Nov 1, 2021 · IaaS, PaaS Y SaaS: Tipos servicios cloud y sus características. La computación en la nube te permite múltiples beneficios como reducir tus costos de TI, agilizar flujos de trabajo, escalar mucho más rápido y tener mayor rentabilidad. Pero es necesario que elijas el servicio correcto de acuerdo a tu necesidad. Platform as a service (PaaS) is a cloud computing model in which a third-party provider delivers hardware and software tools -- usually those needed for application development -- to users over the internet. A PaaS provider hosts the hardware and software on its own infrastructure . As a result, PaaS frees users from having to …PaaS khác với SaaS, Paas cung cấp nền tảng để phát triển ứng dụng. Thông thường, bạn sẽ phải cài IDE, hoặc chạy máy chủ ảo cloud,…, điều đó không cần khi sử dụng PaaS, đỡ tốn thời gian cài đặt, bớt đi một khoản …If you ask in general if Salesforce can be considered as *aaS, then conceptually it is Yes. However what you get as an "offering" is just the PaaS and SaaS capabilities. Its both. Software as a service (or SaaS; pronounced /sæs/) is a way of delivering centrally hosted applications over the Internet—as a service.Three cloud service models PaaS, SaaS, and IaaS are the most important among all, so I will start with them. PaaS. PaaS stands for Platform as a Service. Here, your cloud provider gives you the complete platform to use. When I say the complete platform to use, it means the provider takes care of all the underlying parts of the infrastructure.In today’s digital landscape, businesses are increasingly relying on Software as a Service (SaaS) solutions to streamline their operations. With the growing number of SaaS applicat...This model is usually called XaaS or Anything-as-a-service. It includes all the services in a cloud that customers can order over the Internet. "X" can be changed: IaaS refers to infrastructure as a service, PaaS — a platform for development, SaaS — a software as a service. IaaS, PaaS, and SaaS are the …Software as a service (SaaS) allows users to connect to and use cloud-based apps over the Internet. Common examples are email, calendaring, and office tools (such as Microsoft Office 365). SaaS provides a complete software solution that you purchase on a pay-as-you-go basis from a cloud service provider. You rent the use of an app for your ... IaaS，PaaS和SaaS之间有什么区别？. 在托管定制应用程序时，IaaS可以为您提供最大程度的灵活性，并为数据存储提供通用数据中心。. PaaS通常建立在IaaS平台之上，以减少系统管理的需求。. 它使您可以专注于应用程序开发，而不是基础架构管理。. SaaS提供满足特定 ... PaaS databases help automate provisioning, configuration, scaling and other cluster management tasks.PaaS can free your team from setting up and managing infrastructure, which they would need to do with IaaS. PaaS is the middle option in our IaaS-PaaS-SaaS continuum, and many cloud databases are offered …In conclusion, SaaS, PaaS, IaaS are cloud-based services that offer different levels of infrastructure and services. A simple overview of cloud services tells us that SaaS is a software-based service, PaaS is a platform-based service, and IaaS is an infrastructure-based service. Let’s summarize the differences between …This model is usually called XaaS or Anything-as-a-service. It includes all the services in a cloud that customers can order over the Internet. "X" can be changed: IaaS refers to infrastructure as a service, PaaS — a platform for development, SaaS — a software as a service. IaaS, PaaS, and SaaS are the main models of providing cloud services.All segments of the cloud market are expected see growth in 2024. Infrastructure-as-a-service (IaaS) is forecast to experience the highest end-user spending growth in 2024 at 26.6%, followed by platform-as-a-service (PaaS) at 21.5% (see Table 1). Table 1. Worldwide Public Cloud Services End-User Spending Forecast (Millions of U.S. …二、IaaS/PaaS平台架构. IaaS/PaaS平台的架构通常包括以下几个关键组件： 虚拟化技术：虚拟化技术是IaaS平台的核心，它能够将物理硬件资源虚拟化成多个虚拟 … Software as a Service works through a cloud delivery model. SaaS vendors commonly host applications and data on their own servers and databases, or utilize the servers of a third-party cloud provider. SaaS vendors also manage platforms, operating systems, and middleware. Once a subscription to a SaaS solution is signed, the provider grants the ... ONPASSIVE : The Cloud Service Models Demystified: IaaS, PaaS, and SaaS https://ift.tt/GZ1QCKB Utilizing several cloud service models has long been a regular …IaaS is one of the four types of cloud services, along with software as a service ( SaaS ), platform as a service ( PaaS ), and serverless. Migrating your organization's …IaaS vs. PaaS vs. SaaS. IaaS is infrastructure hosted in the cloud. IaaS includes virtual servers and cloud storage, cloud security, and access to data center resources (managed by the IaaS provider). Platform-as-a-service (PaaS) is the next layer in the cloud computing service model. It provides developers with a platform for building ...