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Error modes used to code step discrepancies from expected practice when retrieving information from a medicines guideline, as described in the hierarchical task analysis
| Error mode code | Error mode description |
|---|---|
| A1 | Operation took too long |
| R1 | Information not obtained |
| R2 | Wrong information obtained |
| R3 | Incomplete information obtained |
| R4 | Information not sought |
| R5 | Information not available |
Error modes coded ‘A’ are ‘action errors’ and those coded ‘R’ are ‘retrieval errors’ [25]
