Learn more about serverless, PaaS (Platform as a Service). FaaS, frequently referred to as serverless computing, offers a remarkable way to deal with application development. In effect, each of these models offers a progressive level of abstraction – or management – by the cloud provider. The service supports Java, . Azure Functions users can deploy code directly on the Azure Functions service or run the software inside Docker containers. But, it is not recommended to manipulation of the IaaS resources. PaaS vs. The tech world has witnessed an onslaught of “aaS” offerings in recent years. Explore the differences between serverless applications & Infrastructure as a service (IaaS) What is Infrastructure-as-a-Service (IaaS) ? Under the commonly used Infrastructure-as. Serverless can replace VMs and containers for some application workloads, but the comparison of Lambda vs. Each has unique distinctions; here is a breakdown: IaaS is a virtualized infrastructure. They are Software as a Service (SaaS), Platform as a Service (PaaS), Infrastructure as a Service (IaaS), and Desktop as a Service (DaaS). PaaS vs. SaaS. By way of example, if one was to create a food delivery app under an IaaS setup. In each case companies consume IT resources on-demand from external cloud providers,. Store, maintain, and manage a business’s database. IaaS vs PaaS. That answer is application-dependent, according to Volk. SaaS. Elastic Beanstalk isn't so simple. SaaS. g. Serverless vs. Cloud Computing ModelsAccepted answer. PaaS. 이. PaaS examples. Start planning your hybrid cloud strategy. IaaS vs PaaS vs SaaS Three categories of cloud computing ; 📝 IaaS, PaaS, SaaS. Software as a Service (SaaS). Serverless - is a concept of computing resources. Think about them in terms of out-of-the-box functionality and building from the bottom up. The term Serverless gives a clue about the level of abstraction. 6 IaaS Benefits. It is a serverless, cost-effective solution with built-in machine learning and real-time and multi-cloud analytics. IaaS takes away the physical computing, storage, and the tech to virtualize that. Serverless abstracts. SaaS provides software. PaaS vs. Your app will always have at least one instance running on PaaS. There, we get a virtual server with an IaaS offering like AWS EC2. 一般而言，工程師可以簡單分成開發（Development）跟維運（Operation）兩類。. For many developers, serverless architectures offer greater scalability, more flexibility, and quicker time to release, all at a reduced cost. For some organizations, serverless has become the preferred way to deal with IaaS complexities. We have all three cloud models for the best possible ecommerce set of customization options on the market. a. All server provisioning and management operations including software installation are handled by the user. 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 are Software as a Service (SaaS), Platform as a Service (PaaS) and Infrastructure as Service (IaaS). Containerization. You hire a taxi to travel from Point A to Point B and pay for the “Metered” use of the Taxi. A PaaS solution may support only specific approaches to application development. PaaS . Analyze and mine data for business analytics. The future of PaaS. 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. PaaS is also a tried and tested concept, so there are a lot of resources and best. AWS, Azure and Google Cloud are the most common options for a public IaaS provider. When considering SaaS vs. IaaS, PaaS e SaaS são os três tipos mais populares de soluções de serviços da cloud. Most companies use Cloud Functions as a serverless backend, but it can also support real-time data processing and intelligent applications. But with PaaS, the level of abstraction is taken one step further. IaaS, PaaS, and SaaS are all different ways of collecting and analyzing data. Serverless: Resolving the Dilemma. Serverless vs. SaaS provides software applications accessible to. Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and FaaS are all cloud computing offerings. When containers were first introduced in 2008. Along with SaaS and PaaS solutions, IaaS is one of the three primary categories of cloud computing services. For some organizations, serverless has become the preferred way to deal with IaaS complexities. Find out the details and examples of both things to have a better idea of the serverless computing. Serverless allows its clients to designate the system sources & to run the server dynamically. 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. By way of example, if one was to create a food delivery app under an IaaS setup. Developers don’t manage the underlying infrastructure; they only focus on writing code. IaaS provides the most basic requirements for hardware—like servers, memory, and computational resources for an application. PaaS vs. Unlike PaaS (Platform as a Service) and SaaS (Software as a Service) and even newer computing models like containers and serverless, IaaS gives you the most control over your cloud resources. It can be divided into 3 categories: IaaS, PaaS, and SaaS. Azure Container service was more of a Iaas offering which was supporting container orchestration. Container as a Service (CaaS) A CaaS service sits somewhere between IaaS and PaaS, depending on the implementation. There are many Platform as a Service vendors that companies can use to create customized apps. IaaS removes physical computing, network, storage, and technology from the equation. However, PaaS customers still get to manage data and applications—in contrast to the SaaS model, where customers