Cloud Service Models - The Operating Model Study

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Cloud Service Models - Deep Dive Into The Behaviors & Benefits

Over the last few years, the cloud has remained to be an integral component of overall business operations and software development. It has unfolded several possibilities for businesses of all sizes and even for individual users to gain easy access to data storage and processing capabilities. Right from powering web-based apps, video streaming, CRM systems, mobile banking, and big data analyses the cloud service models are helping businesses to empower and focus on innovation.

The process of storing and accessing data, software, programs, or services over the internet regardless of any physical hard drives, servers, or mainframes at any instant of time refers to Cloud Computing. Cloud providers such as Amazon Web Services (AWS), Microsoft Azure, and Google Cloud, provide computing resources to users and organizations all over the world. The organizations make use of the cloud to flexibly act based on their dynamic needs and to deliver automated and on-demand access to the resources on a seamless and faster rate. 

To relate it with real-time, the one common factor that Netflix, Slack, Uber, and Dropbox accounts hold is the Cloud. It's the Cloud computing service models that appear to be a way to send messages, stream shows, book rides, share photos, and many more at any time from any internet-enabled device.

Cloud Service Models & Computing Deployment Models - An Extensive Study

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Now let's see the different types of cloud computing service models and their functionalities. Generally, cloud computing offerings and deployment models are classified as public, private, hybrid, and multi-cloud.

Public Cloud

- The public cloud computing model generally remains open for use by the general public or by large industry groups.

- It operates on the multitenant model and so multiple users from different organizations can access the service at the same time.

- In this model, the third-party cloud service providers (like Alibaba, Amazon, Google, and Microsoft) hold on to the ownership and provide maintenance and management for the users.

- The on-demand capability allows dynamic resource allocation based on users' requirements and the users get to access the cloud services via the internet.

- The public model is normally used for less-integral applications or operations and typically mounts for single users and small and medium-sized businesses.

- Simply the public cloud model can be stated as Shared, On-Demand Infrastructure, and Resources & Third-Party Provider.

Private Cloud

- In this private cloud computing model, businesses get to operate with their cloud computing infrastructure and the users get to access the resources on-demand over a private network connection set up by their company.

- Being private within the organizations this cloud model allows running their resources and infrastructure more secure and controlled. 

- Usually, these models are used for sensitive data or applications, and for operations that require a high level of control and security. Moreover, the cloud gets shared only when the owner chooses to.

- The sectors like healthcare organizations, government agencies, financial institutions, and telecommunication companies make use of this model at a wide range.

- In this model, the organization is the one responsible for paying for the acquisition, deployment, and maintenance costs and the resources can be allocated dynamically based on users' demands.

- Simply the Private Cloud model can be stated as Dedicated, On-Demand Infrastructure, and Resources & Owned Data Center.

Hybrid Cloud

- The hybrid cloud model results as a combination of both public and private cloud models and the combinations occur between the dependable nature of the private cloud and the on-demand capacity of the public cloud.

-  The consistency of the hybrid cloud is made possible through the advantage of the automated, programmable, on-demand public cloud models.

- The model drives in the value from the consistent underlying infrastructure and consistent operations and stands Ideal for businesses that provide services or offer products.

- The simply stated Hybrid Cloud goes like Public Cloud & Private Cloud & Consistent Infrastructure and Operations.

Multi-Cloud Computing

- This cloud computing makes its space when companies can't withstand the usage of a single public cloud and need Google Cloud or Amazon Web Services (AWS) based on their operations need and developers' needs.

- The model exhibits flexibility to the organizations on choosing the cloud model that best fits the application or business needs and so, they tend to go with the multi-cloud route, often with the inclusion of the hybrid cloud.

- The connective products and services that multi-cloud computing own have made companies embrace this anywhere, anyway cloud model while sticking with consistent infrastructure and operations.

- The Multi-Cloud model can be simply stated as Any Combination of Native Public Clouds and Private Clouds.

Business Advantages of Cloud Computing Service Models

- The users get to customize and arrange the cloud computing resources according to their needs and demands.

-  Broad network access allows users to have user-friendly access and cloud-dependent capabilities over any platform.

