SaaS: Software as a Service. Before using the cloud server network. In this article, we look at the three computing models IaaS, SaaS, and PaaS, and their benefits, characteristics, and limitations. SaaS also doesn't require any server maintenance. AWS EC2, Rackspace. As businesses and technology continue to merge, migrating to the. Now that we have discussed all three variants of these cloud computing services, lets’ review their differences. This can cause. While SaaS gives you a complete service for immediate, on-demand use, PaaS gives you the tools to develop the service you need. DaaS. SaaS users subscribe to an application rather than purchasing it once and installing it. Infrastructure As A Service (IaaS) It is the most flexible type of cloud service which lets you rent the hardware and contains the basic building blocks for cloud. Generally I. It allows businesses to access the. On the other hand, PaaS allows you to manage your data and applications only, and with SaaS, everything is managed by your service provider. SaaS, on the other hand, refers to cloud-based software that companies may buy and use. Data Storage: Data is routinely saved in the cloud. The data is made accessible to multiple users via an online service. SaaS solutions are fully managed by the third-party vendor—from the application's updates to the client's data to storage. They are Software as a Service (SaaS),. A good way to think about IaaS is as the foundation for creating a cloud-based service, such as software or an e-commerce website. The company announced the impending arrival of the AI-infused service last week, and as of last night's Insider update, the preview of Copilot has started landing onto Windows 10 22H2 Home and Pro editions. The graphic below provides a high-level overview. IaaS is typically used for computing, storage, and networking, while PaaS is used for application development and deployment. Since the cloud is a popular issue for small businesses, large corporations, and everything in between, we’ll explain the fundamental difference between IaaS vs PaaS vs SaaS to assist you in making the best decision. They each have their own pros and cons, and the difference between them is the level of abstraction they offer the end-user. PaaS generally follows a similar model, with additional costs for extra features or services. Benefits of IaaS cloud model. 1. Depending on your need for flexibility and customization, each model has its pros and cons. Cloud service pricing models are. Though still not as large as the SaaS market, IaaS market growth is outpacing that of SaaS. MailChimp, DocuSign, Slack, Google Apps, GoToMeeting, Dropbox, Cisco WebEx,. The main confusion stems from the fact that many equate “cloud computing” with “online services,” which is, of course, nonsense. Software as a Service (SaaS) is a type of cloud-based software distribution. Software as a Service (SaaS) Software as a Service provides you with a completed product that is run and managed by the service provider. Amazon retained the No. IaaS (Infrastructure as a Service), as the name suggests, provides you the computing infrastructure, physical or (quite often) virtual machines. Users gain access to serverless computing with SaaS, IaaS, and PaaS offerings. Iaas allows IT users to access resources over the internet. Software-as-a-Service: SaaS Examples and Definitions . IaaS offers on-demand access to cloud-hosted virtual and physical servers, storage, and networking. While SaaS gives you a complete service for immediate, on-demand use, PaaS gives you the tools to develop the service you need. Iaas sells products analogous to hardware like VMs. W hen talking about the topic of cloud computing services, you must have heard of these concepts, Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and. Trust boundaries —between the different services and components deployed on the cloud. Easily Upgradable. Customization. They simply work on different levels of the same. IaaS: Best for projects that need a high level of control over resources, and you’re willing to shoulder the complexity and cost that comes with it. PaaS: Platform as a Service. SaaS vendors also manage platforms, operating systems, and middleware. Describe Software as a Service (SaaS). Platform as a service (PaaS) is a proven model for running applications without the hassle of maintaining on-premises hardware and software infrastructure at your company. The private cloud user has the cloud to themselves. The key features of IaaS are as follows: IaaS computing services are beneficial for a number of reasons and some of them are mentioned below: PLATFORM AS A SERVICE. A key benefit of databases offered as SaaS is that they let small teams do more without having to grow the team. 6 billion in 2023, according to the latest forecast from Gartner, Inc. The main three cloud service models are: IaaS, PaaS and SaaS. PaaS vs. The actual application runs in cloud servers that may be far. IaaS — infrastructure as a service. First, SaaS is beneficial when used by a company – e. How do cost structures differ between IaaS, PaaS, and SaaS? Answer: IaaS typically follows a pay-as-you-go model based on actual