don’t have to manage. Short comparison: On premise vs. On the contrary, PaaS solutions are often based on pay-as-you. Serverless vs. In this blog post, we will discuss the differences between these three types of cloud. g. IaaS, PaaS and SaaS are not mutually exclusive. For example, legacy systems typically rely on VMs, while greenfield cloud applications are often built on containers and serverless computing infrastructure. PaaS . (FaaS), also known as serverless computing, is suitable for users who need to run a specific function or component of an application, without managing servers. While PaaS enables you to create unique applications without hosting them on-premises, IaaS gives you more control over your operating systems. IaaS customers use the hardware via. This cost-effective cloud computing model enables businesses to utilize a development, testing, and deployment environment all through the internet. Simply put, IaaS, PaaS, and SaaS each bring a layer of abstraction. 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 of a suite of customizable software. 0 while give you more idea on it. Serverless 與 FaaS. The provider will then execute that function and then shut down the server, allowing those resources to be allocated elsewhere. It provides developers with a platform for building applications. It’s the point at which an individual’s effort is most granularly focused on the specific task and the waste in the system is at a minimum. IaaS, PaaS, and SaaS. Some IaaS providers also offer serverless solutions but as distinctly different products. By comparing each model, you can decide which cloud model is right for your business requirements. Infrastructure as a Service (IaaS): IaaS provides virtualized computing resources. You control and manage everything starting from bare metal hardware. 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. A PaaS can eliminate the expenses of purchasing, maintaining, and configuring infrastructure. PaaS vs. Since FaaS products remove IT infrastructure from the customer’s concerns, FaaS may be considered a subset of serverless computing. Local (On-premise) Somos responsables de todas las aplicaciones, almacenamiento de datos, entorno de ejecución, etc. There are 4 different types of cloud computing services. AWS Elastic Beanstalk and Google Cloud App Engine are two such offerings. It works on the principle of a developer writing a function that can be executed in response. IaaS. IBM, meanwhile, provides an interesting mix of an open source IaaS, IBM. That’s where edge computing comes into play. Currently working with AWS. Serverless computing and containers are both architectures that reduce overhead for cloud-hosted web applications, but they differ in several important ways. 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. IaaS services are offered on a pay-as-you-go basis, allowing organizations to scale their infrastructure up and down as needed. Few are sometimes referred up as cloud service models or cloud computing service models. ; Allows using a combination of these types of infrastructure. Serverless Computing: How to Optimize AWS Lambda. Each has unique distinctions; here is a breakdown: IaaS is a virtualized infrastructure. With so many emerging innovations, and new. The most distinct difference between IaaS and PaaS is that IaaS offers administrators more direct control over operating systems, and PaaS offers users greater flexibility and ease of operation. NET, PHP, Node. IaaS - SaaS - PaaS 의 차이. g. IaaS Advantages. PaaS is a cloud computing model. Cloud computing is divided into three categories namel y SaaS, PaaS and IaaS. ) Let’s consider a simple web application deployment. PaaS vs. Here, your cloud provider gives you the complete platform to use. CaaS vs PaaS, IaaS, and FaaS; How CaaS Works; Top Container as a Service Providers; CaaS vs PaaS, IaaS, and FaaS. Cloud solutions for data storage have been around since the 2000s. Benefits of IaaS. Infrastructure as a Service Explained. PaaS platforms typically offer everything you need to. Firebase Overview. Compared to traditional IT, IaaS gives customers more flexibility build out computing resources as needed, and to weight them up or down in response to thorn or slow-downs in traffic. Firebase is a Backend as a Service (BaaS) type of cloud computing platform that was made public in 2011, and Google got its ownership in 2014. Delivery and migration. PaaS vs. Get link; Facebook; Twitter; Pinterest; Email;SaaS is the software platform available through a third party via the internet. Let’s start with what PaaS and IaaS provide: Containers for microservices . IAAS gives access to the resources like virtual machines and virtual storage. PaaS is a complete environment of development and deployment in the cloud. PaaS (Platform as a Service) providers sell access to everything a customer would need to develop an app. CaaS vs PaaS, IaaS, and FaaS. These cloud services are hosted in gigantic datacenters. For instance, if an organization is accustomed to development and deployment on AWS EC2 and other IaaS offerings, it should consider PaaS instead of the serverless route. IaaS, PaaS, and SaaS are the types of cloud services that help businesses transform their digital experience while reducing the infrastructural costs in turn. What is FaaS (or serverless). Code can be hosted on Apache, Nginx, Passenger or IIS web servers. Pay for What You Use: Fees are computed via usage-based metrics. IaaS offers the lowest level of abstraction. When it comes to choosing whether cloud IaaS, PaaS, or SaaS is right for your business, there are different advantages and disadvantages to each service model. AKS is a managed service more of a PaaS. Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and FaaS are all cloud computing offerings. However, with the IaaS option you need to invest extra time and resources to manage your database, while in PaaS you get administration features included in the price. PAAS gives access to run time environment to deployment and development tools for application. PaaS. PaaS can be used for serverless computing and provide support for serverless architectures, such as Function as a Service (FaaS). It can be divided into 3 categories: IaaS, PaaS, and SaaS. Let’s explore each of them closer. PaaS vs. The data centers required for this are operated and managed by the cloud provider. As more and more companies move their legacy applications and/or infrastructures in the cloud, doing so via adopting the PaaS model has proven to be the most optimal solution. Below fig 1. Azure Functions is also referred as Serverless technology, the idea is to abstract the Server (infra) away and put the main focus on the function (s) of your app. IaaS is infrastructure hosted in the cloud. PaaS vs. ; E. So how does serverless architecture compare to other types of hosting? Each has its specific advantages and disadvantages. These all together are known as cloud computing stack as each service is built ‘on top of’ each another. In contrast, serverless architecture apps are launched only as needed as an event triggers app code to run. AWS might be a better bet for smaller enterprises and companies with an existing AWS footprint. IaaS vs. Companies may use all three services or a combination to address their needs. PaaS aims to provide an environment capable of fostering application development. SaaS so you can make an informed choice. Serverless is based on a usage-based payment model where users only need to pay for the number of requests or execution time. These computers, servers, and other components are present in a region or geography of the vendor’s choice. 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. CaaS is generally termed as a container platform, while PaaS is more commonly termed as application platforms. One new cloud offering that’s quickly gaining steam is “serverless” computing. 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. SaaS vs. log access, backup and recovery, replication, and serverless architecture offerings. In a recent IDG cloud computing survey, 6 in 10 companies. 2 · Saves time and cost. has created the Serverless Framework, an open source project meant to help with building web, mobile, and IoT applications with FaaS. • When deployed as PaaS, an application is typically running on at least on the server at all times. FaaS vs IaaS vs PaaS. Even so, if you’re not super tech-savvy, you might still be a little cloudy on terms. SaaS, IaaS, PaaS, DaaS, and Serverless all require data to be moved from the source to a central database for processing and analysis. From Azure Docs: Serverless computing is a cloud-hosted execution environment that runs your code but completely abstracts the underlying hosting environment. And the fact that people are appreciating and accepting serverless as a platform proves that this is the future. FaaS vs SaaS, PaaS, and IaaS. IaaS. Uses. We’ll cover each type of model, the benefits, and how you can use any or all of. Before deciding between SaaS vs PaaS vs IaaS which one benefits you and your business the most,. If you want the benefits of the cloud, such as scalability, cost model, and disaster recovery, while maintaining a large degree of control, you should opt for the IaaS model. Kubernetes vs. 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. Biaya yang ditawarkan tidak mahal dan cenderung lebih mudah digunakan karena adanya. SaaS is an element of cloud computing. IaaS : 서비스로인프라 (Infrastructure-as-a-service) IaaS 는 가장 쉽게 정의할 수 있습니다. At the highest level, the choice between PaaS and FaaS is a choice of control versus ease of use, and a choice between architectures (monolith versus microservices). IaaS gives the most control, flexibility, and portability, but you have to provision, configure, and manage the VMs and network components you create. d) Container as a Service (CaaS): Is a form of container-based virtualization in which container engines, orchestration and the underlying compute. Infrastructure as a Service (IaaS) is a type of cloud computing that uses the Internet to deliver processing, storage, and networking resources on a pay-as-you-go basis. scalability, cost model, disaster recovery) while maintaining a large degree of control. Kubernetes (k8s) - is a tool for management and launching of containerized apps in the frameworks of declared configuration of containers. Application. We will examine each of these models, but let’s first understand Serverless Computing. Work as a Service (FaaS), also known as serverless computing, is suitable for users who need to run a specific function or component of an application without managing servers. Set up network and storage. PaaS offers developers more flexibility, while BaaS offers more functionality. In the case of both PaaS and IaaS, delivery takes place over. . IaaS vs. Infrastructure as a Service (IaaS) is a cloud delivery model that provides on-demand computing resources over the internet, including networking, storage, and other infrastructural components. While each has its own advantages and disadvantages, the biggest difference is that