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. IaaS is one of the four types of cloud services, along with software as a service ( SaaS ), platform as a service ( PaaS ), and serverless.Lionel Sujay Vailshery. AWS is the leading IaaS and PaaS cloud vendor worldwide with estimated revenues of 62.3 billion U.S. dollars in 2021, a number that is forecast to grow to more than 80 ... เปรียบเทียบความแตกต่าง IaaS vs. PaaS vs. SaaS . . ระบบคลาวด์เป็นประเด็นร้อนสำหรับธุรกิจขนาดเล็กไปจนถึงองค์กรขนาดใหญ่ เมื่อผู้ประกอบการเริ่มพิจารณา ... Many businesses rely on SaaS companies to help them run their everyday operations. Here are 13 tips to better utilize your SaaS tools. Many businesses rely on software-as-a-service...Мы занимаемся разработкой IaaS, PaaS, SaaS более 6 лет. Вы можете просмотреть портфолио подобных проектов. Разработчики среднего и высшего уровня.24 Oct 2019 ... IaaS vs PaaS vs SaaS – cloud service models compared · 1. IaaS (Infrastructure-as-a-Service) offers environments that are scalable, controllable ...Public PaaS is derived from software as a service (SaaS), and is situated in cloud computing between SaaS and infrastructure as a service (IaaS). SaaS is software hosted in the cloud so that it does not take up hard drive space on the computers of users. IaaS provides virtual hardware from a provider with adjustable scalability.It's both. Like IaaS, PaaS includes infrastructure—servers, storage, and networking—but also middleware, development tools, business intelligence (BI) services, database management systems, and more. PaaS is designed to support the complete web application lifecycle: building, testing, deploying, managing, and updating. https://azure ... PaaS, IaaS and SaaS Like PaaS, Infrastructure-as-a-Service (IaaS) and Software-as-a-Service (SaaS) are common cloud computing service models. In fact, it's common for an organization to use all three—even if they don't purchase all three specifically. Whether IaaS, PaaS, or SaaS, the cloud service model is a powerful tool that can simplify operations, drive innovation, and ensure your business remains competitive … What is IaaS vs. PaaS vs. SaaS? The different cloud-computing models are defined by how much each option brings to the table. Designed to support and enhance an organization’s IT capabilities, each model can be thought of as providing a different level of service: IaaS provides the most-limited support and resources, while SaaS provides a ... FedRAMP is working with 156 agencies and has 213 cloud vendors that are FedRAMP-ready, authorized or in process according to Mahan. Of the services in the FedRAMP program, 67 percent of them are SaaS, 20 percent are IaaS and 13 percent are PaaS. FedRAMP is seeing agencies use all three models to address very specific needs, …PaaS databases help automate provisioning, configuration, scaling and other cluster management tasks.PaaS can free your team from setting up and managing infrastructure, which they would need to do with IaaS. PaaS is the middle option in our IaaS-PaaS-SaaS continuum, and many cloud databases are offered …IaaS, PaaS Y SaaS: Tipos servicios cloud y sus características. La computación en la nube te permite múltiples beneficios como reducir tus costos de TI, agilizar flujos de trabajo, escalar mucho más rápido y tener mayor rentabilidad. Pero es necesario que elijas el servicio correcto de acuerdo a tu necesidad.Platform as a Service. Software as a service. User object. IAAS used by network architects. PAAS is used by developers. SAAS is used by end users. Grant permission. IAAS grants access to resources such as virtual machines and virtual memory. PAAS grants access to the runtime environment for deployment …Memahami itu SaaS, IaaS, dan PaaS. Jika kita ingin memulai mengadopsi teknologi ini, seperti kita bahas sebelumnya ada tiga model layanan cloud yang harus kita kenali. Beberapa pembagiannya ialah ; Perangkat Lunak sebagai Layanan (Software as a Service : SaaS), Platform sebagai Layanan (Platform as a Service : PaaS) dan …In our article, we want to have the terms SaaS, PaaS, IaaS