Lee's Notation - Definition & Meaning
Published in Operations and Supply Chain Terms by MBA Skool Team
What is Lee's Notation?
Kendall Lee’s notation is used in queuing theory as the standard system to describe and classify a queue model.
A/S/c/K/N/D
- A – Arrival process
- M - Poisson distribution; random arrival process
- D – Degenerate distribution; Deterministic or fixed arrival rate
- G – General distribution
- E – Erlang distribution
- S – Service time distribution
- M – Exponential service time
- D – Degenerate distribution; Deterministic or fixed service time
- E – Erlang distribution
- C – Number of servers
- Can range from 1 to many
- K – Capacity of the whole system, i.e., maximum number of customers allowed in queue plus those being serviced.
- By default taken as infinity
- N – Size of the population from where customers are coming.
- By default taken as infinity
- D – Queue discipline, i.e., the order in which the customers in queue are being served
- FCFS – First come first serve; Default
- LCFS – Last come first serve
- SIRO – Service in random order
- PS – Processor sharing
- PNPN – Priority service
Example: M/M/1
This is a queue with poisson arrival process, exponential service time, one server, infinite system capacity, infinite calling population and FCFS order.
This article has been researched & authored by the Business Concepts Team. It has been reviewed & published by the MBA Skool Team. The content on MBA Skool has been created for educational & academic purpose only.
Browse the definition and meaning of more similar terms. The Management Dictionary covers over 1800 business concepts from 5 categories.
Continue Reading:
Important Definitions:
Share this Page on:
Follow us on 
2011-2024 | MBASkool.com