One of the most popular forms of cloud computing is software-as-a-service (SaaS) . Software as a service (SaaS) is a model for the distribution of software where customers access software over the Internet anytime & anywhere. Software as a service (SaaS) is a key component of the cloud-computing ecosystem. SaaS replaces the traditional concept of buying physical copies of software and installing them on local hardware. Software as a service ( SaaS) is a delivery and licensing model in which software is accessed on the web via subscription rather than installed on local computers. Advantages of Software as a service (Saas): Low Cost: Unlike traditional software, SaaS ( Warals Software ) is usually sold on a subscription basis that includes upgrades, maintenance and a degree of customer support. Subscription Charges after 1 year would low as actual price. Easy Accessibility (Anywhere Any Time): A software as a service application is easily accessible. A computer and a s...