When I say the complete platform to use, it means the provider takes care of all the underlying parts of the infrastructure. However, PaaS customers still get to manage data and applications—in contrast to the SaaS model, where customers don’t have to manage. IaaS. Conclusion. Pengertian IaaS. IaaS. It offers a standardized way of obtaining on-demand computing capabilities over the web. IaaS : 서비스로인프라 (Infrastructure-as-a-service) IaaS 는 가장 쉽게 정의할 수 있습니다. The highest percentage of IaaS services in this category is found with Azure. Google Cloud App Engine comparison looks at key features and typical use cases. IaaS favors the latter while SaaS excels for the former. PaaS offers developers more flexibility, while BaaS offers more functionality. 3. Concepts of IaaS, PaaS and SaaS. Serverless allows its clients to designate the system sources & to run the server dynamically. FaaS is a way to implement serverless computing where developers write business logic that is then executed in Linux containers fully managed by a platform. PaaS vs. IaaS builds the infrastructure of cloud-based technology. 2 · Saves time and cost. The chart below details the strengths and weaknesses of IaaS vs PaaS vs SaaS, as well as offering guidance for situations where one cloud delivery model might be better than the others. The rise of serverless computing has also had a negative effect on PaaS. In traditional bare metal, IaaS and even PaaS implementations, the resources to host the APIs are paid for continuously. There are three common types of cloud computing services: IaaS (Infrastructure-as-a-Service), PaaS (Platform-as-a-Service), and SaaS (Software-as-a-Service). Like Azure PaaS, Azure IaaS is built on top of Azure SaaS. We already know a lot about three main models (SaaS, Paas, and IaaS), but there are some more, least known, but nevertheless being used for different purposes. SaaS vs. PaaS is also a tried and tested concept, so there are a lot of resources and best. 0 while give you more idea on it. Analyze and mine data for business analytics. This cost-effective cloud computing model enables businesses to utilize a development, testing, and deployment environment all through the internet. See Full Table. These three groups comprise the proverbial cloud computing stack. PaaS vs FaaS Serverless computing is like tap water. PAAS gives access to run time environment to deployment and development tools for application. Blending models allow you to balance control, flexibility, skills, and speed to market. The rest of this article deals with the similarities and the differences between these three models of cloud computing – FaaS, PaaS and SaaS. FaaS, frequently referred to as serverless computing, offers a remarkable way to deal with application development. IaaS vs PaaS vs CaaS vs FaaS. With FaaS, the service provider automatically manages the physical hardware, virtual machines, and other infrastructure, while the user. PaaS vs. Platform as a service (PaaS) is a category of cloud computing that provides a platform for developing and deploying applications. PaaS vs. PaaS vs. These cloud services are hosted in gigantic datacenters. There are many Platform as a Service vendors that companies can use to create customized apps. SAAS is used by the end user. The serverless computing approach is a stark departure from the traditional model. A few of the examples of IaaS are AWS EC2, Azure virtual machines, and so on. PaaS can be used for serverless computing and provide support for serverless architectures, such as Function as a Service (FaaS). Uses. Many CSPs offer a spectrum of cloud computing “as a Service” choices, from mere access to server hardware up to and including full-scale, comprehensive options like FaaS. SaaS vs. IaaS is the traditional representation of cloud computing services. However, ACS is retired now (ref: doc ). Serverless: Resolving the Dilemma. PaaS. PaaS vs. IaaS vs. PaaS vs. Some applications may need modernization and changes. FaaS is commonly measured against platform as a service and infrastructure as a service . In this post, we’ll discuss the main differences, advantages, and use cases regarding IaaS vs. The analyst firm projects 2021 global PaaS spending to jump nearly 30% over the previous year. 6. Though usually a cloud computing platform using cloud computing services, the model is expanding to include on-premise and hybrid deployments as well. However, IaaS “requires a mature operations model and rigorous security stacks including understanding cloud provider technologies,” noted Vasudevan. They seem to give serverless. However, this on-request execution of code is profoundly adaptable, making it a. With IaaS, businesses can rent IT infrastructure—servers, virtual. PaaS vs. 4% cloud computing market share in 2021, followed by the fastest-growing cloud service IaaS with 20. Azure Functions, compared to AWS Lambda and Google Cloud Functions, is more flexible and complex about how users deploy serverless functions as part of a larger workload. PaaS is the next evolved step of IaaS (Infrastructure as a Service). The user stops paying when the code finishes executing. Cloud computing services are mainly categorized into three types: infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (SaaS). For some organizations, serverless has become the preferred way to deal with IaaS complexities. Containers and serverless computing are two new cloud models challenging traditional IaaS models. Elastic Beanstalk isn't so simple. The best example of PaaS is low-code technology. Roles being divided could result in. 