usage. PaaS (Platform as a Service) providers sell access to everything a customer would need to develop an app. IaaS, PaaS, and SaaS are all different ways of collecting and analyzing data. A few examples of existing SaaS programs include MailChimp and Shopify. PaaS is used by developers; IaaS is suitable for system administrators, while SaaS is used by end-users. SaaS is just one aspect of the myriad locations where modern data and applications can be found. PaaS – (Platform as a Service) Platform as a service is perfect for software developers. Cloud as a Service (CaaS) is the utilization of cloud computing services consumed and paid for on a subscription or pay-per-use basis. A PaaS approach might manage the OS and Apache for you, but leave you to set up your sites in Apache. These three services (SaaS, PaaS, and IaaS) provide the different ways of usage of cloud for an organization. Cloud computing has enabled companies to access a number of services over the internet. Store, maintain, and manage a business’s database. Gartner expects steady velocity within this segment as enterprises take multiple routes to market with SaaS, for example via cloud marketplaces, and continue to break up larger, monolithic applications into composable. PaaS. IaaS has around a 12% increment. SaaS provides a complete software solution that you purchase on a pay-as-you-go basis from a cloud service provider. Amazon Web Services. IaaS vs PaaS vs SaaS. IaaS, PaaS, and FaaS services have similar purposes: they help companies manage applications cheaper and more effectively. PaaS vs. It allows you to build custom applications entirely online. Four commonly used services are: IaaS (Infrastructure as a Service) NaaS (Network as a Service) PaaS (Platform as a Service) SaaS (Software as a Service) For companies struggling to make sense of it all, and wanting to find greater efficiencies in a challenging and competitive market, the question remains: Which service or combination of. Whichever metaphor you use to describe. In this context, “basic” is defined in terms of how much control over your. IaaS stands for ‘Infrastructure as-a-Service’, PaaS stands for ‘Platform as-a-Service’, and SaaS stands for ‘Software as-a-Service’. On-premise (or on-prem) solutions are a rarity nowadays, but think of the olden days of Adobe InDesign on CD-ROM. I will introduce them more specifically in the following context. Let's start by explaining what each of these cloud service models means, how they've changed the modern business. No two services are the same, but they share similar characteristics. Specify security baselines for SaaS, PaaS, and IaaS services min. It is also a method of software delivery in which software and its associated data are centrally hosted and accessed using their client, typically an online browser, over the web. The main differences between SaaS, PaaS, and IaaS come from which layers you choose to manage yourself versus which a service provider operates. PandaDoc is a software as a service (SaaS) company that uses a clear and simple approach to outline the terms of its SLA. You might also hear IaaS, PaaS, and SaaS called cloud service offerings or cloud computing categories, but all of these terms refer to how you use the cloud. 3. 9%, and PaaS with 18. LaaS is a proven approach to managing and monitoring high-volume log data in modern dynamic environments. Types of cloud computing. Customers use the internet to access the hardware and resources. Encryption methods including algorithms like 128-bit. SaaS (Software as a Service) providers sell access to application software and databases. It facilitates the use of software. Last week SaaS was a term I wasn't familiar with. PaaS differs from SaaS in that, rather than providing a single use case to subscribers, it delivers an. IaaS companies provide off-site server, storage, and networking hardware, which you rent and access over the Internet. Software as a Service (SaaS). The main difference between IaaS, PaaS, and SaaS is how much they abstract away from end-users. Insecure interfaces, vulnerable code, poisoned pipeline execution, insufficient pipeline-based access controls, misconfigured system configurations, supply chain attacks and exposure of secrets all bear risks. Gartner reports that SaaS solutions currently have the largest market share, continuing to push out traditional on-premise licensed software. The following are five of the top advantages of using SaaS: 1. vendors provide hosted computers, an operating system, and possibly a DBMS. According to a Gartner report, the IaaS market in the US is projected to reach $126 billion by the end of 2022. Differences Between SaaS, PaaS, and IaaS. Infrastructure as a Service (IaaS) provides access to virtualized compute resources, such as servers. A PaaS is a packaged solution ready to help you develop and deploy your app, while an IaaS is just the bare-bones cloud infrastructure. What you must take into account is that a platform as a. SaaS is popular across industries for its user-friendly software solutions. In summary, this is a term that is more of a label than a category. SaaS remains the largest public cloud services market segment, forecasted to reach $176. 