explained in order to help you develop the right understanding of the concept and create a suitable cloud migration strategy for your organization. IaaS — Infrastructure as a Service. PaaS — Platform as a Service. SaaS — Software as a Service.This model is usually called XaaS or Anything-as-a-service. It includes all the services in a cloud that customers can order over the Internet. "X" can be changed: IaaS refers to infrastructure as a service, PaaS — a platform for development, SaaS — a software as a service. IaaS, PaaS, and SaaS are the main models of providing cloud services.Software-as-a-Service (SaaS) has revolutionized the way businesses operate, offering cost-effective and scalable solutions. However, developing a successful SaaS software is not wi...Benefits of IaaS cloud model. On-demand scalability. A clear benefit of the IaaS cloud model is that it can be scaled fast according to the growing business requirements of your company. IaaS vendors offer the most powerful storage and networking technology to satisfy the needs of their customers. Great reliability.SaaS: Cung cấp các trạng thái cho phép người dùng sử dụng các phần mềm sẵn có bên cạnh PaaS. PaaS: Cung cấp Platform và cơ sở hạ tầng của IaaS. IaaS: Cung cấp các tùy chọn máy chủ. So sánh giữa các dịch vụ IaaS PaaS SaaS. Trên đây là bài viết chia sẻ IaaS là gì và sự khác ...Mar 20, 2024 · PaaS deployment. The deployment complexity of PaaS is somewhat intermediate when considering the three cloud service models, as it is less straightforward than SaaS but significantly easier than IaaS. This is because PaaS platforms often provide built-in development tools, CI/CD pipelines, and integrated databases. There are three common types of cloud computing services: IaaS (Infrastructure-as-a-Service), PaaS (Platform-as-a-Service), and SaaS (Software-as-a …The SaaS growth rate, however, is beginning to slow, especially compared to other cloud services like platform as a service (PaaS) and infrastructure as a service (IaaS), both of which are projected to double from just 2020. (Understand SaaS fully in our SaaS vs PaaS vs IaaS explainer.) Largest SaaS …Platform as a Service (PaaS) Platform as a Service is a cloud solution that allows businesses to use cloud-based platforms for app development and other operations. The platform on the cloud includes automation tools, coding support, and is structurally sound to support any IT process. Example of PaaS include Google …Benefits of IaaS cloud model. On-demand scalability. A clear benefit of the IaaS cloud model is that it can be scaled fast according to the growing business requirements of your company. IaaS vendors offer the most powerful storage and networking technology to satisfy the needs of their customers. Great reliability.IaaS vs. PaaS vs. SaaS. Like other “as a service” models, such as Platform as a service (PaaS) and Software as a service (SaaS), infrastructure as a service models offer a degree of management. But what exactly is the difference between IaaS, PaaS, and SaaS? The answer is that they each provide a different cloud service: an infrastructure ...IaaS vs. PaaS vs. SaaS: Main Differences. Infrastructure as a Service is a self-service solution in which the third-party vendor provides scalable cloud computing infrastructure. The host provides the infrastructure while the customer manages software. Platform as a Service is a solution that provides the …As IaaS and SaaS emerged and rapidly became a mainstay of many corporate IT environments, the only missing piece of the software stack was the platform layer. The need to address this essential middle layer is central to the next step in the evolution of cloud services. The Emergence of PaaSCloud service refers to a wide range of services delivered on demand to companies and customers over the internet. It can be divided into 3 categories: IaaS, PaaS, and SaaS.Infrastructure as a Service (IaaS). The capability provided to the consumer is to provision processing, storage, networks, and other fundamental computing resources where the ... Cloud Computing, SaaS, PaaS, IaaS, On-demand Self Service, Reserve Pooling, Rapid Elasticity, Measured Service, Software as a Service, Platform as a …Security responsibilities vary between different cloud service classifications: IaaS, PaaS and SaaS. Here’s the general rule of thumb: For infrastructure as a service (IaaS), the user is responsible for the most resources, from the application layer to the network