Software licenses typically provide end users with the right to one or more copies of the software without violating copyrights. Its a document that provides legally binding guidelines for the use and distribution of Software. A software license can b exclusive or non-exclusive, may be limited to a specific geographic territory, with or without a right to make and store copies, and with a limited scope of access and use. All this assumes that the software needs to be downloaded or installed on the licensee’s platform/network/computer.
Software as a service (or Saas) is a way of delivering applications over the Internet – as a service. Its a way of Software licensing and delivery model in which software is licensed on a monthly subscription basis and is hosted centrally. Saas is a software distribution model in which a cloud provider hosts applications and makes them available to end users over the Internet.