4. This solution offers a ready to go suite for. That’s the difference. The definition of cloud computing is the system of computer resources, infrastructure, computing power, and data storage that are available on-demand without user involvement. IaaS vs PaaS vs SaaS. by Hanna Barabakh. So, it’s not about which one is better, but rather which one suits your needs. HubSpot Best SaaS Provider for Inbound. Therefore, while it’s a serverless, cloud product it differs from our PaaS and FaaS. PaaS a cloud-based service provides businesses with the hardware, and software tools that can be accessed through the web. IaaS (Infrastructure as a Service): IaaS products allow organizations to manage their business resources — such as their network, servers, and data storage — on the cloud. Furthermore, being a SaaS logging service, Loggly doesn’t involve elaborate setup processes; you can configure the. The Different Cloud Service Models. With IaaS, you need to manage and configure it yourself, although the provider is still responsible for servers, storage, networking, and virtualization. The chance of errors is very less in SAAS, and if anything happens, the service providers take care of the same. The increasing popularity of IaaS, PaaS, and SaaS has reduced the need for on-premise hosting. A program or infrastructure is provided as a service. SaaS vendors commonly host applications and data on their own servers and databases, or utilize the servers of a third-party cloud provider. Iaas users have complete control over their infrastructure and can customize it to their specific needs. Image Source: BMC. A SaaS approach to, say, web hosting would give you a fully-installed content management system like Wordpress, you just log in and start writing. Companies may use all three services or a combination to address their needs. IaaS (Infrastructure as a Service): IaaS products allow organizations to manage their business resources — such as their network, servers, and data storage — on the cloud. Source: t4. 2. April 14, 2020. On-demand scalability. The shared responsibility model defines cloud security, but it changes for IaaS, PaaS and SaaS. SaaS Benefits and Examples. In traditional hosting services, IT infrastructure was. As technology develops, new variations of cloud computing services pop up. SaaS vs. Within the world of cloud computing, IaaS, PaaS and SaaS each achieve different goals for their users. Most. For that to happen, you need to manage: datacenters, servers, networks, virtualization, operating systems, runtime, storage, middleware, data, applications, and monitoring. IaaS stands for ‘Infrastructure as-a-Service’, PaaS stands for ‘Platform as-a-Service’, and SaaS stands for ‘Software as-a-Service’. This service enables users to free themselves from. The resources that are available through SaaS are. Iaas is the simplest cloud offering. You as a user could be restricted to specific performance, integrations, and functionalities as. Definition PaaS. Faster development and delivery. Being cloud-ready means that the application can run anywhere on any platform, is highly scalable, and loosely coupled. They simply work on different levels of the same structure. Examples include Microsoft 365 and Salesforce. SLAs can differ for every single type of service provided, but they can be broadly classified into three main types. scalability, cost model, disaster recovery) while maintaining a large degree of control. Reduced time to benefit. However, PaaS customers still get to manage data and applications—in contrast to the SaaS model, where customers don’t have to manage. SaaS customers are end users who typically access the software through a web browser or client program. In this particular model, you’re managing the applications and data, and your provider manages everything else — so less responsibility than IaaS but more responsibility than SaaS. The IaaS provider hosts and manages this infrastructure. Infrastructure as a Service (IaaS) IaaS is a cloud service that provides basic computing infrastructure: servers, storage, and networking resources. PaaS vs. Best examples of SaaS, PaaS, and IaaS. by Hanna Barabakh. Three Common Cloud Service Models. Cloud computing can be delivered in a variety of ways, most notably done through Infrastructure as a Service (IaaS), Platform as a Service (PaaS), or Software as a Service (SaaS) (SaaS). . Software as a Service works through a cloud delivery model. On Premises. Difference between aPaaS and IaaS. PaaS vs. Some use the infrastructure-as-a-service (IaaS) to build their frameworks, and some might use a platform-as-a-service (PaaS) to create an entire application. Freed from maintenance costs and wasted office space, companies can run their. There are 3 main types of cloud computing as-a-service options and each one covers a degree of management for you: infrastructure-as-a-service (IaaS),. It provides you with a complete software solution, such as an email client, a CRM system, or a video. LaaS, PaaS, CaaS, IaaS, FaaS, and SaaS Explained. Multiple users from 10 – 10,000 can have access to the same software. Kinsta. It speeds up the development and deployment process