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Software as a Service in Cloud Computing

Software as a service is a software licensing and delivery models in which software is licensed on a subscription basis and is centrally hosted. SaaS is also known as "on-demand software" and Web-based/Web-hosted software. Free azure training - What is Software as a Service - SaaS Azure #5 SaaS, PaaS, and IaaS are simply three ways to describe how you can use the cloud for your business model. IaaS: cloud-based services, pay-as-you-go for services such as storage, networking, and virtualization. PaaS: hardware and software tools available over the internet. SaaS: software that’s available via a third-party over the internet. On-premise: software that’s installed in the same building as your business. SaaS platforms make software available to users over the internet, usually for a monthly subscription fee. SaaS Characteristics: SaaS platforms are: Available over the internet. Hosted on a remote server by a third-party provider. Scalable, with different tiers for small, medium, and enterprise-level businesses. Inclusive, offering security, compliance, and maintenance as part of the cost. When to Use SaaS: Let's take your email server, for example. You want to know that you’ll continue to send and receive emails without needing to fiddle with your email settings or worry about updates. Imagine if your email server went under because you forgot to update it and you went days without email? That’s simply not an option in today’s marketplace. If you use a SaaS platform to run your email inbox, the chances of something going wrong are very small. And if something did go wrong, it would be up to the SaaS provider to find a solution. What are the differences between IaaS, PaaS, and SaaS? IaaS is there to provide you with maximum flexibility when it comes to hosting custom-built apps, as well as a providing a general data center for data storage. PaaS is most often built on top of an IaaS platform to reduce the need for system administration. It allows you to focus on app development instead of infrastructure management. SaaS offers ready-to-use, out-of-the-box solutions that meet a particular business need (such as website or email). Most modern SaaS platforms are built on IaaS or PaaS platforms. Benefits Using SaaS has proved to be beneficial in terms of scalability, efficiency and performance. Some of the benefits are listed below: Modest software tools Efficient use of software licenses Centralized management and data Platform responsibilities managed by provider Multitenant solutions Modest software tools The SaaS application deployment requires a little or no client side software installation, which results in the following benefits: No requirement for complex software packages at client side Little or no risk of configuration at client side Low distribution cost Efficient use of software licenses The customer can have single license for multiple computers running at different locations which reduces the licensing cost. Also, there is no requirement for license servers because the software runs in the provider's infrastructure. Centralized management and data The cloud provider stores data centrally. However, the cloud providers may store data in a decentralized manner for the sake of redundancy and reliability. Platform responsibilities managed by providers All platform responsibilities such as backups, system maintenance, security, hardware refresh, power management, etc. are performed by the cloud provider. The customer does not need to bother about them. Multitenant solutions Multitenant solutions allow multiple users to share single instance of different resources in virtual isolation. Customers can customize their application without affecting the core functionality. Issues There are several issues associated with SaaS, some of them are listed below: Browser based risks Network dependence Lack of portability between SaaS clouds Timestamps: Chapters Example of SAS service Model #PaddyMaddy #cloud Computing #azure tutorial #microsoft azure tutorial for beginners #azure for beginners #azure basics #microsoft azure training #Az-900 #AZ-500, #microsoft azure certification, #AZ303