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A Gentle Introduction to Everything-as-a-Service (XaaS)

  • Bhumika Dutta
  • Feb 12, 2022
A Gentle Introduction to Everything-as-a-Service (XaaS) title banner

Cloud service providers have been providing cloud computing services to customers from the very beginning. Shutdowns and the difficulty of quickly enabling a remote workforce have necessitated the use of flexible IT solutions. 


Organizations require solutions that enable them to build new business processes, products, and services to stay up in today's quickly changing world.


As cloud technologies are advancing, anything can now be provided as a service using Everything-as-a-service (XaaS).  This is an introductory blog on Everything-as-a-service (XaaS). 



What is Everything-as-a-service (XaaS)?


Everything can be attained as a service from the internet, on request, and the term for these services and applications is Everything-as-a-service. It is also known as Anything-as-a-Service. 


It all began with the cloud computing terminology SaaS (Software-as-a-Service), PaaS (Platform-as-a-Service), and IaaS (Infrastructure-as-a-Service), which imply that ready-made software, a platform for its creation, or a full computer infrastructure may all be delivered over the internet. 


Other services gradually emerged, and currently, the term as-a-Service is connected with a variety of digital components, such as data, security, and communication.


XaaS attempts to turn one-time consumers into service users who profit from the product on an ongoing basis. The notion of servitization is used to encourage individuals to use XaaS.


Also Read | How Cloud Computing Improves Customer Experience?


What is servitization?


With the tremendous popularity of subscription-based business models, more companies are attempting to join in on the action by combining products and services into a single bundle known as "servitization." 


The purpose of servitization must be more than merely extracting more money from clients if it is to succeed. Combining services and goods enables businesses to provide customers with more value than the items or services could deliver on their own.



Different models of XaaS:


We all know about the three popular models of XaaS, namely SaaS, PaaS, and IaaS. Let us learn about them first:


  • Software-as-a-Service:


Software as a Service (SaaS) is a cloud-based software distribution model, often known as the cloud-based software delivery model. Users do not install or execute them on their computers; instead, they subscribe to them like they would any other cloud service.


This SAAS framework may be accessible from any computer with an internet connection. It's possible that the individual utilizing it is hundreds of kilometres away from the cloud library's location.


There are a lot of advantages of SaaS. SaaS is very easy to buy and can be bought at a low cost.  


Because it can be accessed remotely, it requires very little hardware to access and maintain. It may be viewed 24/7, from any web browser on any device. It is also a low-maintenance service, as it is distributed through the cloud with no installation hassle.


  • Platform-as-a-service:


Platform as a Service (PaaS) is a cloud computing service that employs virtualization to provide an application development platform for developers and enterprises. 


A single platform includes computing, memory, storage, databases, and other app development services. PaaS platforms can be used to develop internal or commercial apps.


PaaS combines a virtual infrastructure, such as data centers, servers, storage, and network equipment, with an intermediary software layer, such as app development tools. It may be used in any of the three types of cloud: private, public, or hybrid cloud.


Also Read | Types of virtualization in Cloud Computing


  • Infrastructure-as-a-service:


Infrastructure as a Service (IaaS) refers to the basic computer building blocks, such as real or virtual servers, storage, and networking, that may be hired. Hardware as a Service (HaaS) is another term for IaaS. (HaaS).


IT infrastructure was traditionally rented out for a specific period and with a predetermined hardware configuration. The customer paid for configuration and time regardless of actual usage. 


With the support of the IaaS cloud computing platform layer, clients may dynamically expand the configuration to meet changing requirements, and they are only charged for the services that are really used.


Microsoft Azure, Amazon Web Services, and Google Cloud Infrastructure are some of the most extensively used IaaS examples.

Value visibility to end-users

Value visibility to end-users (Source)

There are other XaaS models that are present in the market other than the above-mentioned popular models, as written by Sam Solutions. They are given below:


  • Communication-as-a-Service:


Communication as a Service (CaaS) incorporates various communication options hosted in the vendor's cloud, such as VoIP (voice over IP or Internet telephony), IM (instant messaging), and video conferencing software. 


