.NET Developers Azure basics: IaaS vs PaaS vs SaaS on Azure

Everything You Wanted to Know About Azure basics: IaaS vs PaaS vs SaaS on Azure.

For many businesses, cloud computing is essential, and its significance has only grown in recent years. Cloud computing can offer more flexibility, dependability, and efficiency than on-premises IT infrastructures. Microsoft Azure is among the most popular cloud-based services widely available, in part due to Azure’s compatibility with many standard operating systems and apps. This makes Azure an exceptionally valuable cloud computing platform.

You must be familiar with the terms Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS) when discussing cloud computing services. These are the top three service categories that cloud providers offer. Due to their frequent appearances when cloud computing solutions are addressed, it is crucial to grasp what they are and how they vary.

These models are structured to provide a product with a specific delivery mechanism in mind. Software is the driving force behind these models, and software development can get complex. We’ve broken it down and wrote an article that can be found here.

Learn about Software as a Service on Azure, Microsoft’s cloud-based app development Azure product, from the experts at Sonatafy.

Cloud As a Service: The basics

The hardware and software components needed to enable cloud computing are collectively called cloud computing infrastructure. It may also have a user-accessible interface, networking capabilities, storage, and computational power. Servers, network switches, memory clusters, and storage clusters are a few examples of these.

Options for cloud computing aaS

Before getting into the details we must first discuss what “as a Service” means. According to Crayon (1) as a Service can be described as:

Simply put, it designates a facility, usually related to IT, computing, or telecommunications, that’s available to its users as a service, rather than something they install and operate themselves through their own hardware. These services are accessed through the internet.

– Crayon

Customers can utilize a SS version of a Microsoft software hosted on the company’s internal servers rather than downloading it and using it on only one device. Customers pay a monthly fee to use the program rather than purchasing it together, changing the nature of the app from one they buy to one they pay to use.

There are three commonly popular As a Service model. They include;

  • SaaS (Software as a Service)
  • IaaS (Infrastructure as a Service)
  • PaaS (Platform as a Service)

As Service models have several advantages. Here are a few examples:

Lower cost

The program may be purchased without needing a sizable upfront sum of money. Alternatively, you can spend less over a year or monthly. This makes the program more available and allows you to easily cancel your subscription if you feel you no longer want it, saving you from being stuck with an expensive product you don’t use.

More flexible

The only location you may utilize software downloaded on your personal computer is on that machine. With a SaaS model, you may access the program by logging in to a website using any device, including your laptop, phone, tablet, public computer, workplace computer, mom’s computer, etc.

Always up to date

You won’t need to physically install and download updates because your “as a service” product is based on the vendor’s servers, so you’ll always be shown the most recent version.

Better features

Adopting SaaS ensures you have access to the most significant and most recent features since, generally speaking, software providers are placing greater emphasis on cloud versions of their goods. Additionally, SaaS solutions are more potent and capable of far more than a regular version because they are driven by the cloud, which does as much as your computer can process.

Less demanding on infrastructure

You don’t have to miss out if your computer isn’t capable of running specific software or isn’t sufficiently modern. SaaS software doesn’t require running on your computer, so as long as you have an internet connection, you may save time and money by not having to purchase or maintain hardware.

Using it for your business

Azure is a powerful tool that can be leveraged to improve many aspects of your business; building products for internal reports or programming services that can be sold to the public. This flexible platform Microsoft created has been used to advance many projects and companies. In fact it’s so flexible it can get overwhelming, while we go over the basics of Azure in this article, consider clicking the following link ( to learn more about how you should approach obtaining software development services!

.Net Developers Frequently Asked Questions About Azure basics: IaaS vs PaaS vs SaaS on Azure.

What is IaaS?

IaaS is a type of cloud computing that allows for the provisioning, controlling, and managing of computer resources through the internet. It makes premium data center technologies and capabilities (such as Windows and Linux) available without requiring a substantial infrastructure investment. IaaS consumers can utilize an easy dashboard or API to access this infrastructure. All management duties, however, are the responsibility of the cloud service supplier.

What is PaaS?

In PaaS cloud platforms, a computer resource is used virtually rather than physically. The entire lifetime of a web application, including development, testing, deployment, management, and upgrading, is supported by PaaS. It is alluring because it enables you to avoid the costs and hassle of purchasing and managing software licenses. Additionally, it provides pre-built development environments for building highly customized apps. You don’t have to worry about changes in OS, program, or storage space.

What is SaaS?

SaaS is a cloud service that provides cloud-based software and applications hosted online and utilized as such. Typically, a subscription is required to utilize them. All SaaS cloud platform apps (such as Google Docs) may be accessed from any gadget, any part of the world, using a browser or software. SaaS eliminates the need to download any software because everything is accessible online.

Is Azure SaaS, IaaS or PaaS?

Depending on which of Azure’s numerous services, you can reap the benefits of IaaS, PaaS, and SaaS on Microsoft’s cloud platform since Azure supports all three of the fundamental service models we’ve examined.This includes cloud Azure Database, Azure Cognitive Services, Azure Kubernetes Service, storage Azure data, and Azure virtual desktop, to name a few.

