The Software & Information Industry Association ([[SIIA]]) defines SaaS as an ''application or service deployed in a centralized data center across a network such as the Internet, Inranet, [[LAN]] or [[VPN]].''<ref>[http://www.siia.net/estore/pubs/SSB-01.pdf Software as a Service:Strategic Backgrounder]</ref> Users maybe able to access the SaaS through subscription or by renting it from a vendor or service provider. | The Software & Information Industry Association ([[SIIA]]) defines SaaS as an ''application or service deployed in a centralized data center across a network such as the Internet, Inranet, [[LAN]] or [[VPN]].''<ref>[http://www.siia.net/estore/pubs/SSB-01.pdf Software as a Service:Strategic Backgrounder]</ref> Users maybe able to access the SaaS through subscription or by renting it from a vendor or service provider. |