Software Licensing
A software license is a legally binding agreement that specifies the terms of use for an application and defines the rights of the software producer and of the end-user.
All software must be legally licensed before it may be installed. Proof of purchase (purchase orders, receipts, invoices or similar documentation are acceptable) must be maintained by individuals or departments for all non-ITS provided software that is installed on a university-owned computer.
Types of licenses
Proprietary license
Most software licenses are "proprietary" licenses, meaning the software publisher grants a license touse one or more copies of software, but that ownership of those copies remains with the software publisher. The user must accept the license before they are permitted to use the software.
GNU General Public License
These are agreements under which much "open source" software is licensed. End users may do things like change the source code, but any refinements of the software must also be made available under a GNU GPL license.
Workstation licenses
These are licenses that permit the installation of an application on a single computer. You may not install the software on more than one machine unless you purchase a license for each additional machine.
Site licenses
A site license permits the use of software on any computer at a specified site. Unlimited site licenses allow the installation of software on any number of computers as long as those computers are located at the specified site.
Perpetual licenses
These are licenses without expiration dates, which permit use of the software indefinitely, without requiring a recurring fee for continued use. Most software that individuals buy for use on their home computers are perpetual licenses.
Non-perpetual licenses
These are licenses that "lease" the software for use for a specified period of time, usually annually or sometimes bi-annually. Users are required to remove the software from their computer if they cease paying the license fee.
License with Maintenance
Some license agreements allow the user to purchase "maintenance" or "software assurance" along with the original license fee, which entitles the user to receive new versions of the software for one to two years until the maintenance agreement expires.