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Exam 14: Operations Scheduling and Sequencing

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Question 31

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Two examples of process-focused performance measures for sequencing rules are flow time and lateness.

A) True
B) False

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Question 32

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The table below includes processing times and due dates for five jobs. a.Use the Shortest Processing Time Rule (SPT) to determine the average flow time. b.Use the Earliest Due Date Rule (EDD) to determine the average lateness.

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a.Sequence the jobs as D-E-A-C-B. Flow t...

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Question 33

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If the highest priority is to minimize the average job lateness, then the jobs sequence should begin with those jobs requiring

Which of the following is an example of a situation for which a Gantt chart would be appropriate?

ScheduleAnywhere.com on-line software helps clients do all the following except

Scheduling applies to all aspects of the value chain.

A movie theater requires the following minimum number of employees, each of which is required to have two consecutive days off. How many employees are needed so that each as two consecutive days off? Construct a work schedule for these employees.

Considering a two-resource sequencing problem,

A print shop has five large commercial printing jobs to finish. They are trying to decide whether to use the shortest processing time (SPT) or the first-come first-served (FCFS) sequencing rule. Data on estimated processing time (in hours) and time to promised completion (in hours) is as follows (jobs shown in order of arrival): a.What is the average flow time in hours using the FCFS rule? b.What is the average job lateness in hours using the FCFS rule? c.What is the average flow time in hours using the SPT rule? d.What is the average job lateness in hours using the SPT rule?

Rescheduling rarely occurs unless customers change their requested due dates.

High flow times reduce WIP inventory.

In sequencing jobs in a flow shop with two resources, Johnson's rule finds a sequence that has the smallest makespan.

In sequencing a set of jobs on a single processor, different sequences will have different makespans but the same average flow times.

Explain the three categories of criteria used to evaluate job sequencing performance. For each category, provide two example measures.

Triage by nurses in an emergency room would be an example of

Johnson's sequencing rule is used to sequence

Staff scheduling attempts to match available personnel with the needs of the organization by performing what four steps?

In practice, whenever processing times of a set of jobs are about equal, managers typically use a first-come, first-serve rule.

The following five jobs, along with their processing time and due dates, are given below. a.Use the Shortest Processing Time Rule (SPT) and determine the average flow-time for the five jobs b.Use the Earliest Due Date Rule (EDD) and determine the average lateness and tardiness.

Since all jobs eventually get done, job sequencing has no effect on resource utilization.