OPMA 405 MIDTERM EXAM QUESTIONS AND ANSWERS OPERATIONS MANAGEMENT STUDY GUIDE 2026/2027 | COMPLETE MIDTERM REVIEW

OPMA 405 MIDTERM EXAM QUESTIONS AND ANSWERS OPERATIONS MANAGEMENT STUDY
GUIDE 2026/2027 | COMPLETE MIDTERM REVIEW



Waiting Lines

(Queueing System Schematic) - ANS ✔✔1) Calling Population []



2) Arrival Process --> (Balk)



3) Queue Configuration [] (Renege)



4) Queue Discipline -->



5) Service Process []



6) Departure -->



7) No future need for service []



Calling Population - ANS ✔✔1) Subpopulation

- Finite

- Infinite



2) Homogeneous Groups

- Finite

- Infinite

, --> Most models assume homogeneous + infinite

--> Subpopulation characteristic of yield management industries



Arrival Process - ANS ✔✔1) Static:

- Random arrivals w/ constant rate (rare)

- Random arrival w/ varying rate (common)



2) Dynamic:

- Facility controlled: Accept/Reject, Price, Appointments

- Customer-exercised control: Reneging, Balking



--> Dynamic arrival means customers/company change their behaviour



4 ways we describe the Arrival Process? - ANS ✔✔1) Interarrival Time

2) Exponential Distribution

3) Poisson Distribution

4) Temporal Variation in Arrival Rates



Describe Interarrival Time - ANS ✔✔Time between arrivals --> modelled by exponential
distribution



- μ similar to σ

- # of customers = λ

- 1/λ = time between customers

- 2 equations