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Lesson 9 - Scheduling Flashcards

(13 cards)

1
Q

Scheduling

A

Establishing the timing of the use of equipment or other resources, occurs in
every organization. Scheduling decisions are final step before actual output occurs, objective:
trade-off between efficient utilization and minimization of customer waiting time.
Encompasses allocating workload to work centers and determining sequence of work

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2
Q

Success determinants

A

Process&Product Design, preventive maintenance, rapid repair, optimal product mixes with minimized costs, minimization of quality problems, reliability & timing of supplies

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3
Q

Low-Volume Systems

A

Systems that handle customized or variable jobs, often with unique requirements

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4
Q

Intermediate-Volume Systems

A

Systems that periodically switch from one type of job to another, typically producing in batches

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5
Q

High-Volume Systems

A

Systems that handle large quantities of standardized products using standardized equipment linear flow, e.g. car manufacturing

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6
Q

Gantt Charts

A

chart used as visual aid for loading/scheduling purposes: organize use
of resources in a time framework (kind of like a classroom schedule) Two Types

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7
Q

Load Chart

A

depicts loading & idle times1 for a group of machines/depart.
Inifinite loading: assigns jobs without regard to capacity→over(under)loads:
manager needs to find response (shift to other periods, overtime, subcontract) Finite loading: projects actual job starting/stopping times with capacity
For(back)ward scheduling: scheduling ahead/backward from a point in time

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8
Q

Schedule Charts

A

monitor progress of jobs and whether they are on schedule

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9
Q

Input/Output control

A

managing workflows and queues at work centers, balance input and output rates, so the center is neither under(over)utilized: stoplights on expressway
on ramps. Report reveals deviations from plan

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10
Q

Job Flow time

A

time it takes from when job arrives until it’s complete (incl.waiting)

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11
Q

Job lateness

A

difference between actual completion and due date

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12
Q

Makespan

A

time needed to complete a group of jobs/I think just processing time

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13
Q

Average number of jobs

A

Total flow time/makespan

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