least slack rule
least slack rulea sequencing rule for the selection of the next item of work. The next job to be processed is the one where the time difference between the due date and the operating time is the smallest for all jobs waiting. See PRODUCTION SCHEDULING.
Collins Dictionary of Business, 3rd ed. © 2002, 2005 C Pass, B Lowes, A Pendleton, L Chadwick, D O’Reilly and M Afferson