fixed scheduling

A method for scheduling preventive maintenance work that sets the execution of a preventive maintenance procedure according to the scheduled first execution date, rather than the completion date of the last work. For example, suppose you set a PM procedure to be executed on the first day of each month, so that a job is due January 1. However, because of a holiday, the work is not completed until January 3. With fixed scheduling, the next due date for the PM procedure is February 1 (one month from the scheduled execution date) instead of February 3 (one month from the actual completion date). Compare floating scheduling.