1-888-310-4540 (main) / 1-888-707-6150 (support) info@spkaa.com
Select Page

IaaS vs PaaS vs SaaS: Cloud 101

Written by Mike Solinap
Published on August 4, 2023

Starting your cloud computing and cloud journey? Wondering how cloud services can help your business thrive? There’s a lot to wrap your head around isn’t there. But, don’t worry, we’ve got you covered with this blog. In fact, we’re going to provide you Cloud 101 and cover the basics of cloud services and compare IaaS vs PaaS vs SaaS. Also known as Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).

Cloud 101: IaaS vs PaaS vs SaaS

Why Are Cloud Services And Cloud Computing Important?

Firstly, whether you’re in manufacturing, healthcare, finance, or any other sector, the right cloud service model can empower your organization.

IaaS vs PaaS vs SaaS are all types of cloud services you should familiarize yourself with. Because, by understanding the benefits and applications of these models, you can make an informed decision that aligns with your business goals. 

What’s The Difference Between Cloud Services And Cloud Computing?

We’ll cover IaaS vs PaaS vs SaaS in detail shortly. But first let’s cover the basics of Cloud. The terms “cloud services” and “cloud computing” are related. However, they have distinct meanings:

Cloud Computing

Firstly, cloud computing refers to the delivery of computing resources over the internet on a pay-as-you-go basis. It involves the provision of virtualized computing resources such as servers, storage, networking, and software applications. A good example of this is our own vCAD solution – learn more about that here. 

Essentially, cloud computing allows users to access and utilize them remotely. Furthermore, cloud computing eliminates the need for on-premises infrastructure and provides scalability, flexibility, and cost-efficiency. It encompasses various service models, including IaaS, PaaS and SaaS.

IaaS vs PaaS vs SaaS
 cloud computing
 IaaS vs PaaS vs SaaS
cloud computing

Cloud Services

Conversely, cloud services are specific services or applications provided via the cloud computing model. Essentially, these services leverage the underlying cloud infrastructure and are accessible over the internet. Cloud services can encompass a wide range of offerings, including:

  • Storage.
  • Databases.
  • Analytics.
  • Development platforms.
  • Collaboration tools, and more.

Examples of cloud services include Amazon Web Services (AWS), Microsoft Azure, Google Cloud Platform, and various Software as a Service (SaaS) applications.

Cloud Computing vs Cloud Services

Basically, cloud computing is the overarching concept that encompasses the delivery of computing resources over the internet. Comparatively, cloud services are the specific applications or services provided through the cloud computing model. Essentially, Cloud services rely on the infrastructure and capabilities of cloud computing to deliver their functionalities to end-users.

What Does “As-A-Service” Mean And How Does It Relate To IaaS vs PaaS vs SaaS?

IaaS, PaaS, and SaaS fall under the “as-a-service” umbrella. This refers to cloud computing services provided by third-party providers. Basically, it allows you to prioritize your core activities, such as coding and customer relationships, while reducing the need to manage on-premises infrastructure. Also, when it comes to on-premises IT infrastructure, you bear the highest level of responsibility as a user and manager. That means, it entails managing, updating, and replacing hardware and software components internally. However, cloud computing offers the opportunity to offload some or all of these responsibilities to a third-party provider. Ultimately, you free up your time and resources.

High-level Comparison IaaS vs PaaS vs SaaS

Offers a development platform and tools, simplifying app development, reducing time-to-market, and eliminating infrastructure management complexities.
Delivers fully developed applications on a subscription basis, eliminating installation and maintenance, providing easy accessibility and rapid deployment.
Offloads infrastructure management to a cloud provider, ensuring scalability, cost-efficiency, and focus on core business while the provider handles hardware maintenance.

Now, let’s look at IaaS vs PaaS vs SaaS in more detail.

Understanding Cloud Service Models: IaaS vs PaaS vs SaaS

What is Infrastructure as a Service (IaaS)?

With Infrastructure as a Service (IaaS), you delegate the management of infrastructure components like servers, storage, and networking to a cloud provider. So, this relieves you from the burdensome task of infrastructure maintenance, while offering key advantages such as:

  • Scalability.
  • Cost-efficiency.
  • The ability to prioritize core business objectives. 

