Orphanware is
software that was purchased and installed, but no person in the company was assigned to or has taken responsibility for its operation and maintenance.
The
end result is software which
may be running on critical production systems, but no one in the organization exists to provide critical updates, reconfigure features or options, resolve outages, or guide users who need assistance with issues. Orphanware, or software which has been orphaned, is at risk of an unrecoverable catastrophic failure.
Since Orphanware has been purchased and installed, but isn'
t actively managed or kept up-to-date, it is differentiated from Shelfware, which was purchased but
never installed; and Vaporware, which was
never released in the first place.