開發工程師負責實現商業邏輯，也就是撰寫程式碼，維運. IaaS . It functions to provide various visualized computing resources all over the internet. serverless. PaaS vs. Uses. Serverless Computing. AWS Lambda pricing is a little trickier: it includes a free tier, but also charges money based on the amount of concurrency, the number of requests, and the duration. Desktop as a Service (DaaS). serverless computing? Serverless solutions are similar to PaaS offerings, allowing developers to create applications that scale automatically without requiring. Here you only pay for what you use. IaaS, or infrastructure how a service , is on-demand access to cloud-hosted physical and virtualization servers, storage and networking - the backend IT infrastructure for. Yet while PaaS and IaaS are skewed toward development teams. Hi @Luca Balbiani , For developers, the difference between the two is almost small. Figures compiled by Synergy Research show that AWS alone owns about one-third of the IaaS market, while both Azure and Google are growing annually at triple-digit rates. Azure has 34% of the market share of running applications on Cloud, while AWS and Google have 57% and 15% respectively. In this blog post, we will discuss the differences between these three types of cloud. IaaS adalah layanan cloud computing yang dibangun di atas satu infrastruktur. Even though the end users of infrastructure as a service generally do not actually see the infrastructure that they buy and use, it does physically exist somewhere. Developers don’t manage the underlying infrastructure; they only focus on writing code. However, PaaS customers still get to manage data and applications—in contrast to the SaaS model, where customers don’t have to manage. Unlike PaaS, you will pay for what you. 5 IaaS Characteristics. Application. Kubernetes (k8s) - is a tool for management and launching of containerized apps in the frameworks of declared configuration of containers. Cloud computing includes four types of services that can run on public, private or hybrid cloud: SaaS, FaaS, PaaS and IaaS. Serverless computing is a method of providing backend services on an as-used basis. In contrast, PaaS is a platform that allows developers to. Chat with sales What is IaaS? Infrastructure as a service 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. The key difference between IaaS and PaaS is that IaaS apps are cloud-native, whereas PaaS solutions are cloud-ready. PaaS architectures are similar to serverless computing or function-as-a-service (FaaS) models. IaaS takes the hardware and operating system benefits of PaaS and combines them with the web-based software benefits of SaaS. Its resources involve networks, storage, processing power, and virtual private servers. Rather than buying, installing, and managing physical servers and IT infrastructure, IaaS solutions allow businesses to access computing resources offered by a third-party. These platforms have grown significantly over the last decade, with its worldwide revenue increasing from around $90 billion in 2016 to more than $312 billion in 2020. 85: total time taken for server to run = 1000000 request* 1 sec= 1000000s = 277 hrs. Organizations that rely on IaaS often face vendor lock-in and may need to implement different sets of infrastructure resources and services to deploy the same application to different cloud providers. PaaS architectures are similar to serverless computing or function-as-a-service (FaaS) models. Azure functions shines in scenarios where you need event driven architectures. Serverless computing offers a number of advantages over traditional cloud-based or server-centric infrastructure. g. 3. PaaS stands for Platform as a Service. But, it is not recommended to manipulation of the IaaS resources. When considering SaaS vs. Cloud Migration Containers Hosting Hosting Decision Workflow IaaS vs PaaS vs Serverless Microsoft Azure Serverless. Three cloud service models PaaS, SaaS, and IaaS are the most important among all, so I will start with them. But on the other hand AWS Lambda is usually more expensive than containers because you’re offloading the management and maintenance of services to the cloud provider (AWS). A company that gets backend services from a serverless vendor is charged based on their computation and do not have to reserve. Oracle's services provide an easy migration path to the cloud for companies with a larger Oracle. A serverless architecture is the point at which those two streams converge. High-level of flexibility. Rather than buying, installing, and managing physical servers and IT infrastructure, IaaS solutions allow businesses to access computing resources offered by a third-party. IaaS. This then becomes an all-encompassing, serverless computing option for. Get link; Facebook; Twitter; Pinterest; Email;SaaS is the software platform available through a third party via the internet. IaaS offers the lowest level of abstraction. So how does serverless architecture compare to other types of hosting? Each has its specific advantages and disadvantages. FaaS vs. SaaS: The Advantages and Disadvantages. The user stops paying when the code finishes executing. 