layer, where responsibility is shared with the vendor.17 Jun 2022 ... Die meisten Vertragslaufzeiten für Cloud-Produkte sind recht kurz und lassen sich so flexibel planen - egal ob IaaS, PaaS oder SaaS. Durch die ...14 Feb 2023 ... Atlassian provides a SaaS option for businesses that want to access their tools without any advance customisation or complex data and security ...Jun 22, 2022 · IaaS is 1 of 3 widely recognized cloud service models—alongside Platform-as-a-Service (PaaS) and Software-as-a-Service (SaaS)—that gives users all the benefits of on-premise computing resources without the overhead. In the IaaS model, users handle the applications, data, operating system, middleware, and runtimes. The SaaS growth rate, however, is beginning to slow, especially compared to other cloud services like platform as a service (PaaS) and infrastructure as a service (IaaS), both of which are projected to double from just 2020. (Understand SaaS fully in our SaaS vs PaaS vs IaaS explainer.) Largest SaaS companiesPaaS khác với SaaS, Paas cung cấp nền tảng để phát triển ứng dụng. Thông thường, bạn sẽ phải cài IDE, hoặc chạy máy chủ ảo cloud,…, điều đó không cần khi sử dụng PaaS, đỡ tốn thời gian cài đặt, bớt đi một khoản …AWS approaches Software-as-a-Service (SaaS) as a business and software delivery model that enables organizations to provide their offering to customers in a low-friction and service-centric manner. AWS works with organizations to build a SaaS model that establishes agility and operational efficiency as pillars of their business strategy ...PaaS (platform as a service)—not to be confused with SaaS (software as a service)—is a set of cloud services used to build and manage modern applications and data either on-premises or in the cloud. PaaS delivers infrastructure and middleware components in the cloud that enable developers and IT administrators to build and manage mobile apps and …Platform as a Service (PaaS) This is a development team’s dream. It vastly reduces development time and overall costs. PaaS leverages mobility as well; a crucial concept for a modern MSP in this constantly on-the-go era. Software as a Service (SaaS) SaaS makes it to so Fortune 500 functionality is available for all businesses.IaaS, PaaS, SaaS: The most common cloud computing Services. At the risk of making you choke on your alphabet soup, this guide will cover everything you need to know about the three main types of cloud services in the cloud computing environment. That is, Infrastructure as a Service (Iaas), Platform as a Service (PaaS) and Software as a …IaaS vs. PaaS vs. SaaS. IaaS, PaaS, and SaaS are the three common categories of cloud service models. IaaS provides on-demand access to cloud-hosted physical IT infrastructure, including servers, networking, and storage resources. You can think of IaaS as a cloud-hosted backend IT infrastructure that runs applications and …IaaS vs PaaS vs SaaS. Розібравшись, що саме означає вираз “як послуга”, перейдемо до наших трьох сервісів обчислювального моделювання, їх функцій, відмінностей та релевантності їх використання.Pros and Cons of PasS. What is SaaS? Uses of SaaS. Where is SaaS being used? Pros & Cons of SaaS. Difference Between SaaS vs PaaS vs IaaS. Choosing …As IaaS and SaaS emerged and rapidly became a mainstay of many corporate IT environments, the only missing piece of the software stack was the platform layer. The need to address this essential middle layer is central to the next step in the evolution of cloud services. The Emergence of PaaSThis Tec2Check video explains the main differences between Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS)...SaaS is preferable if the developer has limited experience with system management; Which is best for your business needs? PaaS vs. SaaS. From a technical perspective, the difference between PaaS and SaaS comes down to whether the cloud-computing solution is used as an out-of-the-box tool or as part …Všechny tyto služby jsou velmi specifické, jejich charakter ale vychází ze tří základních kategorií – IaaS (Infrastructure as a Service), PaaS (Platform as a Service) a SaaS (Software as a Service). Liší se od sebe rozsahem toho, co zajišťuje poskytovatel a tím, co si musí zákazník obstarat sám. Všechny tři varianty si ...Mar 7, 2023 · 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 services is the right one for my ... PaaS, IaaS and SaaS Like PaaS, Infrastructure-as-a-Service (IaaS) and Software-as-a-Service (SaaS) are common cloud computing service models. In fact, it's common for an organization to use all three—even if they don't purchase all three specifically. Apr 28, 2020 · 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). In effect, each of these models offers a progressive level of abstraction – or management – by the cloud provider. 