What Is a SaaS Model

SaaS or Software as a Service is meant for delivering applications over the Internet as a service and in return charging some amount from the user. Instead of installing and maintaining software, the user simply can access it via the Internet and avoiding complex software and hardware management. SaaS applications are sometimes called Web based software or on-demand software, or hosted software.

These applications run on the server of the service provider and the provider manages access to the application keeping in consideration the security, availability, and performance.

Some of the main features of this model are:

It allows the customers pay only a small amount of money for even high costing software’s as the customers are charged on usage basis. The Model allows the customers select modules they prefer in any software. The customers are provided with full features of the software. The customers pay only for the number of software users on a monthly basis. The SaaS Model allows the customers get online support in different languages (e.g. English) via chat, email, and phone.

The users are to pay for customization of software only as and when they need this.

The SaaS Model is designed to allow customers use the full features of the software.

Many service providers even have helpdesk staffs for continuously supporting SaaS Model.

This model provides the user with specialized software functionality which is delivered over the Internet to users who intend to use the set of delivered functionality to augment or replace real world processes. Users within the SaaS space are aggregated into tenants.

The vendor supplies the hardware infrastructure, the software product and interacts with the user through a front end portal. SaaS is a very broad market. Services can be anything from Web based email to inventory control and database processing. Because the service provider hosts both the application and the data, the end user is free to use the service from anywhere.

Thus the SaaS model has many advantages. Some of these are of On Demand Service, Broad Network Access (capabilities are available over the network and accessible from anywhere and from any device e.g., mobile phones, laptops etc…), Measured Service (cloud systems automatically control and optimize resource use by leveraging a metering capability at some level of abstraction appropriate to the type of service).