The phrase used to describe a type of purchase or license agreement that is based on the number of simultaneous users accessing the software. For example a 10-user concurrent use license would allow ten users to log in and use the software at one time, but the eleventh user attempting to log in would be blocked, and unable to initiate a session until one user logs out.
See “Is Software Ownership the Same as Licensing?” in Webopedia’s “Did You Know…?” section.