1. The difference among these comes down to who is responsible for what — the organizations that own the data or the cloud providers that. In our simple example above, the monthly price difference between the two models. Entering the cloud (IaaS) Setting up and operating your own datacenter came with new operational challenges; cloud computing began to tackle those issues. Virtualization technology allows us to deliver a number of cloud computing services, which can be roughly split into three big groups: infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (SaaS). Infrastructure as a Service (IaaS). Generally speaking, here is a simple way to understand the differences: PaaS will render mechanisms like: CDN – Content. 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), platform-as-a-service (PaaS), and software-as-a-service (SaaS). What is PaaS? PaaS, or Platform-as-a-Service, is a cloud computing model that provides customers a complete cloud platform—hardware, software, and infrastructure—for developing, running, and managing applications without the cost, complexity, and inflexibility that often comes with building and maintaining that platform on-premises. PaaS is also a tried and tested concept, so there are a lot of resources and best. 4 ·. Understanding each type of service and how they are different can help you successfully. We have all three cloud models for the best possible ecommerce set of customization options on the market. The difference between them is the level of abstraction they provide between the user and the infrastructure. SaaS, PaaS, and IaaS are three common terms that describe different kinds of service-based computing. IaaS is ideal if you want the benefits of the cloud (e. Here is a more detailed explanation of the three cloud database solutions: The Cloud Models: IaaS vs PaaS vs SaaS. Like IaaS, Platform as a Service (PaaS) and Software as a Service (SaaS) are cloud computing models. 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). Companies may use all three services or a combination to address their needs. Requires you to code the integrations yourself; API management . IaaS includes virtual servers and cloud storage, cloud security, and access to data center resources (managed by the IaaS provider). Software as a service. It can be divided into 3 categories: IaaS, PaaS, and SaaS. Get the e-book: Cloud-native meets hybrid cloud. 1. That’s where edge computing comes into play. What each organization stands to gain from moving to a microservices architecture depends on their cloud infrastructure choice, said Sergey Sverchkov, a project manager and development lead at Altoros, a Silicon Valley system integrator focused on the cloud. Indeed, these models' basic premise is to offer a solution to the final customer without having to host it on-premise, with complex implementations and large overhead. So how does serverless architecture compare to other types of hosting? Each has its specific advantages and disadvantages. Cloud computing exists in three primary forms today. Container as a Service (CaaS) A CaaS service sits somewhere between IaaS and PaaS, depending on the implementation. Containers are applications that lead to more. PaaS vs. In addition, it’s important to. Azure’s VM options include multiple Windows Server images (2012, 2012R2 and 2016) with multiple versions of SQL pre-installed and pre-configured and multiple Linux. Serverless computing and containers are both architectures that reduce overhead for cloud-hosted web applications, but they differ in several important ways. Each has unique distinctions; here is a breakdown: IaaS is a virtualized infrastructure. Azure offers many options for IaaS environments, but all generally fall into the three categories: VMs, virtual networking, and virtual storage. Overview. At the same time, PaaS enables its clients to develop, execute, and extend. Together, these cloud computing services cover the majority of an organisation’s IT needs. However, the underlying Infra is exposed to CX. The remainder, including database software, is provided and managed by the customer. Azure Container service was more of a Iaas offering which was supporting container orchestration. 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),. Kubernetes vs. Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and FaaS are all cloud computing offerings. 