A corporation may install communication tools that best fit their present needs for a limited time and just pay for the time they use them. This method is cost-effective and saves money on short-term communication needs.


  • Security-as-a-service:


Outsourced security management is referred to as Security as a Service (SECaaS). 


A security service provider integrates their services into your company's infrastructure and, in most cases, distributes them through the Internet. Anti-virus software, encryption, authentication, intrusion detection systems, and other services may be provided.


  • Desktop-as-a-service:


Desktops are supplied as virtual services, complete with all necessary applications. 


As a result, a client may operate on a personal computer while also benefiting from the computational power of third-party servers. A DaaS provider is usually in charge of storing, safeguarding, and backing up user data, as well as providing updates for all supported desktop apps.


Advantages of XaaS:


There are a lot of benefits of XaaS, according to netapp, some of them are:


  1. Increasing the efficiency of the expenditure model


Businesses can save money by acquiring services on a subscription basis from suppliers using XaaS. Businesses had to acquire separate products—software, hardware, servers, security, and infrastructure—install them on-site, and then link everything together to establish networks before using XaaS and cloud services. 


Businesses may now just buy what they need and pay as they go using XaaS. Previously capitalised costs have now been reclassified as operational costs.


  1. New apps and business processes are being made faster


With new applications or solutions, firms can swiftly adjust to changing market conditions with this strategy. Using multitenant techniques, cloud services may give much-needed flexibility. 


Business executives may easily add or remove services as needed thanks to resource sharing and quick elasticity support. When consumers want creative resources, a corporation may swiftly access new technologies and scale infrastructure automatically.


  1. IT resources are being reallocated to higher-value projects


To streamline operations and free up resources for innovation, IT businesses are increasingly turning to a XaaS delivery model. They're also utilizing the advantages of XaaS to digitally change and become more nimble. 


According to a recent Deloitte poll, XaaS currently accounts for more than half of all business IT spending at 71% of organizations. XaaS democratizes innovation by giving more people access to cutting-edge technologies.


Also Read | What is Backend as a Service (BaaS)?



Disadvantages of XaaS:


Like advantages, there are a few disadvantages of XaaS, let us learn about them here:


  1. There may be some downtime


When the internet is down, it's possible that your XaaS provider may suffer as well. There may be challenges with internet reliability, resilience, provisioning, and management of infrastructure resources while using XaaS. 


Users will be unable to utilise XaaS servers if they go down. SLAs allow XaaS suppliers to guarantee their services.


  1. There are concerns with performance


Bandwidth, latency, data storage, and retrieval times may deteriorate as XaaS grows more widespread. The system may slow down if too many clients utilize the same resources. 


Apps that operate in virtualized environments may potentially be affected. Integration challenges, such as the continuing maintenance and security of different cloud services, might arise in these complex systems.


  1. Complexity has an influence


Pushing technology to XaaS can relieve IT workers of day-to-day operating issues, but it may be more difficult to fix if anything goes wrong. Internal IT employees must continue to keep up with emerging technology


Although the total cost reductions of XaaS models are generally significantly larger, the costs of maintaining high-performing, durable networks might rise. 


Despite this, some businesses wish to keep an eye on their XaaS provider's environment and infrastructure. Furthermore, a XaaS provider's acquisition, discontinuation of service, or alteration of its roadmap might have a significant influence on XaaS subscribers.




XaaS has a lot of examples since it is practically anything and everything as a service. IT firms have mostly shifted to this to save time and resources. But still, there is no full implementation of this model. For prominent global cloud firms like Microsoft and Google, pushing for XaaS is an ideal benchmark and one of their primary initiatives.

In this article, we have been introduced to the good and bad aspects of XaaS where we learned about the different models of XaaS. 


Although we have not discussed a few other models like Healthcare-as-a-Service and Transportation-as-a-Service, they are widely accepted in the respective industries. We have also learned some benefits and disadvantages of XaaS that can ultimately help you decide your opinion on XaaS. 

Next Read | What is Quantum Computing -as-a-service?

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