-  Being a multitenant platform, aids multiple users to use cloud service models and do effective resource pooling.

- Remains as highly measured on accurate users’ usage or consumption levels and details for both users and providers.

- Flexible enough for companies who wish to quickly upgrade or downgrade storage options or move from one as-a-service choice to another without needing to make a substantial change to its current IT infrastructure.

Cloud computing is a great euphemism for centralization of computer services under one server. - Evgeny Morozov

Closer Look At The Cloud Service Models

There are normally three cloud service models to compare, Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). Each of these cloud service models possesses its benefits, as well as variances. Now, for any organization to know how to choose the best choice it is necessary to understand the differences between SaaS, PaaS, and IaaS.

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Software as a Service (SaaS)

SaaS is the most widely used type of cloud service models. Simply, it is a way of delivering applications over the Internet as a service. The service over the internet makes accessibility more convenient by making the installation and maintenance of complex software needless. This could service providers manage, maintain, and have control over the cloud infrastructure on both hardware and software as well as its security.

SaaS is more user-friendly in nature and can be easily adapted and some SaaS examples include Gmail, Google Apps, Salesforce, and Netflix. 

SaaS Benefits:
- Multitenant Architecture
- Easy Customisation
- Better Access
- Automatic Updates 
- High Usage Rates

Platform as a Service (PaaS)

PaaS is where the cloud service providers deliver a platform to clients, enabling them to develop, run, test, manage, and host their applications. It also provides users with computing resources as well as tools and software to develop their apps, including middleware, database management, or the operating system. Similar to SaaS, even the PaaS providers manage, maintain, or have control over the cloud infrastructure as well as its security.

PaaS being mostly used by application developers it requires certain technical skills to operate. Popular examples of PaaS include AWS Elastic Beanstalk, Windows Azure, Google App Engine, and OpenShift.

PaaS Benefits:
- Increased Agility 
- Highly Scalable
- Faster Time to Market
- Cost-effective development of apps
- Centralized and simplified app management

Infrastructure as a Service (IaaS)

Infrastructure as a Service (IaaS) is made of highly scalable and automated computing resources. Here, businesses can opt or purchase the computing resources on-demand and when required. This service type among all the cloud service models is completely self-driven for accessing and monitoring computers, networking, storage, and other services. Unlike SaaS and PaaS, IaaS users have control over the cloud infrastructure as well as its security. 

Highly technical professionals like infrastructure and network architects use IaaS. Common examples of IaaS include DigitalOcean, Amazon Web Services (AWS), Microsoft Azure, and Google Compute Engine (GCE).

IaaS Benefits:
- More rapid innovation
- Resources are available as a service
- Increased scalability, dynamic and flexible
- Reduced startup and maintenance expenses
- Organization retain complete control of the infrastructure

Anything as a Service (XaaS)

Anything as a Service ( XaaS) stands as a single term denoting the extensive variety of services and applications emerging for users to access over the Internet. Businesses under these systems get to innovate faster, extend their customer relationships, and nurture the sale beyond the initial product purchase by using the data generated over the cloud service models.

Anything-as-a-service derives (XaaS) refers to the delivery of anything as a service right from software-as-a-service (SaaS) to storage-as-a-service, desktop-as-a-service (DaaS), disaster recovery-as-a-service (DRaaS), network-as-a-service (NaaS), infrastructure-as-a-service (IaaS) and platform-as-a-service (PaaS), and even emerging services such as marketing-as-a-service, healthcare-as-a-service and more.

XaaS Benefits:
- Allows the shift of capital expenses to operating expenses
- Quick launch of new apps and business processes
- Creates space for new projects

To conclude, the cloud on being a broad concept that covers a lot of online territories never fails to be an exciting topic right from small businesses to global enterprises. Cloud computing has completely revolutionized the way IT departments manage and deploy infrastructure. Whether its SaaS, PaaS, or IaaS, there are always suitable cloud service models to virtually fulfill all business needs. On considering switching your business to the cloud, either for application or for infrastructure deployment, it is more important to understand the differences and advantages of the various cloud services. On that note hope, this article eases you with the right features and benefits of cloud strategy and technology.

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