of applications and allows many users to access applications at the same time. Amazon Web Services. IaaS: Infrastructure as a Service. The National Institute of Standards and Technology (NIST) recognizes three standard cloud computing models of as-a-service: Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS), and Software-as-a-Service (SaaS). в SaaS — a client gets a ready-to-use application in the cloud. IaaS, PaaS, and SaaS are all cloud computing services, and each is used for a different purpose. So, users should choose what to invest in based on their needs. IaaS, PaaS, and SaaS are popular types of cloud service models. Learn MoreWhile SaaS lets you use cloud apps and PaaS lets you develop apps, IaaS gives you the infrastructure to develop, run, and manage your applications in cloud environments — providing for virtually limitless storage and computing power without having any physical hardware to own or operate. Develop and manage application programming interfaces (APIs). IaaS Stands for Infrastructure as as Service. The IaaS, PaaS, and SaaS acronyms stand for infrastructure, platform, or software as a service and systems. SaaS is an out-of-the-box solution. --. offers banking-software-as-a-service (via the B-SaaS brand), data management, and consulting solutions. SaaS: software that is available via a third-party over the internet. Infrastructure as a service (IaaS) is a type of cloud computing service that offers essential compute, storage, and networking resources on demand, on a pay-as-you-go basis. In Summary. 7%. The Pizza-as-a-Service metaphor was firstly introduced by Albert Barron in 2014 as a visualization of the differences between Infrastructure-as-a-service (IaaS), Platform-as-a-service (PaaS) and Software-as-a-service (SaaS). Software-as-a-Service, commonly called “SaaS,” is a distinct form of cloud computing in which users access a complete software solution from an internet-connected device. Remote delivery. SaaS is one of three main categories of cloud computing, alongside infrastructure as a Service (IaaS) and Platform as a Service (PaaS). SaaS. The 3 main types of cloud services: IaaS vs PaaS vs SaaS. Standard interfaces and security protocols —such as SSL, IPSEC, SFTP, LDAPS, SSH, SCP, SAML, OAuth, etc. At first sight it looks brilliant — but if you look in depth, it falls apart. Software as a service (SaaS) allows users to connect to and use cloud-based apps over the Internet. Software as a service. IaaS helps build cloud-based technology infrastructure. One of the key differences between IaaS, PaaS, and SaaS is the fact that the client is responsible for managing applications, runtime, middleware, and data, although IaaS providers still manage the hard drives, networking, servers, virtualization, and storage. Now that you know more about FaaS, you might wonder how it relates to other Anything as a Service (XaaS) options like IaaS, SaaS, and PaaS. IaaS delivers infrastructure resources, such as virtual private servers, storage, and networks, to an organization through the cloud. In an IaaS model only the infrastructure is included. g. PaaS (Platform as a Service) providers sell access to everything a customer would need to develop an app. Typical examples are PaaS (Pizza as a Service), LaaS (Love as a Service), or NaaS. SaaS: Software as a Service. Second, the SaaS deployment method is very suitable when you need an application that is accessible via web and mobile. All you need is to choose your provider and. In most circumstances, a SaaS solution will offer a substantially more accessible, flexible and affordable alternative to a PaaS platform. You can utilize a computing service provider's cloud software to reduce your need for physical servers for quicker, more reliable, and easier operating systems and software. IaaS is highly flexible, and it enables clients to retain complete control. However, there is a hitch to using SaaS that lies in utilizing the various SaaS applications at the same time. However, Desktop as a Service (DaaS) solutions, despite their relatively small market share, is predicted to have the highest growth. Software as a service (SaaS / s æ s /) is a software licensing and delivery model in which software is licensed on a subscription basis and is centrally hosted. Published: 20 Dec 2021 There are three major cloud service models: software as a service ( SaaS ), infrastructure as a service ( IaaS) and platform as a service ( PaaS ). PaaS vs. It facilitates the use of software. SaaS is a service model for cloud computing services. Software-as-a-Service (SaaS) Infrastructure-as-a-Service (IaaS) Network-as-a-Service (NaaS) SaaS is defined as any software application delivered and accessed via the cloud in a subscription-based. Key Similarities Between PaaS and SaaS. While SaaS is currently the largest cloud service in terms of spend, IaaS is currently projected to be the fastest. 