Rating | Conditional attribute and definitions |
Acceptance = acceptability of the equipment to the operators | |
1 | No user previously experienced with the task accepted or adopted the new equipment. |
2 | About 25% of the users accepted and adopted the equipment. The remaining 75% switched back to the old equipment. |
3 | About 50% of the users accepted and adopted the equipment. The remaining 50% switched back to the old equipment. |
4 | About 75% of the users accepted and adopted the equipment. The remaining 25% switched back to the old equipment. |
5 | All users previously experienced with the task accepted or adopted the new equipment |
Skill = requirement for additional (new) skill | |
1 | The skill required to operate the equipment is difficult to acquire. |
2 | The skill required is considerable, is acquired on the long term with practice. |
3 | The skill requirement is moderate, is met on the medium term with practice. |
4 | The skill required is minimal, is acquired easily with a bit of practice. |
5 | No special skill is required. |
Standard = degree of standardisation of the new equipment relative to the old | |
1 | The new equipment is not comparable (the mode of task execution is disruptive). |
2 | Differs markedly (one or more major modifications transform the task in part). |
3 | Moderate difference (various minor modifications intended to improve task performance). |
4 | Slight difference (one or two modifications intended to improve task performance). |
5 | Practically no change (the modifications are not apparent in the execution of the task). |
Workspace = quality (comfort) of the space surrounding the operator | |
1 | Poor, several aspects (unspecified) need improvement. |
2 | Average, at least two aspects (unspecified) need improvement. |
3 | Acceptable overall. |
4 | Very good, except for one aspect that could be improved. |
5 | Excellent in all aspects. |
Involvement of the operators in the equipment implementation process | |
1 | No involvement (indifference to the success of the equipment introduction). |
2 | Passive participation, operator somewhat responsive. |
3 | Whimsically passive or active involvement. |
4 | Active involvement not leading to rapid optimisation of the use of the new equipment. |
5 | Involvement leading to rapid optimisation of the use of the new equipment. |
Vision = Quality of the field of vision | |
1 | Poor, hindered by one or two aspects making equipment operation difficult or dangerous. |
2 | Average, one or two aspects occasionally making operation difficult or dangerous. |
3 | Acceptable overall. |
4 | Very good, except for one aspect that could be improved. |