In the IaaS model, you outsource the responsibility of maintaining hardware to the cloud provider, while retaining control over operating systems, applications, and data. Basically, this grants you more flexibility and customization options compared to other cloud service models. And, by reducing on-premises infrastructure responsibilities, IaaS enables you to dedicate your resources and attention to core functions, fostering growth and innovation.

IaaS Examples

  • Virtual Machines (VMs): You can provision VMs with specific operating systems, memory, storage, and processing power, all managed by the cloud provider.
  • Storage: You can store and retrieve data in the cloud, eliminating the need for on-premises storage infrastructure. Cloud storage options include object storage, block storage, and file storage.
  • Networking: IaaS provides networking capabilities to connect and manage resources in the cloud. For example, virtual networks, subnets, load balancers, firewalls, and VPN gateways. These enable businesses to build and manage their network infrastructure without the need for physical hardware.
  • Database Management Systems: Leverage solid and scalable databases without the need for dedicated hardware or database administrators. Cloud providers offer various database options, such as relational databases (e.g., MySQL, PostgreSQL), NoSQL databases (e.g., MongoDB, Cassandra), and data warehousing solutions.
  • Content Delivery Networks (CDNs): IaaS providers often include CDNs as part of their offerings. CDNs enable businesses to distribute content, such as images, videos, and web pages, to global audiences with low latency and high performance by caching the content at edge locations worldwide.
  • Disaster Recovery and Backup: You can replicate your data and infrastructure to a secondary location, ensuring business continuity in the event of a disaster.

What is Platform as a Service (PaaS)?

Platform as a Service (PaaS) simplifies application development by providing a comprehensive platform with tools, libraries, and infrastructure components. Additionally, it eliminates the complexities of managing underlying infrastructure, allowing you to focus on writing code and building applications. Furthermore, PaaS reduces development time, simplifies deployment, and enables automatic scalability. And, it does this because the cloud provider handles hardware, operating systems. Additionally, they offer a preconfigured environment for development, deployment, and management. With PaaS, you gain a streamlined development process, faster time-to-market, and reducing the overhead costs associated with maintaining development platforms.

PaaS Examples

  • Application Development Frameworks: PaaS providers offer development frameworks that simplify application development. Examples include Ruby on Rails, Django, and Node.js. These frameworks provide pre-built components and libraries, reducing development time and effort.
  • Database Management Systems: PaaS includes managed database services that eliminate the need for businesses to set up and maintain their own database infrastructure. Cloud providers like AWS and Azure offer various database options. For example, MySQL, PostgreSQL, Oracle, and Microsoft SQL Server.
  • Middleware: You can facilitate the integration and communication between different software components. These services include message queues, caching systems, identity management, and API gateways.
  • DevOps Tools: PaaS provides tools for continuous integration, continuous delivery, and deployment automation. These tools streamline the software development lifecycle, enabling you to automate testing, deployment, and monitoring processes.
  • Analytics and Business Intelligence: With PaaS, you can process and analyze large volumes of data. For example, data warehousing, data lakes, and tools for data visualization and reporting.
  • Mobile Backend as a Service (MBaaS): MBaaS handles tasks such as user authentication, data synchronization, push notifications, and cloud storage, allowing developers to focus on building the front-end of their mobile apps.
  • Internet of Things (IoT) Platforms: PaaS includes IoT platforms that provide the infrastructure and tools to develop, deploy, and manage IoT applications. These platforms enable you to connect, monitor, and analyze data from IoT devices.

What is Software as a Service (SaaS)?

Software as a Service (SaaS) delivers fully developed applications over the internet through a subscription model. With SaaS, you can access ready-to-use software without the need for installation or maintenance. Basically, the cloud provider manages the infrastructure, platform, and software, while you simply access the application through a web browser or dedicated client. SaaS offers easy accessibility, reduced IT overhead, and rapid deployment. Additionally, it eliminates the complexities of software installation, maintenance, and upgrades, providing convenience and flexibility. Furthermore, you don’t need extensive IT expertise or infrastructure management to utilize SaaS products – they’re designed to be user friendly!