6 billion in 2023, according to the latest forecast from Gartner, Inc. Examples. The most-commonly available cloud computing. A hybrid cloud is ________________. SaaS companies are typically either a business-to-business (B2B) or business. Unlike SaaS and IaaS, it refers to only networking hardware, software, and services delivered in a “cloud-like” motion, which implies subscription-based or consumption-based billing. No matter if they were designed by some standards committee, the community or a. While SaaS has grown 42 percent between 2020 and 2022, the IaaS market has grown at more than twice that rate at 89 percent. Let’s talk about each service model in detail. WordPress hosting and other services provided by an IaaS (Source:. They may prefer to migrate their in-house apps to IaaS and create user-end applications using PaaS. Examples: There are loads: Google G-Suite, Dropbox, Cisco Webex, Concur, Microsoft O365, Genesys, PayPal. These easily confusable abbreviations stand for: Infrastructure as a Service (IaaS) Platform as a Service (PaaS) Software as a Service (SaaS)Published September 7, 2021 Introduction As technology develops, new variations of cloud computing services pop up. The Elastic Beanstalk implementation uses AWS infrastructure like S3, EC2, and DynamoDB, but combines them into an instantly usable platform for development. It refers to complete software that can be used in return for a recurring subscription fee. ; SaaS: Perfect for businesses or. Finally, SaaS requires the least of your team. Shared infrastructure. Iaas: Infrastructure As A Service. Keberadaan Cloud Computing menjadi salah satu teknologi yang sangat membantu dalam dunia bisnis. Infrastructure-as-a-Service, commonly referred to as simply “IaaS,” is a form of cloud computing that delivers fundamental compute, network, and storage resources to consumers on-demand, over the internet, and on a pay-as-you-go basis. It supports the most obscure ancient formats up to the cutting edge. The technical aspects of the service are fully managed by the provider. SaaS full form is Software as a Service. On-premises software ("on-prem") is installed and runs on computers on the premises of the organisation using the software, rather than at a remote facility. Business Needs and Emerging Technologies Including GenAI Drive Cloud Model Innovation. Rapid Access Computing Environment (RACE) is a United States federal government infrastructure-as-a-service ( IaaS ) initiative for developing and testing new Department of Defense (DoD) software applications. Monetizing SaaS. Software as Service (SaaS) SaaS handles hosting, security, server uptime and other technical processes. Affordability. Iaas users have complete control over their infrastructure and can customize it to their specific needs. Here are some cons you should keep in mind: No control over the infrastructure. §White labeling of SaaS solutions has become increasingly prominent. SaaS solutions are meant for web browsers; they are designed to provide unique advantages over ASP (Application Service Provider) in terms of performance, security, service levels, software visibility, system integration and support. There are three main types of cloud computing services: IaaS: Infrastructure as a Service. SaaS is considered to be part of cloud computing, along with several other as a service business models. No two services are the same, but they share similar characteristics. Of course, SaaS and the cloud harmonize well, but so do many other new and old information technologies and concepts. The different cloud service models include Software as a Service (SaaS), Platform as a Service (PaaS) and Infrastructure as a Service (IaaS). Compromised passwords are the biggest security risk in SaaS. SaaS offers ready-to-use, out-of-the-box solutions that meet a particular business need (such as a website or email). Companies may use all three services or a combination to address their needs. Software as a Service explained. Figures from Statista show that the three platforms have grown significantly over the last decade, with worldwide revenue increasing from around $90 billion in 2016 to more than $312 billion in 2020. [2] Large clouds often have functions distributed over multiple locations, each of which is a data center. No two services are the same, but they share similar characteristics. A constant hybrid cloud, Microsoft Azure is growing in demand with approximately 90% of the Fortune 500 companies using Azure services. Understanding the difference between IaaS, PaaS, SaaS, and CaaS in cloud computing comes down to the level of control and. Once a subscription to a SaaS solution is signed, the provider grants the. . Cloud computing has three main cloud service models: IaaS (infrastructure as a service), PaaS (platform as a service), and SaaS (software as a service). The end product is an application that you want to use. It runs like software, but it can be used as a platform to support your entire logging infrastructure. You rent the use of an app for your. Platform as a Service (PaaS):. It provides the building blocks for applications and facilitates different IT processes. Typically, IaaS provides access only to core infrastructure components: compute, networking and storage. SaaS is a service model for cloud computing services. Software-as-a-Service (SaaS) offerings are becoming the de facto method for users to access services and products like Adobe Creative Suite and Microsoft Office. First, IaaS