4. Infrastructure as a service (IaaS) — The service provider maintains the physical hardware. It works on the principle of a developer writing a function that can be executed in response. IaaS, PaaS and SaaS are the three most popular types of cloud service offerings. IaaS enables end users to scale and shrink resources on an as-needed basis, reducing the need for high, up. SaaS, PaaS and IaaS are all under the umbrella of cloud computing (building, creating, and storing data over the cloud). ) Let’s consider a simple web application deployment. PaaS . Software as a Service (SaaS) offers the most support, providing your end users with everything except for their data. Its integration with Google App Engine makes it a good option for developers already using that PaaS. Eles são, às vezes, referidos como modelos de serviços da cloud ou modelos de serviços da cloud computing. or Serverless: Functions instead of Applications; AWS Managed Service Offerings. In contrast, BaaS can help developers manage the backend services more quickly and simply in the best possible way. PaaS vs. As the names suggest, they all deliver IT tools on a service basis, with the provider owning and managing. They are Software as a Service (SaaS), Platform as a Service (PaaS), Infrastructure as a Service (IaaS), and Desktop as a Service (DaaS). Infrastructure-as-a-service (IaaS), platform-as-a-service (PaaS), and software-as-a-service (SaaS) are the three main categories of cloud computing models. The four most important differences between Azure and Heroku are: Functionality: Heroku is a PaaS solution with a single purpose: to make it easy for users to build and deploy web applications in the cloud. A PaaS solution may support only specific approaches to application development. Interacting with on-premise / hybrid cloud scenarios? Some hosting solutions cannot be added to a VNet in Azure, making it a lot harder to securely connect these options to resources that are not hosted. Local (On-premise) Somos responsables de todas las aplicaciones, almacenamiento de datos, entorno de ejecución, etc. Use cases of serverless. Popular PaaS examples include:PaaS (Platform as a Service) providers sell access to everything a customer would need to develop an app. A company that gets backend services from a serverless vendor is charged based on their computation and do not have to reserve and pay. Each cloud service has its benefits depending upon the business and functional requirements. Pay for What You Use: Fees are computed via usage-based metrics. 1. IaaS vs PaaS. However, users of PaaS still need to have some awareness of cluster details, such as the number and types of nodes, capacity and. As you move to the right in the above illustration, you abstract away more of the underlying infrastructure stack. IaaS is among the top 3 cloud service models for Amazon Web Services (AWS). 6 IaaS Benefits. IaaS. PaaS providers (many IaaS providers also offer PaaS) are more specialized and provide the framework needed on top of pure infrastructure. In traditional application deployments, the server’s computing resources represent fixed and recurring costs, regardless of the amount of computing work that is actually being performed by. IaaS (Infrastructure as a Service) IaaS is a cloud technology that allows the user to supply loading, saving, connections, and other core computing resources and distribute and execute operating systems and applications. Microsoft Azure, on the other hand, is a full-fledged public cloud service, with PaaS,. The leading service in the cloud computing industry is SaaS with a 39. Azure Container service was more of a Iaas offering which was supporting container orchestration. However, before we can deploy the application, we need to first: 1. Serverless computing is an event-driven application design and deployment paradigm in which computing resources are provided as scalable cloud services . PAAS is used by developers. Platform as a Service (PaaS). Picking between them requires a. 2 You outsource the following services to a PaaS. IaaS provides services for creating an effective business infrastructure in the form of server and network resources, allowing for the availability of a private cloud and. However, PaaS does not include pre-built server-side application logic, such as push notifications and user authentication. Let’s start with what PaaS and IaaS provide: Containers for microservices . IaaS, PaaS and SaaS are the three most popular types of cloud service offerings. SaaS is the software platform available through a third party via the internet. Benefits of PaaS. Platform as a service (PaaS) is a complete development and deployment environment in the cloud, with resources that enable you to deliver everything from simple cloud-based apps to sophisticated, cloud-enabled enterprise applications. With the help of such technologies, a developer can build. Type of Cloud. These three groups comprise the proverbial cloud computing stack. IaaS vs. PaaS vendors. Serverless vs. For some organizations, serverless has become the preferred way to deal with IaaS complexities. What each organization stands