SaaS Examples

  • Customer Relationship Management (CRM): Salesforce, HubSpot, and Zoho CRM are popular SaaS CRM platforms that provide you with tools for managing customer interactions, sales pipelines, and marketing campaigns.
  • Productivity and Collaboration: Google Workspace (formerly G Suite), Microsoft Office 365, and Slack enable teams to collaborate on documents, spreadsheets, presentations, and communication in real-time.
  • Human Resources Management: For example, Workday, BambooHR, and ADP, SaaS HR offering features such as employee onboarding, time tracking, payroll management, and performance reviews.
  • Enterprise Resource Planning (ERP): NetSuite, SAP Business ByDesign, and Oracle ERP Cloud are SaaS ERP systems that integrate and streamline business processes. This spans from finance to supply chain management, inventory control, and reporting.
  • Project Management: You’ve likely heard of Asana, Trello, and Monday.com. These are SaaS project management tools that help teams plan, track, and collaborate on projects, assign tasks, and monitor progress. And, yes – they are SaaS!
  • Communication and Collaboration: Zoom, Microsoft Teams, and Cisco Webex are SaaS communication and collaboration platforms that provide video conferencing, instant messaging, and virtual meeting capabilities.
  • E-commerce: Shopify, BigCommerce, and WooCommerce are SaaS e-commerce platforms that allow businesses to create and manage online stores, handle inventory, process payments, and track sales.
  • Marketing Automation: Mailchimp, HubSpot Marketing Hub, and Marketo are SaaS marketing automation platforms that automate email marketing, lead nurturing, social media management, and analytics.
  • Customer Support: Zendesk, Freshdesk, and Intercom are SaaS customer support platforms that enable businesses to manage and track customer inquiries, provide self-service options, and improve customer satisfaction.
  • Data Analytics: Tableau, Google Analytics, and Looker are SaaS analytics platforms that help businesses analyze and visualize data to gain insights and make informed decisions.

The Key Benefits Of Cloud Services, Cloud Computing And IaaS vs PaaS vs SaaS

Speed and Agility
Rapid scaling of resources to meet fluctuating demands, allowing for quick deployment of applications and services. On the other hand.
Empowers developers with pre-configured environments, accelerating application development and time-to-market.
Provides instant access to applications, enabling businesses to quickly adopt and implement solutions.
Safety and Security
Providers offer robust data encryption, access controls, and compliance measures to protect sensitive information.
Providers implement security features at the platform level, ensuring secure application development and deployment.
Providers adhere to strict security protocols, safeguarding customer data and privacy.
Cost efficiency
Pay-as-you-go model allows for cost scalability, ensuring that you only pay for the resources you use.
Eliminates the need for on-premises infrastructure, reducing capital expenditure and maintenance costs.
Subscription-based pricing eliminates upfront software licensing fees and reduces ongoing maintenance expenses
Customization and flexibility
Offers flexibility by allowing the integration of existing systems and the development of specialized applications.
Provides a range of tools and frameworks, empowering businesses to tailor solutions to their unique requirements.
Providers often offer industry-specific solutions that can be customized to meet specific needs.


There are key differences when it comes to IaaS vs PaaS vs SaaS. Choosing the right cloud service model for your businesses, regardless of industry can help you accelerate growth and time-to-market. Additionally, it can drive cost savings and improve your ROI.

If you need support navigating cloud services and cloud computing, or if you’re ready to kick-start your cloud journey, contact our team. We’re experts in cloud services and proud partners of AWS, Microsoft Azure and Atlassian.

Latest White Papers

PLM and ERP: Their respective roles in modern manufacturing

PLM and ERP: Their respective roles in modern manufacturing

Integrating engineering with manufacturing doesn't have to be difficult. This downloadable white paper from PTC and SPK discusses how to successfully integrate Enterprise Resource Planning (ERP) and Product Lifecycle Management (PLM) to benefit your business. You will...

Related Resources

Resiliency with Microsoft Azure

Resiliency with Microsoft Azure

When researching cloud computing services, there are many key components to analyze. A main factor many organizations look at is the resiliency of a service. Resilience is about how well a system can recover from a disruption or system failure. It can range from...

A Foundation for PLM Best Practices eBook

A Foundation for PLM Best Practices eBook

Ready to supercharge your organization's success in the competitive manufacturing landscape? Our free eBook is the ultimate guide to building a solid foundation for Product Lifecycle Management (PLM) best practices.  PLM Best Practices eBook Effectively implementing...

11 Tips To Help You Choose An ALM Solution

11 Tips To Help You Choose An ALM Solution

Selecting the right Application Lifecycle Management (ALM) solution is a critical step in ensuring the efficiency and success of your software development processes. In this guide, we'll break down the key factors to consider when you choose an ALM, focusing on good...