SAAS the term used for SOFTWARE AS APPLICATION SERVICE, is a software application provided on a leased format to the clients and it is economical and trouble free in terms of all bug fixing and feature upgrades. The Licensing poicy for the leased application is based on the supports and features upgrade which are provided by the provider over a period of Time.
All bug fixing in an SAAS applicationis usually procided free of cost as long as the software is leased to the clients. All web based SAAS application is generally provided as a hosted solution and the servers for the application is well tuned to run the application and hosting a SAAS application on thord party server the providers does not bear any responsibilty to security, performance and feature upgrades.