Services.

We are serving & catering Cloud services needs from small-scale businesses to mid-sized to enterprise level. We have a team of skilled Cloud Consultants who understand your business requirements, analyse the challenges, and work on customised solutions to enhance your business’ manoeuvrability.

Contact us today to get consultancy on selecting the right type of Cloud for your business, Cloud service model, or any other kind of query. You can reach out to us via call at +91-9909922871 or via email at

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