Software as a service (SaaS) is a product authorizing and conveyance show in which programming is authorized on a membership premise and is halfway facilitated. It is now and again alluded to as "on-request programming", and was once in the past alluded to as "programming in addition to administrations" by Microsoft. SaaS is regularly gotten to by clients utilizing a thin customer by means of a web program.

SaaS has turned into a typical conveyance display for some business applications, including office and informing programming, finance preparing programming, DBMS programming, administration programming, CAD programming, improvement programming, gamification, virtualization, bookkeeping, joint effort, client relationship administration (CRM), Management Information Systems (MIS), undertaking asset arranging (ERP), invoicing, human asset administration (HRM), ability securing, content administration (CM), and administration work area administration. SaaS has been consolidated into the methodology of about all driving endeavor programming organizations.