19 Jan 2016 ... Was sind IaaS, PaaS & SaaS? ... Home » Blog » Virtualisierung » Was sind IaaS, PaaS & SaaS? Beim Cloud-Computing lassen sich generell drei ...SaaS・PaaS・IaaSの違いを理解していますか。〇aaSという用語は非常に多くあるため、それぞれの意味を正しく把握している人は少ないでしょう。SaaS・PaaS・IaaSに加え、近年注目されているDaaSやFaaSについて解説します。クラウドサービスへの理解を深めましょう。Public PaaS is derived from software as a service (SaaS), and is situated in cloud computing between SaaS and infrastructure as a service (IaaS). SaaS is software hosted in the cloud so that it does not take up hard drive space on the computers of users. IaaS provides virtual hardware from a provider with adjustable scalability.Platform as a Service. Software as a service. User object. IAAS used by network architects. PAAS is used by developers. SAAS is used by end users. Grant permission. IAAS grants access to resources such as virtual machines and virtual memory. PAAS grants access to the runtime environment for deployment …PaaS deployment. The deployment complexity of PaaS is somewhat intermediate when considering the three cloud service models, as it is less straightforward than SaaS but significantly easier than IaaS. This is because PaaS platforms often provide built-in development tools, CI/CD pipelines, and integrated databases.20 Jan 2022 ... SaaS vs. IaaS vs. PaaS, including Citrix Virtual Apps and Desktops service — a DaaS solution that can be fully deployed and managed from the ...总结：VMware OpenStack作为IaaS、PaaS和SaaS的完美结合，为企业提供了灵活、安全、高效的云计算环境。通过VMware OpenStack，企业可以快速地部署和 … Software as a Service works through a cloud delivery model. SaaS vendors commonly host applications and data on their own servers and databases, or utilize the servers of a third-party cloud provider. SaaS vendors also manage platforms, operating systems, and middleware. Once a subscription to a SaaS solution is signed, the provider grants the ... In our article, we want to have the terms SaaS, PaaS, IaaS explained in order to help you develop the right understanding of the concept and create a suitable cloud migration strategy for your organization. IaaS — Infrastructure as a Service. PaaS — Platform as a Service. SaaS — Software as a Service.Chào mọi người, Khi mọi người vào phần about của các ứng dụng web (web application), bạn có thể thấy là nó giới thiệu là IaaS, PaaS, SaaS, BaaS. Vậy mấy thuật ngữ này có ý nghĩa gì, cùng nhau tìm hiểu nhé. Dĩ nhiên, đối với những ai có dự định phát triển một ứng dụng web, việc hiểu rõ những khái niệm này ...Indeed, IaaS/PaaS/SaaS are in fact, just that. They are all virtualization solutions, just at different levels of the computing stack. IaaS, for example, is aimed at virtualizing the hardware from ...Learn the differences between IaaS, PaaS, and SaaS, the three main types of cloud computing as-a-service options. See how Red Hat can help you use any or all of …Jun 21, 2022 · Source: t4. IaaS provides you the most freedom of control as it lets you manage your applications, data, middleware, and operating system. On the other hand, PaaS allows you to manage your data and applications only, and with SaaS, everything is managed by your service provider. Public PaaS is derived from software as a service (SaaS), and is situated in cloud computing between SaaS and infrastructure as a service (IaaS). SaaS is software hosted in the cloud so that it does not take up hard drive space on the computers of users. IaaS provides virtual hardware from a provider with adjustable scalability.IaaS, PaaS and SaaS each have strengths that make them the right choice for a given situation. Image Source: BMC. With infrastructure as a service, the cloud computing provider supplies and manages the physical infrastructure — the servers, storage and networking hardware — and the customer manages everything else, including the … Infrastructure as a Service (IaaS) Infrastructure as a Service, sometimes abbreviated as IaaS, contains the basic building blocks for cloud IT and typically provide access to networking features, computers (virtual or on dedicated hardware), and data storage space. Infrastructure as a Service provides you with the highest level of flexibility ... In today’s fast-paced business landscape, organizations are constantly looking for ways to streamline their operations and increase efficiency. One solution that has gained signifi...Fujitsu is understood to be the preferred bidder for the Proof of Age Standards Scheme (PASS) run by a non-profit company endorsed by the Home Office. … Software as a service (SaaS) allows users to connect to and use cloud-based apps over the Internet. Common examples are email, calendaring, and office tools (such as Microsoft Office 365). SaaS provides a complete software solution that you purchase on a pay-as-you-go basis from a cloud service provider. You rent the use of an app for your ...