IaaS, PaaS, and SaaS are designed to be integrated into your. For the purposes of this guide, any reference to “virtualization” will be related to VMs. ) Serverless vs. PaaS • PaaS simplifies the deployment process of applications. SaaS. PaaS solutions typically consume resources at all times. Containers are applications that lead to more. Popular PaaS examples include:PaaS (Platform as a Service) providers sell access to everything a customer would need to develop an app. Knowing the differences between the two can help you save time and avoid mistakes when building cloud-native apps or migrating to the cloud. Cost: Both platform as a service (PaaS) and infrastructure as a service (IaaS) options include a base price that covers the underlying infrastructure and licensing. Function as a Service is a cloud computing service with which applications can be developed and put into operation. 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. 3 Differences between IaaS and PaaS. PaaS vs. 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. Software as a Service (SaaS). This diagram wants to illustrate that you need to. IaaS: Infrastructure as a Service. IaaS vs. Like PaaS and SaaS, IaaS offers access to its services. Serverless vs. When considering database and storage services, the differences between the cloud providers are smaller. IaaS vs. Cloud computing includes four types of services that can run on public, private or hybrid cloud: SaaS, FaaS, PaaS and IaaS. Platform as a Service (PaaS) provides both software and infrastructure that require for the application. 1. Infrastructure as a service (IaaS) It makes up one of four cloud computing models. Google Cloud SQL is a cloud-based implementation of MySQL designed for small-to-midsize applications. PaaS is one of three distinct models for providing cloud computing services. Compared to PaaS, SaaS, and IaaS, SaaS adaptation forecast saw the largest growth, then IaaS and then PaaS. They all offer about 15% of these as PaaS and SaaS services. The result is that applications built on a. Like Azure PaaS, Azure IaaS is built on top of Azure SaaS. IaaS vs PaaS vs SaaS Three categories of cloud computing ; 📝 IaaS, PaaS, SaaS. This then becomes an all-encompassing, serverless computing option for. Why not rent your servers and operational services individually, for a monthly fee? This approach made it way easier to scale up or down, and let teams move faster. FaaS vs. The pay-as-you-go model is quickly becoming the definition of "serverless" since it abstracts away the last indication of servers from the developer. PaaSIaaS vs PaaS vs SaaS: Overview. IaaS includes virtual servers and cloud storage, cloud security, and access to data center resources (managed by the IaaS provider). Organizations do not have to make a definitive choice. Azure Synapse vs Snowflake: PaaS vs SaaS. Overview. ; Allows using a combination of these types of infrastructure. Infrastructure as a Service (IaaS) delivers the hardware for cloud services, including servers, networking, and storage. Microsoft Azure: You must have gone through a Microsoft IaaS vs PaaS vs SaaS term. An internal developer platform has two core user groups, each with its own view: the platform/operations/devops team and the developer team. PaaS. However, ACS is retired now (ref: doc ). With the rapid development of information technology, there are also different cloud service models that have emerged under the industry. The PaaS provider hosts. Platform-as-a-service (PaaS) is the next layer in the cloud computing service model. Infraestructura como servicio (IaaS) Se encarga solo de la parte virtual de esa infraestructura. 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. Data. IaaS also “requires skill and competency. Here, your cloud provider gives you the complete. Platform as a Service (PaaS). 9%, and PaaS with 18. Serverless computing is event-driven without a permanent infrastructure. With BigQuery, you can. Infrastructure as a Service (IaaS) is a form of cloud computing that provides virtualized physical computing resources over the Internet. You purchase the resources you need from a cloud service provider on a pay-as-you-go basis and access them over. So how does serverless architecture compare to other types of hosting? Each has its specific advantages and disadvantages. PaaS vs. In this article, you will learn the differences between Azure IaaS vs. (Read our comprehensive PaaS vs IaaS vs SaaS primer. Microservices - is a design approach to complex programs or services in breaking the system into independent small services and components. Other vendors like IBM Bluemix, Oracle, and Alibaba also have a sizable footprint in the IaaS space. From the developer's point of view, there are no servers in PaaS. It includes all the services in a cloud that customers can order over the Internet. 