| Article ID: | iaor19891143 |
| Country: | Netherlands |
| Volume: | 8 |
| Issue: | 6 |
| Start Page Number: | 337 |
| End Page Number: | 338 |
| Publication Date: | Dec 1989 |
| Journal: | Operations Research Letters |
| Authors: | Schweitzer Paul L. |
Using a specific form of the estimate for queueing delays at FCFS servers, it is shown that approximate Mean Value Analysis will predict utilizations below 100% at FCFS servers. However, other estimates of queueing delays may yield utilizations exceeding 100%.