Now that we know what each service model is and what it does, it is time to learn how Azure can help you use them in your company.

The lists of points that follow highlight the main distinctions between Azure PaaS and IaaS:

The PaaS offers a platform on which you may create and deploy your web apps or any other type of application without worrying about the administration of infrastructures and runtime environments.

Iaas is very helpful for the simple installation of infrastructure for novel technologies; in the absence of IASS, a company must buy infrastructure, hardware, memory, and space, then have to customize all things; it may require a long time to do the setup. With Iaas, these things can easily be purchased as a service, and a company need only concentrate on its development, testing, and innovative ideas.

Platform as a Service also offers fundamental infrastructures, so you don’t have to worry about the hardware and memory expenses while configuring your runtime database and operating system.

Because of its distant location, the developer in Iass Support, accessible worldwide, may be reached online and do development. This platform’s remote location allows several developers to collaborate on it.

The runtime, data, and operating system are all included in the PaaS, so you only need to worry about the creation and deployment of your applications.

Iass lacks functionality like runtimes, operating systems, and databases that you must put up on specific infrastructures. 

PaaS gives a built-in platform where you don’t need to worry about establishing runtime, setting up the computer system, or creating a database, increasing the development pace without adding new people to the organization. It would be best if you concentrated on the development job. Doing so can accelerate the development process without needing to hire more employees. Several service providers in the market presently offer services for various platforms, including mobile, corporate, and online applications.

In IaaS, the service provider firm will handle all infrastructure-related concerns, such as RAM upgrades, maintenance, and networking problems. Still, if a company decides to purchase infrastructure, this infrastructure company will be required to handle every aspect on its own. Only service costs must be paid at the IASS firm.

PaaS provides the necessary features and runtime for custom application projects and business applications, significantly facilitating the application lifetime management. It enables project updates and maintains an application’s whole lifetime, starting with development and ending with deployment.

When a service provider firm offers superior IaaS security, the company purchasing IaaS need not be concerned about the application. On the Iaas platform, they were deployed.

When using Azure for your business it’s also important to figure out what project needs you have, and hiring the right position for it. Does your project need a developer to build code for a specific program? Or an engineer who can build software from the ground up? The choice can be tough, so we put together an article that aswers the question: Is application development the same as software development?

What is a SaaS in Azure?

Services like Dynamics 365, Outlook, and Office 365 are just a few of the leading SaaS services on Azure. Along with hosting apps you’ve written yourself, Azure may be used to access other Azure SaaS services. One significant advantage of choosing Azure as the base for your SaaS apps is that it enables you to utilize robust technology and innovative capabilities like machine learning and statistics.

The comprehensive suite of capabilities Azure SaaS provides enables businesses to create, launch, and maintain their apps end to end on the system. Your databases and apps are hosted in Microsoft’s data centers while using Azure SaaS. Your company uses the Azure portal to manage apps and various additional tools, including storage, operating systems, servers, firewalls, and other security measures available on the Azure platform. The platform uses user-provided options to determine when to scale your app up or down based on traffic volume.

Both Azure PaaS and Azure IaaS are included in Azure SaaS.

IaaS on Azure

The Azure IaaS architecture includes all the actual data centers necessary to support both your virtual servers and your application, as suggested by the word “infrastructure.” Your servers’ infrastructure is taken away to integrate them with the Azure back end.

You may use cloud orchestration software to handle crucial company activities and operations by utilizing Azure IaaS services. By doing this, you may avoid the headache of having to take everything by yourself. By using Microsoft Azure IaaS, you can focus on the things that require your attention while also saving time and energy and lowering human error.

When constructing an Azure IaaS architecture, Microsoft can handle your network and compute requirements. However, you still need to buy, install, configure, run, and maintain each component of your IT system.

Operating systems, databases, tools for software development, and other components or applications fall under this category. While using Azure IaaS services, you are responsible for maintaining these machines yourself; hence Microsoft Azure IaaS requires highly skilled engineers to manage established platforms.

Azure IaaS provides a broad range of services depending on your company’s needs. With the help of the Azure IaaS tools, you can do critical tasks, including creating web apps, hosting websites, creating and trying out new environments, and operating high-performance computing in a virtual data center. Microsoft Azure IaaS, designed to use security measures that keep this data safe, also allows you to store and back up data. The Azure IaaS infrastructure is also scalable, allowing you to add and remove IT components without additional expenditures for physical scaling.

PaaS on Azure

Platform as a Service, or Azure PaaS, is a cloud-hosted system that allows developers to create, distribute, and maintain unique corporate applications. Internalizing programming code, security protocols, or service space is unnecessary while using Azure PaaS cloud services. As a result, developing products and services with Azure PaaS services are quicker, easier, and less expensive.

Today, Azure PaaS cloud solutions are more popular than ever before. This is primarily due to the ease with which remote workers may use Azure PaaS services in the cloud. Because pleasant customer experiences are crucial in today’s environment, remote monitoring of Microsoft Azure PaaS services may enhance end-user experience by expediting key functionality. This raises the appeal of Azure PaaS cloud services.

