If a job is ahead of schedule, then its critical ratio(CR) will be greater than one.
A dispatching rule that divides the time left before the due date by the anticipated amount of time needed to complete the task to arrive at a priority index number. Ratios below 1.0 are typically considered to be behind schedule, whereas ratios above 1.0 are considered to be ahead of plan, and a ratio of 1.0 is on schedule.
Explanation:
The critical ratio (CR) is a measure of the progress of a project relative to its timeline. When a job is ahead of schedule, the amount of work completed is greater than the amount of work planned for the same period of time, resulting in a CR that is greater than one. This indicates that the job is progressing faster than expected and is ahead of schedule.
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