21 Jul 2020 ... This blog post provides insight into the fundamentals of IaaS, SaaS, and PaaS, which will help you make an informed decision for your .... Kitko gold chart
SaaS กับ IaaS. SaaS นำเสนอซอฟต์แวร์โดยบุคคลที่สามที่ครอบคลุมที่สุด รวมถึงทางเลือกในการบำรุงรักษา ในขณะที่ IaaS จะจัดหาและบำรุงรักษา ...Jun 24, 2022 · SaaS: Many small companies, start-ups and those with short-term projects use SaaS. PaaS: When multiple developers need to work on a single project, PaaS is the best choice. IaaS: Larger companies with a lot of hardware needs and a low budget may choose IaaS. PaaS deployment. The deployment complexity of PaaS is somewhat intermediate when considering the three cloud service models, as it is less straightforward than SaaS but significantly easier than IaaS. This is because PaaS platforms often provide built-in development tools, CI/CD pipelines, and integrated databases.PaaS vs. SaaS vs. IaaS: Final Word. Cloud computing model is the solution for so many things as the sheer computing power of the cloud makes so many things possible: Cloud can handle different aspects of a company’s workflow – make it easier and more transparent. SaaS, PaaS and IaaS are the three primary ‘as a service’ computing models offered by cloud service providers. Each model appeals to a different kind of cloud computing customer, and offloads a different degree of IT management to the cloud service provider. PaaS, IaaS and SaaS Like PaaS, Infrastructure-as-a-Service (IaaS) and Software-as-a-Service (SaaS) are common cloud computing service models. In fact, it's common for an organization to use all three—even if they don't purchase all three specifically. To clarify: IaaS is internet access to 'raw' IT infrastructure—physical servers, virtual ...IaaS vs. PaaS vs. SaaS. IaaS is one of three main types of cloud services, along with software-as-a-service and platform-as-a-service . Like PaaS and SaaS, IaaS offers access to its services ...15 Dec 2023 ... What are IaaS, PaaS, and SaaS, and what are the differences between these cloud computing services? We'll explain it all here using a simple ...31 Jan 2023 ... So basically it's like subscription where you only focused on the service (duh? Self) and other parts are hidden to you (maintenance, fixes, ...Platform as a Service (PaaS), Infrastructure as a Service (IaaS). Software as a Service (SaaS) A felhő alapú szolgáltatások közül az üzleti ügyfelek számára ez a leggyakrabban használt megoldás. Az SaaS lényege, hogy a hagyományos módszerrel szemben itt nincs szükség szoftver saját szerveren történő telepítésére.IaaS, PaaS and SaaS each offer a progressive layer of abstraction after that. IaaS abstracts away the physical compute, network, storage and the technology needed to virtualize those resources. PaaS goes a step further and abstracts away the management of the operating system, middleware and runtime.Customer success is crucial for any SaaS company looking to thrive in today’s competitive market. One of the most critical factors in ensuring customer success is providing a seaml...了解雲端技術的運作原理後，也應同時了解雲端服務的3大模式：SaaS、IaaS和PaaS所分別代表的含義。本文將帶你詳細認識SaaS是什麼？以及SaaS與IaaS、PaaS等雲端服務有何不同？讓你一次完整理解SaaS所具備的優勢，以及應用在哪些具體的產品服務上。What do IaaS, PaaS, and SaaS mean? There are three major types of cloud services: IaaS, PaaS, and SaaS. You’ve probably seen these abbreviations on the websites of cloud providers. Before going into details, let’s compare IaaS, PaaS, and SaaS to transportation: On-premises IT infrastructure is like owning a car.This model is usually called XaaS or Anything-as-a-service. It includes all the services in a cloud that customers can order over the Internet. "X" can be changed: IaaS refers to infrastructure as a service, PaaS — a platform for development, SaaS — a software as a service. IaaS, PaaS, and SaaS are the main models of providing cloud services..