Items included/excluded after each round of the Delphi process
| No of items | Inclusion | Exclusion | |
|---|---|---|---|
| Round 1 | |||
| Section 1: Development | 18 | 17 | 1 |
| Section 2: Attributes | 11 | 7 | 4 |
| Section 3: Usability | 11 | 5 | 6 |
| Total | 40 | 29 | 11 |
| Round 2 | |||
| Section 1: Development | 19 (2 new) | 14 | 5 |
| Section 2: Attributes | 7 | 7 | 0 |
| Section 3: Usability | 5 | 5 | 0 |
| Total | 31 | 26 | 5 |