The purpose of the Azure PaaS services is to provide dependable application platforms with continuous access. The Microsoft Azure PaaS cloud computing services can provide you with almost everything needed for modern businesses, from the most specific web services to the most complex enterprise-level software, thanks to features like quick data transfer and numerous opportunities for collaborations with popular operating systems. Azure PaaS only provides a pay-as-you-go licensing by the hour or month, in contrast to Azure IaaS pricing.

IaaS, PaaS, and SaaS are all of the different platform models you see today with various companies. Knowing the differences between them can better serve your goals on what you’re trying to create. In fact, we wrote a whole in-depth article that compares IaaS vs PaaS vs SaaS which can be found by clicking the hyperlink.

Why Azure for SaaS Data Application Hosting?

Although AWS is often regarded as the industry leader in the cloud, Azure quickly overtakes everyone’s preference, especially among users who already like Microsoft goods. Here are some reasons why more businesses are choosing Azure.

Compatibility With the .NET Framework

Windows apps may be made by programmers using Microsoft’s .NET framework (2). The framework’s interoperability with Azure provides it the edge over AWS.

It is handy for businesses to adopt Azure since it is simple to transfer Windows programs created in the.NET programming framework to their cloud service. This is a complex procedure, unlike sharing similar programs utilizing other providers of cloud services like AWS.

Hybrid Cloud Solutions

All open, corporate, and on-premises infrastructural services are offered in a hybrid environment by Azure. Azure has an advantage in the cloud industry over AWS since AWS has not yet incorporated hybrid cloud options into its offerings.

Even better, the cloud’s infrastructure and development tools make it simple to create Azure’s hybrid apps. This enables more mixed connections for improved Azure performance.

Integrated Environments within SaaS Applications

Azure enables interaction with different platforms that a client may select to establish a dynamic environment for the creation and deployment of cloud services. With the help of this connection, application development processes on Azure may be fueled by pre-made solutions like APIs, templates, mobile, web, and other media.

Familiarity with SaaS Applications

As opposed to AWS, the Azure cloud is simple to understand since it uses widely-used concepts and technological frameworks. These consist of Active Directory, Windows, Linux, and virtual computers. This implies that to start using Azure; you don’t require hundreds of troubleshooting techniques or how-to books.

Additionally, Azure offers a variety of technologies like Hadoop and Eclipse to streamline operations. The best aspect is that Azure permits third-party partner apps so that you can purchase them through the Azure marketplace.

Azure Data Migration Strategies for SaaS Apps

Microsoft offers the following four other methods for transferring an app to the Azure cloud (3);

Rehost/Lift and Shift

Application migration to the cloud from an on-premises environment without modifying the underlying application. More details regarding lift and shift’s comparison to other techniques are available on our blog, along with several tools that may be helpful for rehosting.

Ideal for: Legacy migrations and teams with little experience with Azure or the cloud.

Advantages: A lower danger of the application breaking, quick and simple migration.

Disadvantages: It could be harder to expand and extend applications, and they might utilize cloud resources less effectively.


Moving an app to Azure while making minor changes to the application’s code. This enables you to use services like Azure Container Service and Managed Instances of the Azure SQL Database. To re-architect, restructure, and rebuild existing apps in Azure, you may also use the App Service, Azure Functions, and Logic Apps.

Appropriate for: Sensitive and mission-critical applications where the disruption of continuing operations raises questions, yet infrastructure modernization or improvement is required.

Pros: Quick and comparatively simple, yet allows you to upgrade your infrastructure, such as by introducing DevOps automation tools or switching to container-based deployment.

Cons: The program cannot be broken into microservices, allowing for significant cloud efficiency. This prevents considerable design modifications.


This method entails rewriting the application’s code and transferring it to a cloud-native infrastructure.

Applications that require the most flexibility, scalability, and agility in the cloud are suitable.

Benefits: Enables you to build an application that can fully utilize the capabilities of the Azure cloud and is highly scalable, durable, and deployable.

Cons: Expensive, complex migration with a significant potential for errors and service interruption during early implementation phases.


The rebuild technique entails removing the outdated application and starting with the same functionality utilizing the Azure Platform as a Service (PaaS) features. Build the application layer using services like Azure Processes and Logic Apps, and the data layer using Azure SQL Database or other managed Azure data services.

Applications with little complexity and little reliance on other business operations are suitable.

Benefits: Cheap; eliminates the hassle of software licenses. No reliance on current infrastructure or middleware

Cons: You usually won’t receive as much functionality as you would with a bespoke app. Determine which app components may be rebuilt successfully in the Azure context and which ones cannot.


With unprecedented times like the pandemic, many companies and businesses have opted for cloud services and architecture. With your newly acquired knowledge, you can now maximize efficient systems like Microsoft Azure and ensure your business continues to run smoothly regardless of location. If you want to learn more about Azure, Sonatafy is the best place to start.


  1. “Simply put, it designates a facility, usually related to IT, computing, or telecommunications, that’s available to its users as a service, rather than something they install and operate themselves through their own hardware. These services are accessed through the internet.” – Crayon Quote–whats-the-difference/
  2. .NET Framework
  3. Migrating SaaS Applications to Azure