what is software as a service
Software-as–a-Service (SaaS) model allows to provide software application as a service to the end users. It refers to a software that is deployed on a host service and is accessible via Internet. There are several SaaS applications listed below: Billing and invoicing system Customer Relationship Management (CRM) applications Help desk applications Human Resource (HR) solutions Some of the SaaS applications are not customizable such as Microsoft Office Suite. But SaaS provides us Application Programming Interface (API), which allows the developer to develop a customized application. Characteristics Here are the characteristics of SaaS service model: SaaS makes the software available over the Internet. The software applications are maintained by the vendor. The license to the software may be subscription based or usage based. And it is billed on recurring basis. SaaS applications are cost-effective since they do not require any maint...