to gain from moving to a microservices architecture depends on their cloud infrastructure choice, said Sergey Sverchkov, a project manager and development lead at Altoros, a Silicon Valley system integrator focused on the cloud. IaaS: Infrastructure as a Service. ) Serverless vs. PaaS platforms typically offer everything you need to. These platforms have grown significantly over the last decade, with its worldwide revenue increasing from around $90 billion in 2016 to more than $312 billion in 2020. PaaS vs. Serverless computing has recently emerged as a new execution model for cloud computing, in which service providers offer compute runtimes, also known as Function-as-a-Service (FaaS) platforms, allowing users to develop, execute and manage application. PaaS vs. PaaS, containers, and VMs Because serverless, platform as a service (PaaS) , containers, and virtual machines (VMs) all play a critical role in the cloud application development and compute ecosystem, it’s useful to compare how serverless compares to the others across some key attributes. The constraints on serverless, notably a limit on Lambda execution time and no direct support for stateful code, make the serverless model a poor fit for many typical. There are 4 different types of cloud computing services. IaaS, PaaS, and SaaS. Platform as a Service (PaaS) gives you everything available with IaaS, plus the operating system and databases. Platform as a service (PaaS) is a category of cloud computing that provides a platform for developing and deploying applications. 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. PaaS vs. NET, PHP, Node. IaaS, PaaS, and SaaS are all different options for cloud delivery models. PaaS. One new cloud offering that’s quickly gaining steam is “serverless” computing. Kleiner. • When deployed as PaaS, an application is typically running on at least on the server at all times. Infrastructure-as-a-service (IaaS), also known as cloud infrastructure services, is a form of cloud computing in which IT infrastructure is provided to end users through the internet. PaaS . A PaaS can eliminate the expenses of purchasing, maintaining, and configuring infrastructure. The software’s licensing models allow you to choose the most cost-effective solution for any organization. Together, these cloud computing services cover the majority of an organisation’s IT needs. The latter option gives programmers more. There's a tradeoff between control and ease of management. PaaS remains one of the most distinguishable and widely used solutions on the market. PaaS vs. IaaS vs. g. Serverless is the evolution of cloud platforms in the direction of pure cloud native code. SaaS is an element of cloud computing. minutes to hours for the. Once you understand the “as a service” meaning, let’s move toward our three compute modeling services, their functions, differentiations, and the relevancy of their usage. These all together are known as cloud computing stack as each service is built ‘on top of’ each another. Serverless Computing Defined. PaaS vs. PaaS (Platform as a Service) providers sell access to everything a customer would need to develop an app. You control and manage everything starting from bare metal hardware. Before delving into the differences between IaaS, PaaS, and SaaS,. IaaS: internet as a service. IaaS (Infrastructure as a Service) IaaS is a cloud technology that allows the user to supply loading, saving, connections, and other core computing resources and distribute and execute operating systems and applications. With compiled container images support, almost any application that can be deployed on IaaS can run in a serverless PaaS framework. Delivery and migration. ; Each policy definition in Azure Policy has a single effect IaaS vs PaaS vs SaaS . This post will explore three of the most common and popular cloud computing technologies: PaaS, IaaS, and serverless computing. For many developers, serverless architectures offer greater scalability, more flexibility, and quicker time to release, all at a reduced cost. Depending on the requirements of specific use cases, the customers can choose which Cloud IaaS vendor suits their needs. We will examine each of these models, but let’s first understand Serverless Computing. On the contrary, PaaS solutions are often based on pay-as-you-go models where a flat fee is charged for the service regardless of how much or little you use it. Saas in terms of resilience, IaaS stands out of the three. PaaS vs. Infrastructure-as-a-service (IaaS), platform-as-a-service (PaaS), and software-as-a-service (SaaS) are the three main categories of cloud computing models. Who Manages What: A Look at SaaS, PaaS, Faas, IaaS and FaaS. If the workload is always on and requires minimal tuning of the infrastructure, then the architecture should prioritize application PaaS over IaaS. This overview explores the key differences in SaaS vs. When deployed as PaaS, an application is typically running on at least one server at all times. PaaS . Here are some additional details about the differences between