Before opting for a SaaS cloud computing model, you should also be aware of its potential drawbacks. This results in less responsibility but also less control for the end-user. Not surprisingly, there are also some drawbacks that you need to be aware of before subscribing to a PaaS cloud computing model. As described above, Platform-as-a-Service is used as a way to build new products on top of your already existing network.

With Infrastructure-as-a-Service on the other hand, the provider only supplies and maintains core components such as servers or storage. Software-as-a-Service was around even before companies started migrating to the cloud. Best examples are web-based email services like Outlook or Gmail. Below are a few SaaS providers you’ll probably be familiar with. Business analytics PaaS represents a platform that delivers services involving data storage, data processing, data integration, and business intelligence. While many PaaS vendors offer similar services, each has its own nuances and limitations.

IaaS provides the same technologies and capabilities as a traditional data center without having to physically maintain or manage all of it. IaaS clients can still access their servers and storage directly, but it is all outsourced through a “virtual data center” in the cloud. Common SaaS products include Google Apps, Dropbox, Salesforce, GoToMeeting and Concur. These are all software products that can be accessed through the internet based on a monthly subscription fee. When organizations contract for SaaS services, the software vendor manages every part of the technology stack required to host and deliver the application.

Since SaaS apps often come in a standardized form, the choice of features may be a compromising tradeoff against security, cost, performance, or other organizational policies. Furthermore, vendor lock-in, cost, or security concerns may mean it’s not viable to switch vendors or services to serve new feature requirements in the future. IBM Cloud Pak for Applicationshelps you modernize existing applications, embed additional security, and develop new apps that unleash digital initiatives. It offers cloud-native development solutions that can quickly deliver value, along with flexible licensing that can be tailored to your specific needs.

This allows the organization to shrink the application development timeline and reduce errors by relying on tested and approved code. Unify controls across your IT portfolio Multiple operational platforms are a reality. For operational excellence, use a single toolset to actively control security and management across hybrid clouds and on-premises environments. Hybrid PaaS is a popular model that a lot of businesses are adopting.

What is PaaS model

In selecting a PaaS solution, developers should take into account their business and technical requirements, such as the volume of their projects and the programming languages/frameworks they use. Application programming interfaces are often used in modern applications enabling pros and cons of paas them to share data and functionality. PaaS offers built-in frameworks that make API development faster and easier. Lightning offers a much-improved user interface and has improvements that will boost the experience of both business users as well as on the IT team side.

This means businesses don’t need to install cumbersome developer tools onto local computers or manage complex container orchestrators such as Kubernetes. Instead, PaaS products are provided via the web, making them more accessible and easier to use. Utilizing PaaS is beneficial, sometimes even necessary, in several situations. For example, PaaS can streamline workflows when multiple developers are working on the same development project. If other vendors must be included, PaaS can provide great speed and flexibility to the entire process.

Topics range from the share of SaaS in IT landscapes, how SaaS is purchased, SaaS-related challenges facing EAs, and how SaaS is managed and by which teams/departments. Enabling business-led IT with SaaS management allows the business to maximize the value of SaaS while minimizing the risks. Learn the differences between IaaS, PaaS, and SaaS, their delivery, examples, benefits and disadvantages, and when to use one. If you choose a non-major PaaS provider, you will be vulnerable to server failures, just like with IaaS. To be safe, double-check the principles and guidelines for accountability, control, and disaster recovery. Vendors should have clear policies for disaster recovery and follow the industry best practices in this area.

Saas Characteristics

In response, providers attempted to simplify with preintegrated middleware suites. Virtual private cloud PaaS, businesses can enjoy more control over their data. The infrastructure is exclusive to the user and can be stored in a data centre or on-site.

IaaS provides the infrastructure such as virtual machines and other resources like virtual-machine disk image library, block and file-based storage, firewalls, load balancers, IP addresses, virtual local area networks etc. Infrastructure as service or IaaS is the basic layer in cloud computing model. PAAS is more popular among developers as they can put all their concentration on developing their apps and leave the rest of management and execution to the service provider. Many service providers also offer the flexibility to increase/decrease the CPU power depending upon the traffic loads giving developers cost effective and easy & effortless management.

Walmart Business Model And How It Makes Money

XaaS enables modern businesses to adapt easily to rapidly changing market demands with relevant applications and solutions and enjoy the flexibility of scaling up or down based on their requirements. It helps to remove the complexities of servers and provides a serverless architecture. You can focus on the business logic, and everything in the background is taken care of by service providers—all you have to worry about code development. It provides analytics software over the cloud on the subscription-based model.

What is PaaS model

They are ready-to-use and often run directly through the client’s web browser, meaning there is no need for installations or downloads like it with on-prem solutions. The scalability of IaaS is also great for companies that experience rapid growth. Which model is best for your business highly depends on what you are trying to achieve. If you need a maximum amount of control within the cloud environment and want to avoid external management data issues that could compromise the functionality or security of your data, IaaS is the best option. However, if you don’t need much flexibility and value ease of use, migrating to a small-scale SaaS solution is the better idea.

Iaas Disadvantages

So SaaS is Iaas+PaaS along with different softwares like ms office, virtual box etc.. PaaS, here vendor provides platform to user where an user gets all required things for their work like OS, Database, Execution Environment along with IaaS provided environment. When you have a software developed by you, but you want to deploy and run on a publicly available platform then you use PaaS. Most of the popularity around these services owe to the reputation of the company and the amount of investments being made by these companies around the cloud space. If your developers need access to the underlying infrastructure, this may not be an option with many of the PaaS systems.

