| Article ID: | iaor1988510 |
| Country: | United Kingdom |
| Volume: | 17 |
| Start Page Number: | 195 |
| End Page Number: | 196 |
| Publication Date: | Apr 1989 |
| Journal: | OMEGA |
| Authors: | Sculli D. |
| Keywords: | PERT |
This paper re-examines some of the literature from the 1950s and early 1960s relating to the three time estimates used in PERT application. It helps to explain why the beta formula was used and the disadvantages of this.