Assume you are sequencing jobs using Johnson's rule. A particular job requires 7 hours to assemble and then is followed by 8 hours in the painting department. Which of the following is where you would schedule this job?
A) As early as possible in the unfilled job sequence.
B) As late as possible in the unfilled job sequence.
C) The schedule would depend on the due date.
D) Does not matter.
E) Johnson's Rule does not apply.

Question

Quizplus · Accepted Answer

Johnson's rule is used for minimizing the total time taken to complete a set of jobs that are to go through two stages of production. The rule states that if a job has a shorter first operation, it should be scheduled as early as possible, and if it has a shorter second operation, it should be scheduled as late as possible. Since the given job requires 7 hours to assemble (first operation) and then 8 hours in the painting department (second operation), it has a shorter first operation and thus should be scheduled as early as possible in the unfilled job sequence.

Assume You Are Sequencing Jobs Using Johnson's Rule