Table 6.
Recommended work group structures for detecting errors in GVF digitization. The missed error percentages for random digitizer selection represent the maximum observed within 99% of this study’s simulations. The missed errors for screened digitizers were those observed for the best digitizers in this study. Performance of expert readers was not evaluated in this study.
| Digitizing work group structures and errors missed | |||||
|---|---|---|---|---|---|
| Error detection method | Supervisor tasks | Redundant digitizing | Digitizer selection method | Digitizers | Errors missed |
| Expert reader review | Check all GVF data for errors | No | Random | 1+ | - |
| Flag digitizing discrepancies | Investigate discrepancies only | Yes | Random | 5 | 5% |
| 7 | 1% | ||||
| 8 | 0% | ||||
| Screened | 2 | 15% (2/13) | |||
| 3 | 0% (0/21) | ||||