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OSCM 373 Final questions with 100% correct answers

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  • OSCM 373
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  • OSCM 373

OSCM 373 Final questions with 100% correct answers

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  • September 18, 2024
  • 17
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • OSCM 373
  • OSCM 373
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kirus27
OSCM 373 Final

Lean Operations address... - correct answer ✔✔eliminating waste

- things related to time and space



remove variability

-inventory hides variability



increase throughput



Short-term scheduling - correct answer ✔✔allocate and prioritize resources to meet demand



days, hours, minutes



if effective, gives competitive advantage



forward vs backward scheduling - correct answer ✔✔Forward:

starts as soon as requirements are known

may not meet due dates

-frequently customers must wait for service



Backward:

starts with due date

resources may not be available, not good schedule



Finite vs Infinite loading - correct answer ✔✔Goal: assign jobs to work stations

,Finite

-assign up to the capacity of work station

-all work gets done, due dates may be pushed out



Infinite

-does not consider capacity

-ALL due dates are met



input/output control - correct answer ✔✔Form of loading(assigning efficient jobs)



identifies overloading and underloading conditions



managerial assistance needed



operations personnel can change input, capacity, and performances



Gantt Charts - correct answer ✔✔planning charts used to schedule resources and allocate time



Gantt Scheduling chart

-monitors jobs in process



Gantt Loading chart

-shows idle time, machines, departments



HAVE to be updated frequently to account for change



Assignment Method - correct answer ✔✔A model to assign tasks or jobs to resources



only one job or worker is assigned to one machine

, objective is to minimize cost or time



Sequencing Jobs (types) - correct answer ✔✔FCFS : first come, first serve



SPT: shortest process time



EDD: earliest due date



LPT: longest processing time



Critical ratio - correct answer ✔✔Time remaining until due date divided by work remaining to be done.



helps determine status of specific jobs



CR < 1 ----job is late



CR= 1 --- job is on time



CR > 1 --- job has slack



helps establish priorities for jobs



Johnson's Rule - correct answer ✔✔an approach that minimizes the total time for sequencing a group of
jobs through two work centers.... minimizing total idle time in the work centers



-two or more jobs that pass through same two workcenters and same sequence

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