What Is SaaS?

Software as a Service (SaaS) is a software licensing and delivery model in which software is licensed on a subscription basis and is centrally hosted on cloud. Consumers do not need to manage the software architecture, software maintenance and the underlying infrastructure. End users access the SaaS application using a thin client like web browser.

software as a service

Business Advantages of SaaS

SaaS shortens the application or software delivery time as it removes the need for architecture planning, software implementation, application customization, performance test, load test, etc. It also frees up human resources to let consumer focus on core businesses and content delivery rather than underlying technologies.

Technical Advantages of SaaS

SaaS offers flexible scalability and high availability across different geographical locations. For example, SaaS application serves users in Asia and Europe without performance issues or scalability issues if the number of users grows rapidly.
Traditionally, implementing enterprise software usually takes months from project start to production go live. SaaS shortens the delivery from months to days or even hours.
Patch management of an application and its underlying stack is always a pain point in any enterprise, especially if there is a need tocomply with policies or standards such as PCI DSS. With SaaS, consumers do not need to use their own resources or coordinate/communicate with different stakeholders for patch management activities.

Financial Advantages of SaaS

Like IaaS and PaaS, SaaS typically offers financial flexibility as well. Two typical billing methods for SaaS services are Pay-As-You-Go and Subscription. Costs are based on actual usage, and scale with time and user base.

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