IaaS, PaaS, and SaaS: Level of control: IaaS provides users with complete control over the infrastructure layer, including virtual. They are also in charge of managing the. FaaS, a type of serverless computing, and PaaS solutions both abstract away the backend infrastructure management for developers and allow developers to focus on the application code, but there are a few key differences between the two. The rise of serverless computing has also had a negative effect on PaaS. An IaaS provider solution includes: Server and components. SaaS provides software applications accessible to. , on-premises has 9 red layers, IaaS has 4, and PaaS has just 1 - suggesting that they are more different than they are similar; oh, and PaaS is more ‘coolWe would like to show you a description here but the site won’t allow us. IaaS, PaaS e SaaS são os três tipos mais populares de soluções de serviços da cloud. AWS Elastic Beanstalk is Amazon's native platform for deploying web applications. SaaS vs. You hire a taxi to travel from Point A to Point B and pay for the “Metered” use of the Taxi. Serverless development systems, such as AWS Lambda, provide many of the same benefits as PaaS tools, such as developer freedom from instance deployment. Functionality: Unlike Heroku,. IaaS lets customer avoid the up-front expense and overhead of purchasing and maintained its own on-premises data center. The 3 main cloud computing models: Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS), and Software-as-a-Service (SaaS) allow you to outsource varying degrees of computing work and hardware maintenance to a cloud provider like Amazon or Microsoft. g. You don’t combine them into one app, but send them separately to the provider, and the provider builds the app. IaaS can help organizations find efficiencies with hardware and facilities costs, but PaaS can further reduce administrative overhead and expand usage to less technical customers. Native & Hybrid Development Strategy: PaaS solutions enable cloud native development technologies, like Kubernetes, serverless computing, microservices, and containers. IaaS. Serverless abstracts. Cloud providers like AWS and Azure typically include many different types of PaaS ready for lease and already geared for specific projects. Like PaaS, FaaS is a cloud computing model that abstracts server management and low-level infrastructure decisions away from developers, but it goes much. Think about them in terms of out-of-the-box functionality and building from the bottom up. Serverless computing hides the entire backend. IaaS offers many advantages, including: The most flexible cloud computing model. These all together are known as cloud computing stack as each service is built ‘on top of’ each another. 開發工程師負責實現商業邏輯，也就是撰寫程式碼，維運. Here, your cloud provider gives you the complete. Comparing FaaS vs PaaS. Serverless APIs are the same as traditional APIs, except they utilize a. IaaS: infrastructure as a service. A serverless provider allows users to write and deploy code without the hassle of worrying about the underlying infrastructure. Azure SQL as the default choice. Store, maintain, and manage a business’s database. The end result is fewer coding responsibilities for. Many CSPs offer a spectrum of cloud computing “as a Service” choices, from mere access to server hardware up to and including full-scale, comprehensive options like FaaS. IaaS, or infrastructure as a service, is on-demand access to cloud-hosted physical and virtual servers, storage and networking - the backend IT infrastructure for running. PaaS takes it further and handles the management of the operating system and middleware. The provider will then execute that function and then shut down the server, allowing those resources to be allocated elsewhere. PaaS (platform-as-a-service) is a form of cloud computing that enables software developers to build, run, and manage software applications easily. IaaS vs PaaS. The term serverless computing is a bit of a misnomer, and it leads some people to believe that there are no servers involved in the process at all. SaaS. Cloud computing services fall into 4 categories: infrastructure as a service (IaaS), platform as a service (PaaS), serverless, software as a service (SaaS)Keep reading to learn the differences between Azure vs Firebase vs AWS. From Azure Docs: Serverless computing is a cloud-hosted execution environment that runs your code but completely abstracts the underlying hosting environment. However, which one you choose depends on your business’s requirements. PaaS, or Platform-as-a-Service, is a cloud computing model that provides customers a complete cloud platform—hardware, software, and infrastructure—for developing, running, and managing applications without the cost, complexity, and inflexibility that often comes with building and maintaining that platform on-premises. The AWS, Google Cloud Platform, Azure, OpenStack, ZStack and others are IaaS. Instead of stressing about the backend architecture supporting a particular function, developers may concentrate on that function.