2. Serverless allows its clients to designate the system sources & to run the server dynamically. Let’s explore each of them closer. IaaS. PaaS is the best choice if you don’t want to deal with the complexity and nuance. The special feature is that the server on which the application runs and the infrastructure of the service are the responsibility of the provider, meaning that associated tasks like maintenance or regular updates are not necessary. SaaS vs PaaS vs IaaS: Which Should You Use? Summary. However, PaaS is still different from serverless computing in terms of where the code is hosted. With Serverless, you would break that up into several functionalities (or Lambdas for Amazon Lambda). Azure Container service was more of a Iaas offering which was supporting container orchestration. On-Premises (on-prem) In traditional On-Premises cloud deployment, you build and operate data centers in multiple geographies. Its resources involve networks, storage, processing power, and virtual private servers. However, which one you choose depends on your business’s requirements. Both FaaS and Serverless have helped organizations in saving money, refocusing developers’ time, relegating infrastructure management, and harnessing cloud technology. Infrastructure as a Service (IaaS)The fastest-growing segment of the overall market belonged to cloud system infrastructure services (IaaS), which was forecasted to grow by 27. Not only is serverless computing a part of the cloud solution, but it also includes a 'pay as you go' model of the use of computing power. VM technology is used today across to. Because FaaS is the most central and most definitional element of the serverless stack, it’s worth exploring how FaaS differs from other common models of compute on the market. 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). SaaS. SaaS, IaaS, PaaS, DaaS, and Serverless all require data to be moved from the source to a central database for processing and analysis. With the launch of AWS Lambda in 2014, the cloud platform extended its services to Serverless infrastructure services (FaaS, PaaS, IaaS, SaaS). Looking at FaaS compared with other types of services puts functions into a context. The 7 Main Benefits of Platform-as-a-Service (PaaS) Among other benefits, PaaS allows users to: Get their products to market faster and gain a competitive edge. SaaS, PaaS and IaaS are all under the umbrella of cloud computing (building, creating, and storing data over the cloud). PaaS platforms are usually more flexible in comparison to a BaaS. Serverless or FaaS means that you don’t have any servers. Serverless development systems, such as AWS Lambda, provide many of the same benefits as PaaS tools, such as developer freedom from instance deployment. IaaS and PaaS are two cloud computing models that have different levels of control for both administrators and consumers. It also considers some of the key trends and standards to stay aware of as a cloud provider. Native & Hybrid Development Strategy: PaaS solutions enable cloud native development technologies, like Kubernetes, serverless computing, microservices, and containers. The adoption of this cloud service model is on the upswing, with an anticipated annual growth rate of about 16. 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). These can provide the organization with the necessary level of control and automation they want. It flows out as much as you need. Please read IaaS vs PaaS to better understand the differences. This AWS Elastic Beanstalk vs. Comparing FaaS vs. Serverless vs. 1. Adopting Cloud – Choosing Between SaaS, IaaS, and PaaS. 1. IaaS, ou infraestrutura como serviço, é o acesso sob demanda a servidores virtuais e físicos, armazenamento e rede hospedados na cloud, e. PaaS vs. With compiled container images support, almost any application that can be deployed on IaaS can run in a serverless PaaS framework. 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: Platform as a Service. At the same time, PaaS enables its clients to develop, execute, and extend. PaaS helps developers build custom apps via. The type of cloud service largely depends on the levels of responsibility and control that you want to have over your IT infrastructure. Azure offers many options for IaaS environments, but all generally fall into the three categories: VMs, virtual networking, and virtual storage. SaaS. Most organizations end up leveraging a mix of IaaS, PaaS, and SaaS for different needs as their cloud strategy evolves. 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. microservice arc hitecture . PaaS is also known as Platform as a Service. A typical PaaS model encompasses the physical infrastructure, cloud applications, and a graphic user interface (GUI). PaaS is a model where a third party provides hardware and software tools over the internet. When I say the complete platform to use, it means the provider takes care of all the underlying parts of the infrastructure. However, PaaS focuses on providing application development tools rather than compute resources. Infrastructure as a Service (IaaS): IaaS provides virtualized computing resources. serverless computing? Serverless solutions are similar to PaaS offerings, allowing developers to create applications that scale automatically without requiring. 1. IaaS vs PaaS vs CaaS vs FaaS. Cloud-based computing comprises three elements, 1. These easily confusable abbreviations stand for: Infrastructure as a Service (IaaS) Platform as a Service (PaaS) Software as a Service (SaaS) “As a service” simply means a facility, usually related to IT, computing, or. Some people consider serverless computing, also known as function as a service (FaaS) to be a form of PaaS. Platform-as-a-Service offerings specify the end use of the software more so than IaaS. Serverless architecture vs. IaaS is exceptional for applications with “spiky” workloads. Serverless development systems, such as AWS Lambda, provide many of the same benefits as PaaS tools, such as developer freedom from instance deployment. IaaS vs PaaS. 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. Below are five such similarities between the two cloud-based business solutions. Here are the 3 most common use case scenarios where the PaaS model shines the brightest: 1.