is an alternative to on-premises infrastructure that encompasses storage, networking, servers, and virtualization services. A SaaS model provides cloud-based tools and applications to consumers and businesses, whereas a PaaS model allows them to host, manage, and secure their own applications and IaaS allows organizations to manage their business resources like network, server, and data storage. In the SaaS model, your provider supplies and hosts all the physical and virtual core infrastructure, middleware, database management systems, development tools, etc. SaaS business applications are usually accessed by users using a thin client via a web browser. The term refers to the software delivery and licensing where end users access the software online. Infrastructure as a Service (IaaS) 2. “Cloud has become essentially indispensable,” said Sid Nag. IaaS is ideal if you want the benefits of the cloud (e. Blockchain as PaaS. The biggest difference between PaaS vs IaaS is that PaaS is more focused on user scalability and flexibility. Moreover, it has to be automated for deployment. 3 billion in 2021 to $947. SaaS, or software-as-a-service, is application software hosted on the cloud and used over an internet connection via a web browser, mobile app or thin client. SaaS is the highest level of abstraction in cloud service models. The service provider can be internal (such as the legal department or IT Helpdesk) or external (such as a hosting provider, a SaaS supplier or a backup service provider). So, here are a few examples of these services: Popular SaaS products. SaaS vendors commonly host applications and data on their own servers and databases, or utilize the servers of a third-party cloud provider. From there, users install and manage the software they want to run on top of that cloud-based infrastructure. LaaS Solution The B-SaaS (Banking as a Service) platform includes a lending module as well as banking, LaaSSaaS applications are also known as: Web-based software. Unlike the IaaS model, PaaS providers manage runtime, middleware, and operating systems. SaaS offers an off-the-shelf application, often to end-users. a) Everything from the application down to the infrastructure is the vendor’s responsibility. Companies often choose SaaS when they lack sophisticated internal IT capabilities and are looking to have a simple, straightforward tool designed for a specific purpose. 9 percent, and PaaS, which is growing at a rate of 18. 8 billion in 2024, up from $563. Each has its own distinct use and purpose, and understanding them. Users can log into and use a SaaS application from any compatible device over the Internet. Kinsta has been a managed WordPress hosting provider well known for its high-performance hosting platform and top-notch customer support. Along with platform as a service and software as a service (SaaS), IaaS is one of the three basic types of cloud computing services (PaaS). Choose SaaS vendors wisely based on several. 6 min read · Aug 31, 2021 -- As technology develops, new variations of cloud computing services pop up. SaaS usually has a subscription model, often monthly. The Shared Responsibility Model for Security in The Cloud (IaaS, PaaS & SaaS) By Muhammad Raza April 07, 2023. Organizations planning to move. g. Any business owner — or just an ordinary person — can use software (Software as a Service), a platform for developing (Platform as a Service) or a whole infrastructure (Infrastructure as a Service in the cloud. DaaS. Store, maintain, and manage a business’s database. There are the following characteristics of SaaS - Managed from a central. IaaS is the most basic type of cloud service model, followed by PaaS, and finally, SaaS. Jul 19, 2020. Even though PandaDoc’s template uses legal language, it remains a strong SLA because the. This could include storage, networking or application development tools. Many cloud computing services offer varying features and degrees of operational management depending on the service you consume. Key Takeaways. With SaaS, vendors manage the data, servers and storage, ultimately eliminating the need for IT review and streamlining business processes. It functions to provide various visualized computing resources all over the internet. SAAS Cloud Computing Abbreviated as Software as a Service, it is a software that is deployed as a hosting service and is accessed over the Internet. While PaaS and IaaS offer a certain level of control over the cloud-based infrastructure they run on, SaaS does not. key characteristics of the SaaS model across the board. Software As A Service (SaaS) refers to a bundle of software products. This model provides businesses with greater flexibility. IaaS, PaaS and Saas explained. Cloud computing has also proven to be one of the most important environmentally sustainable technological innovations in. We'll touch on PaaS briefly, but for the purposes of this piece, we're going to focus on IaaS and SaaS because they're the two most prominent models. It refers to complete software that can be used in return for a recurring subscription fee. Cloud computing provides different cloud models for deployment to its users as it works as a service provider.