You can even include other vendors and stay flexible during the entire process. PaaS is also the way to go if your organization requires customized applications that need to be developed and deployed in a short amount of time. The cloud, and specifically PaaS, have significantly changed how applications are developed, deployed, and managed. With PaaS, applications can be delivered fast and without worrying about the underlying infrastructure and software.

What is PaaS model

Many organizations require deep integrations with on-premise apps, data, and services. The SaaS vendor may offer limited support in this regard, forcing organizations to invest internal resources in designing and managing integrations. The complexity of integrations can further limit how the SaaS app or other dependent services can be used.

On the other hand if you have some application, written in some language, and you want to deploy it over the cloud, you would choose something like Heroku, which is an example of PaaS. Platform-as-a-service is used as a way to build new products on top of your already existing network. But SaaS products are entirely managed by the vendor and ready-to-use by your teams.


XaaS has transformed modern businesses, and now wide-ranging IT services and resources are delivered using this. The examples of XaaS can be SaaS, PaaS, IaaS, CaaS, DaaS, DBaaS, CaaS, and more. The XaaS model is applied across multiple industries, from IT, banking, and finance, to healthcare, manufacturing, and education. SaaS is ideal for small companies or startups that don’t have the capacity to develop their own software applications. From e-commerce to short-term projects, SaaS is the quickest and easiest solution if you don’t need highly customized applications. SaaS is also a great option for applications that are not used very often, e.g. tax software.

In case the vendor has some issues and you need to move to a new one, it will affect your functionalities. Moving to a new provider can be costly as you will need to migrate every app aspect. Refers to the development and deployment of mobile apps via the cloud.

SaaS utilizes the internet to deliver applications, which are managed by a third-party vendor, to its users. A majority of SaaS applications run directly through your web browser, which means they do not require any downloads or installations on the client side. PaaS, SaaS and IaaS represent the three most common models for service delivery in cloud computing and the three most readily available alternatives to full on-premise IT infrastructure deployment. Each cloud computing model differs in terms of what aspects of the technology stack are outsourced to a third-party vendor and which functions are managed in-house.


Because the vendor controls and manages the SaaS service, your customers now depend on vendors to maintain the service’s security and performance. Planned and unplanned maintenance, cyber-attacks, or network issues may impact the performance of the SaaS app despite adequate service level agreement protections in place. Vendors may make it easy to join a service and difficult to get out of it. For instance, the data may not be portable–technically or cost-effectively–across SaaS apps from other vendors without incurring significant cost or inhouse engineering rework. Not every vendor follows standard APIs, protocols, and tools, yet the features could be necessary for certain business tasks. IBM provides rich and scalable PaaS solutions for developing cloud native applications from scratch, or modernizing existing applications to benefit from the flexibility and scalability of the cloud.

Saas Vs Paas

Many cloud, software and hardware vendors offer PaaS solutions for building specific types of applications, or applications that interacting with specific types of hardware, software or devices. Because PaaS delivers all standard development tools through the GUI online interface, developers can log in from anywhere to collaborate on projects, test new applications, or roll out completed products. Applications are designed and developed right in the PaaS using middleware. With streamlined workflows, multiple development and operations teams can work on the same project simultaneously. An IaaS cloud vendor runs and manages server farms running virtualization software, enabling you to create VMs that run on the vendor’s infrastructure and install anything you want on it. Developers don’t have control over the hardware or virtualization software, but they have control over almost everything else.

With PaaS, your application developers can focus on building code and not worry about configuring and managing the underlying infrastructure. It is possible to develop, test, deploy and update your applications on a PaaS system without needing to have an infrastructure expert on staff. It means a cloud provider is giving you complete software like servers, databases, application codes in the form of service. Below, you can see how the public cloud computing market share has developed over the course of three years as well as its projection for 2022. The leading service in the cloud computing industry is SaaS with a 39.4% cloud computing market share in 2021, followed by the fastest-growing cloud service IaaS with 20.9%, and PaaS with 18.7%. PaaS software is generally offered in a public cloud where it is shared by multiple users, which creates a higher risk of security vulnerabilities.

Users have commented that using it can be as simple as learning from a Youtube video. Having said that, it has gotten somewhat mixed reviews to date, with users finding there seems to be a balance of pros and cons depending on what they use it for. Among issues raised on a more generic level are the inadequacies of the control panel, complexity, and time taken for instance provisioning. Google offers their App Engine as part of the Google Cloud ecosystem. It’s intended to be a highly scalable serverless PaaS used for rapid deployment. Google, being the giant it is, can provision highly capable servers capable of coping with almost any volume of query.

It takes care of all the backend services of an application, and the developers can focus only on writing and maintaining the frontend side of the application. It provides backend services like database management, user authentication, cloud storage, hosting on the cloud, push notifications, etc. 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. For example, your servers are taken care of, and your virtual machines are taken care of, you are given some predefined tools which you can use to build your applications. Infrastructure as-a-service offers you a great deal of control over your operating systems.

With platform-as-a-service on the other hand, you can build apps without having to host them on-premise, so you benefit from more flexibility but get a little less control. The platform that can be accessed through the internet provides developers with a framework and tools to build apps and software that are tailored to the organization’s individual needs. As you can tell, each cloud computing model is appropriate for different businesses and business needs. And since each model has its pros and cons, it’s important to know what is more valuable to you and your company – control, customization, or convenience.

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